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I HV WILLIAM SAUXDLRS, F.R.S.C, K,ll,.» , f till" .\mr>ricim Associutioii for tho Advaiu .Miu'iit of Soiunco, Follow of tlio K.iyal Mi.roscopioal Sociiity of l.omloii, KiikIhiuI, I'residoiit of tho Kiitomolosioal Society ul Ontario, Kilitur of tho " Cuiiadiaii Kntoniolotrist," I'rosideiit of tlio Fniit- Crovvors' AsHociafioii of Ontario, (,'orro.t|ioii(ling Jlornbor of tlio Aiii.'iiian Krilomological Soi-ioty, I'liiladolpliia, of tho Ihillalo Socioty of Natural Scioiiccs, thi> Nalnial History Socioty id' Jloiitreal, etc. ll.M'STllATKn WITH FOUR IKINDRKI) AND FOIITV WOOD-CUTS. PHI I. A DKI.l'iriA: J. B. LIPPINCOTT & CO. LONDON: 16 S U T II A iMPT N STIIRKT. STRAND. 1 8 8 ',]. Copyright, 1883, by J. 11. LipnNCdiT A Co. DEDICATIO]S[. To (l.e Fruit-Growors of AnuM-ica this work is respectfully dedi- oatod. with an earnest l.ope ,l..t it may be of praetioal use to ti.e.n '" t''« wurfaro with destructive insects in which they are con- stiititly enf:;a^ed. W. SAUNDERS. PREFACE. TiiK ciiltivatioii of fruit in America lias of late years become of >■<> much commercial imj)ortance, as well as do- iin'-tic interest, that no apolouy is necessary for ofVerinti' to lli(! iVuit-tirowinti- community a work of wiiich they must have loMij: felt the need. 'flic amateur who plants a city lot, ami the farmer who devotes a ])ortion of his land to the cultivation of those iVuits which furnish from niontli to nior/h pleasant and ehant^eful variety to the tahle, as well as those who orow fruit to siip|)ly tlu; home and foreign markets, are alike in- terested in making this pursuit a success. Injurious insects are so universally distributed that there is no |)art of our continent where fruit-culture can be jirolitably carried on without some elfort beint:; made to subdue them. Amonjj; the insect hosts we have friends as well as foes, and it is to tlu' friendly species that nature has assi<:;ne(l tlie task of kecpiiii; in subjection those which are destructive; these, in many instances, do their work most thoroughly, devouriiij:; in some eases the e^gs, in others the bodies, of their victims. It is not uncommon to find the antipathy to insects carried so far that a war of extermination is waged on all, and thus many of man's most ellicient allies are consigned to destruction. The information necessarv to enable the fruit-urower to 6 PREFACE. (leal intelligently with this subjeet hius not hitherto been easily aeeessible, having been ditrused ehiefly among a large nnniluT of voluniinons State and Departmental reports and books on seientifie entomology, where the practical knowledge is so ninch encnmbered with scientific and other details as to make liie acquisition of it too laborious a process for those M hose time is so fully occupied during that ])eriod when the information is most needed. It has been the aim of the author of this work to bring together all the important facts relating to insects known to be injurious to fruits in all j)arts of (/"anada and the United States, to add to the information thus obtained the knowl- edge he has acquired of the habits and life-history of many of our insect pests by an experience of over twenty years as a fruit-grower and a student of entom(>logy, and to i)re- sent the results in as concise and plain a manner as possible, avoiding all scientific phraseology except such as is iR'cessary to accuracy. The arrangement adopted under the several headings, by which the insect pests which attack the ditlerent parts of the tree or vine under consideration are grouped together, will, it is lioped, with the aid of the illustrations, greatly facilitate the determination of any injurious species. When having before him its history briefiy traced and the remedies which liave been found most useful in subduing it, the reader will at onc(! be enabled to decide as to the best methods to be tiinployed. The author desires to make the fullest acknowledgment to those of whose work he iuus availed himself. The writings of Say, Peck, Harris, Fitch, Clemens, Glover, Walsh, Riley, Lintner, Comstock, Le JJaron, Thomas, French, Packard, < irot riiii KngJ inadl ict'cr tlie \\ I teen I PREFACE. I'nnj? ^ <;r()t(', Lcconto, Horn, Ihiiron, CIkuuIkts, Tloward, Cook, riil.r, (.'ivsson, Feniiild, KcUicott, Wiliet, Jictlmiie, Potiit, K()i;trs, U(H'(1, Flotchor, IIarrin<:;ton, and others liavo hcoii made trihutarv ; and in some instances, where the inseet referred to has not l)een the snhjeet of personal observation, the words of the anthor ch'awn from have to some extent I»een used, modified so as to hrinj; them into harmony with tile general aim of this woric. To the writings of ( '. \\ Rih'v, of Washington, the author is eHj)eeially indebted ; his Missouri Reports and subsecpient entomological reports in <'onneetion with the Department of Agrieiilture at Wasiiington have becii found invtiluable. The material contained in the ehaj)ter on orange insects has been derived mainly from the excellent i'e|)ort of J. II. Comstoek as Entomologist to the U. H. Department of Agrieidture for the year 1880, and from his subseiiuent writings; from a [)aper on tiie parasites which attack scale- insects, by L. (). Howard, in the same report; also from the writings of Townend Glover and C. V. Ililey, from a treatise on oraiig(! insects, by William 11. Ashmead, from a pamphlet on insects injurious to fruit-trees in California, l)y Matthew Cooke, and from the writings of Dr. S. V. Chapin and others in the iirst report of the Board of State Agricul- turid Commissioners of California. To J. A. Lintner, State Entomologist of New York, the author is under much obligation for his kindly aid in revising the nomenclature. An acknowledgment is also due to the following specialists, who have revised lists submitted to them of the names of insects in their de|)artments : Dr. (leorge II. Horn, E. T. Cresson, A. U. (Jrote, P. Uhler, J. 11. Comstoek, iind L. (). Howard. r It El AVE. y ^ / / / / Tliroujjfli the libcralitv of the Council of the Eiitomoloy-ifnl Society of Ontario, permission wjis grar.lcii to liave electro- tvpes made from anv of the cuts in the Society's collection, and from this source a larjje number of fi<;ures have been obtained. Many of these were purchased by the Society froni C. ^'. Ivilev, and some are the work of Worthiny;ton (i Smith, of London, England, and other English and Anieri can engravers. Nos. 21, 22, 31, 93, 102, 104, IIG, 137, 141, 142, \\:^. 1(19, 199, 201, 205, 206, 291, 292, 305, 321, 332, 347, and 348 were purchased from C. V. Riley. Nos. 20, 151, 152, 167, and 208 were kindly loaned by A. S. Forbes, of Normal, Illinois. Through the kind liberality of the Hon. George B. Loring. U. S. Commissioner of Agriculture, permission was granted to obtain electrotyj)es of the following, which have appeared in the Commissioner's reports : Nos. 13, 15, 32, 35, 42, 96, 108, 114, 115, 126, 181, 195, 248, 270, 286, 287, 288, 377, J93, :{94, 400, 403, 404, 406, 407, 408, 409, 410, 411, 412, , 150, 157, 158, 1G2, 176, 177, 82.'), 328, ;J81, 382, ;)83, 384, 385, 380, 387, 388. From B. Wal>li's first report No. 14^^ was copied, No. 55 from one of Cvriis Thomas's reports, No. 187 from a |)lati' |)iihlishc(l l)y W. IT. Edwards; Nos. 427 and 130 were eopieil (reduced in size) from the rej>ort of th' TJ. S. Coai- inissiouer of Agrieidtiire for 1880, Nos. 438 and 130 from a treatise on insects injurious to fruit-trees ;^ California. ! s' Mattliew (Jooke, and Nos. 308, ;>00, 402, 4u5, 415. 41.", 425, and 43V irom a treatise on o-ange insects, by ^^iIIiam II. Ash mead. The remainder have been drawn from nature and eniiiavd for this woi'k eiiiefly by tlie foHowing artists, wlio have also engraved the co{)ies : II. H. Niehol, of Washington ; W'or- tliington G. Smith, of London, Fngland ; H. Fabi r iV' Son, and Crosscup it West, of rhihidel[)hia ; and 1*. J. Edmunds, of Lon(k)n, Ontario. Throughout this work, where an author's name, foHowing the scientiiic name of an insect, is enclosed in parentheses, it is an indication that the antiiority is for the species onlv, and that the genus has been ciianged since the insect was described. This is in accordance with the recommeiidvtion of the Dritish Association made sonic vears ago, antl is now vi'rv gencrallv atlopted. WM. SAUNDERS. London, Ontario, Canada, Ajiril 11, 188:?. mtJM m if Inskcts I ^i to No. '2 Inski'ts 1 ( iih'liiili Inskcts i -'lit mill Inskcts i to No. 'J ].VSKCTS 1 Mo. liUfll Inskctn i: I to No. lii l'- 1 NSKcTs i; i No. L'li-J) ,'t ] NSKCTS 1> ) ] NSKCTS I> OOIS^TEIS^TS. Page Insects iNJuuiors to thk Ai'I'LE (including No. 1 to No. 04) l:'-!;)',* Inskcts inmurious to ihk Pear (including No. 05 to No. 82) HO-lOl Inskcts iN.juurors to thk Plum (including No. 83 to No. 9(i) lO'J I'.n) Inskcts iN.iURior.s to thk PkaiII (including No. 07 to No. 101?) 191-200 Inskcts iN.iriiioLs to tmk Ai'khot and Nkctarink . 200 Inskcts i.nmuhiol's to iiik Cukuiiy (including No. 104 to No. 118) . . L>()1-'J21 In.sects injl'kiol-.s to thk tiriMK (including No. ll'J to No. 121) 222-220 Inskcts in.h itiors to the (Iiiatk (including No. 122 to No. 17:5) 227-;]02 Inskcis iN.iiiuois TO thk Kasphkhry (including No. 171 t.. No. 185) .",();!- :n 7 Inskcts iN.rruiors to thk IJi.ackmkiuiy (including No. 18ti to No. IS'.i) ;!18-320 Inskcts iN.nuiors to the Stkawhkhkv (iniduding No. l',)0 to No. 201 ) :!2; -835 Inskcts iN.nuiors to thk Hkh and White Ckkkant (including No. 202 to No. 215) 330-353 Insects iN.iiKUirs to iiik IJi.ack CruitAN t ( iocluding Nos. 21(1 mid 217) 3.')4-350 iNsKirrs iN.iriuor.s to the (ioosKitKiuiY ^including No. 218 to No. 220) ;i57-300 Inskcis iN.iritiois to thk Melon (including No. 221 to No. 22(1) . . . • 301-308 Insects in.ii'iuois to imk (.'haniikiuiy (including No. 227 t'> Nil. 23.S) ■ . . . 309-370 Insei'Ts iN.M;Riors ro iiik OuANiiE (including No. 239 tn No. 204) 377-422 Insects in.iuriocs to iiik Omvk ( No. 205) .... 423 Insects in.iikiois to the Fui^No. 200) . , , . 424 u -.11 r-3^WWWW mmmmmm ins: Tins tJlO tiMl under l iiili's :ili( ties sori the li'cc llie rooi U|K)11 (' tain in (■())n])an iioilii's ( the :i|)|)( .•'ix time tViMU til tli(> liin( knotted The insc indicate The a j;'ists (u that it ii sucking INSECTS INJURIOUS TO FRUITS. ^1^ INSECTS INJIIIIIOUS TO THE APPLE. ATTACKING THE ROOTS. No. 1. — The Apple-root Plant-louse. Srhlzmuinii htniijiva (TIiuisiii.). Tjiis iiisoci ai^pcai's in two iorins, one of wliicli attacks tJio trunk of the appU'-trci; (see ^so. 9), tlu,' other works undor the j2;roun(l and ])ro(.luces on tlie roots wart-like swell- iiiiis and excrescences of all shapes and si/cs. These deformi- ties seriously diniinish the normal supply of nourishment for the tive, and where very numerous induce i2;radual decay of the I'oots, and o(!casionallv result in the death of the tree. Upon close examination the excrescences arc foinid to con- tain in their crevices very minute pale-yellow lice, often ac- companied by lar<:;cr win>z;cd ones. Tin; former have their bodies covered with a hlnish-white cottony matter, havinj^ the a|)j)earanc(> of mould, the lilamcnts of which are live or six times as lono' as th(; insects themselves, and are secreted tVom tiic upper part of the body, more particularly from the hinder portion of the back. In Fi^'. 1, a represents a knotted root, h a windless louse, and c a winded specimen. The ins(>ets an; both majiiiilied ; the short lines at the sides indicate their natural siw. 'i'he apple-root i)lant-louse is believed by some entomolo- nists to be a native ins(>ct, whiles others hold to the opinion that it has been importetl from luu'op(>. It is nourished by snckinj; the juices of the tree, pi'rcinu; the tender roots with l:; 14 IXSECTS IXJUIilOVS TO THE Al'I'LE. its proboscis. Jn tiie very younn; lice this instrtiinciit, wIhii at rest and folded under the abdomen, is longer than the body, but in the more mature specimens it is only about twd- thirdsthe length nf Fui. 1. the bodv. AVhilc it usually ooniines it- sell' to the roots of trees, it issometinic- found oji tlu! suck- '^:^^j) ers that sj)ring \\\\ around them, and .,7/i — t^ II ^ F -- sometimes a!«n Hs^y / c \ about the stump of an amputated branch, but in every instance it mav be recoy-nized bv the bluish-white cottony matter with which its body is covered. If this cottony covering be forcibly removed, it will be Ibniid that in two or three days the insect will liave again produced sulficient to enveloj) itself completely. Occasionally the ma- ture lice crawl u|) the branches of the trees during the sinii- mer, where they also form colonies, and then are Unown :i> the \\'oolly Aphis of the Apple. This form of the insect will be refiirred to more fidly under Xo. 'J. The appearance of this root-louse is reconled in DowniiiL' - " JEorticultnrist" as early as 1848, at which time thousand- of voung trees were found to be so badiv iid'ested that tiiev had to be destroyed. Since that period it has been gradually but widely disseminated, estal)lishing colonies almost ever\ - where, in the North, South, East, and West. Where a tree i- siclvly from any unknown cause, and no borers can be found sapping its vitals, the presence of this pest may he suspected. In such cases the earth shoidd be r(MUov<'(l from the root- about the surfa<'e, and ihese carefully c.xamined, when, il warty swellings are discovered, no time should be lost in taking steps to destroy the insidious foe. Iiiinc(liet<. — The most successful mean.s yet devised for de- ATTACKING TIIK ROOTS. I') lor (It stroviriir these root-liee is the use of scahliiii!;-h()t wtitcr freelv pDiired aroiiiRl the roots of the trees. If the trees are re- iiiaiiiiiii^ in the .-oil, the roots may be hiitl ban; and the water used nearly boiling without injury; but where they have been taken up for the purpose of transplanting, and arc to be dippi'd in the hot water, the temperature should nut exeeed 150° Fahr. ; under these eireunistanees from 120° to loO" woidil sidliee for the purpose. A nndeh |)laeed amund the tre^s for st)me time previous to treatment has been ibund useful in bringing the liee to the surfaee, where they ean be more readily reaehed by the hot water. Drenehing the I'oots with soa[)suds has also been reeommended, to be followed by a liberal dressing of ashes on the surfaee. There are several i'ricndly inseets whieh prey u[)on the root-louse. A very minute four-winged lly, Aj>hr/iiniK iiudi (see Fig, 15), is |)arasitie on it, and the larva of a small beetle belonging to the Lady-bird family, Sci/mitn.s ecrrlcdflf^, i'vviU on it. This friend is diflieult to re('o' alxHil ^lri|)('s muU'i" siirlacr aiv luiary-wliito, the antciuiie and legs ^-ray. Tlie Icmak's aiv lari^or than the males, and have shorter autennic. The Ixcile makes its appearance dnrinj; the monilis of Juno and .hilv, nsnally remaining in eoncoalment during the day, and heeoming aetive at dusk. The eggs are depositetl late in June and during July, one Vui. :{. i in a |)Ia('(', on the bark of the tree near its base. Within two weeks the young worms are hatched, and at onc(! commence with their shai'p mandibles to gnaw their way through the ()iit<'r bark to the interior. It is generally conceded that tlu; larva is thnu; years in reaching maturity. The young ones lie for ihe first y<>ar in the sa|)-wood and inner bark, excavating Hat, shallow caviti(,'s, about the size of a silver dollar, which aie filled with their sawdust-like eastings. The holes by which tluw enter, being small, 'A\\\ soon iilled up, though not until a few grains of castings have fallen from them. Their pros- tuce may, however, often be detected ii'i young trees tVom the bark becoming dark-colored and sometimes dry and dead enough to (M'a(!k. Through these crai^ks some of the cast- iiiuN generally protrude, and fall to the grouiul in a little liiap ; this takes place es|)ecially in the s|)riug of tin; year, when, with tin; frecpient rains, they become swollen by the absoi'ption of moisture. On the a|»proaeh of winter the larva descends to the low(.'r nart of its burrow, where 18 iysf:cTS INJURIOUS to riri-: aitle. it (loubtk'ss roinaiiis inactive until tiie iollowin*; spriiii:. Dm'ini^ the next season it attains about halt' its growth, still living on the sap-wood, where it does great daniauv. and when, as ot'ten happi'ns, there are several of the^c borers in a single tree, thev will sometimes cause its death by comj)letely girdling it. After another winter's rest, the larva again becomes active, and towards the end of th • following season, when ap[)roaching maturity, it cuts a cylin- drical ])assag(! upwards, varying in length, into the solid wood, afterwards extending it outward to the bark, some- times cutting entirely through the tree, at other times turn- ing back at diiferent angles. The upper part of the cavity is then fdled with a sawdust-like powder, after which the larva turns roiuid and returns to the part nearest the heart of the tree, which portion it enlarges by tearing oil' tlio fibres, with which it carefully and securely closes the lower portion of its gallery, so as to protect it elfectually from the a[)proacli of enemies at either end. Having thus perfected its arrangements, it again turns round so as to have its heail upwards, when it rests from its labors in the interior of the p.isM'.ge until the following spring, when the mature larva sheds it.-" skin and discloses the chrysalis. In this conditinn it I'emains about two or three weeks, when the perfect beetle escapes. At ilrst its bodv and wing-cases arc soft and flabbv, but in a few days they harden, when the beetle makes its way through the sawdust-like; castings in the upj)er end of the jiassage, and cuts with its |)owerful jaws a smooth, round hole through the bark, from which it escapes. 'Hie larvji (Fig. <}, a) is of u whitish (;olor, with a roimd head of a chestiuit-brown, polished and horny, and the jaws black. It has also a yellow horny-looking spot on the first segment behind the head. It is without feet, but moves about in its l)urrows by the alternate contraction and ex- pansion of the segments of its boily. When full grown it is over an inch in length. Tlie color of tlie chrysalis (Fig. 3, b) is lighter tliun that '^ :M 1 m m of the >' th( ■ l)a( ATTACK I SG THE TliUSK. 19 :^ oC the hirva, aiul it lias transverse rows of minute spines on the back, and a few at the extremity of the body. RoimJieti. — The yoiuiii; h\rva, as ah'eady stated, may often be detected by the diseoh)ration of the l)ark. In such in- stances, if the outer (hu'U-colored surfaec; be scraped with a knii'e, hite in August or early in September, so as to expose the clear wiiite bark beneath, the Iurkin whole surface liable to attack, and, if ap|)lied during the iiioniing of a warm day, will dry in a lew hours, and form a tenacious coating, not easily dissolved by rain. The soap solution shoidd be applied early in June, and a second time during the early part of July. ^^ ■'5^ m 20 INSECTS IXJUJilOVS TO THE APPLE. Fig. 4. No. 3. — The Flat-headed Apple-tree Borer. Chrijsohothrisfemiirata (Fabr.). Tilis borcT is also a luitivo of Ainorioa, and is in its in:i- ture state a beetle belonj^ing to the family Biiprcstiche. Ir is a very active creature, one which courts the light of dav and delights to bask in tiie hot sunsiiine, running up and down the bark of a tree with great rapidity, but instantlv taking wing if an attempt be made to capture it. The beetle measures from tliree-ein'hths to half an inch or more in h.'nirtli. (^ee Fig. 4, d, where it is shown somewhat enlarged.) ]t is of a flattish oblong form and of a shining greenish-black color, each of its wing-cases having three raised lines, [ )j: the onter two interrupted by two itn- ])resse(l transvi-rse spots of a brassy color, dividing each wing-cover into three nearly e(pud portions. Tlie under side of the body and the legs ^B» /<( ^^\ shine like burnished copper; the feet /JBkI^ ^^fM' are shining grc-n. JimM'c c This j)est is common almost every- where, aill'cting alike the I'rosty re- gions of the North, the great West. It is nuich more abundant than tlir two-stripeil borer, and is a most formidable enemy to apple- cultiu'e. it attacks also the jjcar, the pliun, and sometiuKs the peach. In the Southwestern States it begins to appeiir during the latter part of May, and is found during most of the summer months ; in the Northern States and Canada its time of api)carance is June and July. It docs not confine its attacks to the base of the tree, but affects the trunk mon; or loss throughout, and sometimes the larger branches. The eggs, which are yellow and irregularly ribbed, arc very small, about one-fiftieth of an inch long, of an ovoidal form, flattened at one end, and are fastened by the female W and the suunv South more s( 1(1 a ehi « nearly iliangc.'' uradnal and in having roams a The grub, w (latteno( swollen riMjuires been de its tran> Heme ill its s Iocs ; bt (lestrov( dialcid [larasite niie of in I'ig. The otl they be tiles kn Alth from th A or tree; ATTACKISG TlIK TJiUXK. 21 TJi M Itli :i iilutinous suh.^taiice, usually uudor the loose scales or witliiii the erac-ks and crevices of the hark; sometimes singly, at other times several in a group. The young larva soon hatches, and, having eateu its way through the outer bark, Ibcds ou the sa[)-\vood within, where, boring broad and flattish channels, a single specimen will sometimes girdle a small tree. As the larva ai)proaches maturity, it usually bores into the more solid wood, working upward, and, when about to dumge to a chrysalis, cuts a passage back again to the outside, eating nearly but not (piite through the bark. Within its retreat it elianges to a chrysalis (Fig. 4, h), which is at first white, but gradually a[)proaches in color to that of the future beetle, and in about three weeks the perfect insect emerges, and, having eaten through the thin covering of bark, escapes and roams at large to continue the work of destruction. The mature larva (Fig. 4, a) is a pale-yellow footless grub, with its anterior end enormously enlarged, round, and flattened. At c in the iigun! the under side of the anterior swollen portion of the body is shown. Whether this larva requires one or two seasons to reach maturity has not yet been determined with certainty, but the opinion prevails that its transformations are completed in a single year. Reined icff. — One might reasonably suppose that this larva in its snug retreat would be safe from the attack of outside foes; but it is hunted and devoured by woodpeckers, and also (lesti'oyed by insect ])arasites. A very small fly, a species of Chalcid, destroys many of the larvfe; besides which tv.'o larger parasites have been bred from them by Prof. C. V. lliley, one of which, Bracon charm lliley, is represented magoified in Fig. 5, the hair-lines at the side showing its natural size. The other s[)ecies, Ci'i/jifus r/raKator Say, is somewhat larger: tliey both belong to that very useful group of four-winged flies known as Ichneumons. Although healthy, well-established trees are not exempt fronj the attacks of this enemy, it is found that sickly trees or trees newly transplanted are more liable to suffer, es- 22 INSECTS INJURIOUS TO T/IE APPLE. Fir.. T). ju'cijilly oil the southwest side, whore the hark is often iir-i injured hy exposure to the sun, resulting in what is culliil sun-scald. All trees should he carefully examined early in tin fall, when the young larva, it' present, may often be detectnj by the discoloration of the bark, which sometimes has a flattened and dried appearance, or by a slight exudation of sap, or In the presence of the sawdust- liUo castings. Whenever such indications are seen, tiie part- shouhl at once be cut into with a knife and the intruder de- stroyed. As a j)reventive me:i>- ure there is nothing better than coating the bark of the trunk and larger branches with a mixture of soft-soaj) and solution of soda, as recommend (d Fid. I-,, for the two-striped borer (^o. 2). No. 4. — The Long^-horned Borer. Leptosf>/lus aculij'er (Say). Although distributed over a wide area, this is by no means a common insect, and seldom appears in sufficient numbers to cause the fruit-grower any uneasiness. The beetle (Fig. 6j i> of rather an elegant form, with long, tapering an- tenna of a gray color, prettily banded with black. It is a little more tl in a third of an inch long, o! a brownish-gray color, with many small, thorn-like points upon its wing-covers. There is also a T- sliaped band, margined with black, a little behind the middle of the wing-cases. The perfect in.sect appears about the last of August, when it occasionally deposits its eggs upon the trunks of apple-trees, which shortly hatch into small grub.s, and the.se eat their way M ATTACK I S(J THE TRUXK. '2:1 tliroiii;li and burrow under the bark, Tliey are very similar in :ij)])earanee to the young' larvte of tlie two-striped borer, but (liller in their hal)its ; tliey tbrni h)ng, narrow, winding (racks under the bark, but upon the outer surface of the wood, which are made broader as the hirva inereases in size. Tliis larva is also Ibund uiuler the bark of oak-trees. Remedies, — Shouhl the inseet at any time j)rove destructive, it< ravasres mav l)e prevented or controlled l)v the use of the alkaline wash applied to the l)ark, as recommended for the two-striped borer (No. 2), deferring its application until the early part of August. No. 5.— The Stag Beetle. Lucanus dama Thunb. This hirge and powerful beetle is a very common insect, belonging to the familv future beetle arc dindy seen, and in due time the mature insect bursts its lilmy covering, crawls through the |)assage previously gnawi'd by the lar\a, and emerges to the light of day. As this bcctli' allects oidy old and decaying trees, it seldom does nuich harm. The use ol' the alkaline wash reconunended for \(). "1 woidd no doubt deter the beetles from depositing their (>gg8 on trees so protected, and thus any mischief tiicy might otherwise do coidd be presented. No. 6.— The Apple-bark Beetle. Mntiiiillninn imili (Filcli). The a|)ple-bark beetle is a small insect aliont one-tenth of an inch long (see l''ig. !l, wlioro it h .sliown much magnified) ; it IS color and : punct or ex t recs, badly to wit loose snuill lui-atK insect coiinn some :f trees ii is yet dillicu I Thi is fou wood ( K ig. ill lei with llioriis eye-!il to the tliora> the b( atoms with side t It is 1 ■ ATTACKING THE TRUNK. 25 it is eyliiulrical in form, smooth and sleiuler, iiiul varies in color from dark cht'stnut-hrown to nearly black. Its le^s and antonnte arc ])alc-yello\visli, and its thorax minutely j)nnctatcd ; the ])osterior end of the body is abrn])tly notched or excavated. The insect bores under the bark of apple- li'ees, sometimes attaekiii}^ young;, thrifty trees, which, when hadly aifeeted, arc apt, soon after ])Utting forth their leavt's, to wither suddenly, as if scorelied by lire; the bark becomes loosened from tlu^ wood, and soon after, these small beetles ap])ear crawling thn)ug'h minute per- ^"" "'■ t'orations in the bark like kirge pin-holes. This '>^f\i-'' insect usually appears in July; it is seldom very -^"y " conunon, but has been reported as destructive in /I some [)arts of jMassachusetts, where many young wiy trees are said to have been ruined by it. So little is yet known of the history and habits of this pest that it is ditlicult to say what would be the best remedy for it. -^^ \ Fiii. 10. No. 7.~The Eyed Elater A/iiifs iiculdlns ( Ljimi.). This is the largest of ou'- Elalers, or " spring-l)eetles," and is found with its larva in tlu! decaying wood of old apple-trees. The beetle ( l''ig. 10) is an inch and a half or more in lenglli, of a dack color, s|)rinkled with numerous whitish dots. ( )ii the thorax there are tno huge \elvety black eye-like spots, which have given origin to llie eoniniou name ol" the insect. Tli(> thorax is about oiie-lliird the length ol' the body, and is powdered with whitish atoms or scales; the wing-cases are ridu'cd with longitudinal lines, Miid the under side of the body and legs thickly |>owdere(i with white, it is found ill (he perfect state ii; June and July. '^iS, 2G JXSEOTS INJURIOUS TO THE APPLE. ^ WV t.l * The matiu'L' larva (Fig. 11), which attains its i'lill growth early in April, is about two and a half inches long, nearly four-tenths of an inch across about the middle, tajjerini^- j^,,,_ J] slightly towards each extremity. The iiend 1 I Lj \t_:^^^ is l)roail, brownish, and rough above ; the jaws very strong, curved, and [lointed ; the terminal seij:- ment of the body l)lackish, roughened with small j)ointed tul)ercles, with a deep semicircular notch at the end, and armed at the sides with small teeth, the two hinilermost of wlii(!li are long, forked, and curved upwarls like hooks; under this hinder segment is a large Heshy foot, furnished behind with little claws, and around the sides with short spines; it has six true legs, — a pair under each of the first three segments. Early in spring the larva easts its skin a, id becomes a chrysalis, and in due time there emerges from il a |)erfect l)eetlc. This l>eetle, when placed u|)()n its back on a Hat surface, lias tlu; power of springing suddenly into the air, and, while moving, turning its body, thus recovering its natural |H)silion. This unusual movement combines with its curious |)romineiit eye-like spots to make it a constant source; of wonder and interest. Since it feeds only on decaying woiid, it scarcely (k'servc- 1<» be classed with destructive insects; vet, bciiiu' occa>ioiially found in the wood of the apple-tree, it is worthy of mention I, ere. No. 8. — The R ugh Osmotlerma. This insect, also, lives in the larval slate in the decaying wood of the apple, as wc;!! as in that of the <'hen'y, , where the insects are represented magnified.) They iii'o often Ibuiul about the base of twigs or suckers springing from the tnmk, and tdso tibout the base of .^.j^.^:, the trunk itself, and around recent "/ • ' /"; ''^ wounds in (he bark. In autumn they 1iv..;, tDinmotdy iillect the axils of the leal- >lallr the; whole nii- ol' the Iriiidv, the tree? looUing as though whitewashed. Thev are said to allecl most those tree, which J 28 INSECTS INJURIOUS TO THE APPLE. Jiiii I* 'i! l-l vit'Id swoet fruit. This woolly-louse is very coiuinon in Europe, especially in Germany, the north of Franee, and Enolantl, where it is more destructive than in this country, and, although gent'rally known there under the name ol' the "American ]iliglit," it is believed to be indigenous to Europe, and to have been originally brought from Eurojie to America. ]t api)ears to thrive only in comparatively cold climates, and in this country occurs in this form most abun- dantly in the New England Slates. Under eacih of the little patches of down there is usually i'onnd one lai'ge female with her yoimg. When fully grown the female is nearly one-tenth of an inch long, oval in form, with bhu'l-c head and fe(;t, dusky legs and anteniuo, and yel- lowish abdomen. She is covered with a white, mealy powder, and has a tuft of white down grow'ing upon the hinder part ol' her back, which is easily detached. During the summer tlu^ j)aren(s ar(> wingless, and the young are produced alive, bin about the middle ol' October, among the wingless specimens, ajjpear a considerable nund)er both of males and females with wings, ami these have but little of the downy std)stance upon their bodies, which are nearly black and ratlu'r plump. The lore Avings are large, and about twice as h)ng as the narrower hind wings. In Fig. 14 the winged insect is re|)i'esented much mng- nified ; also a grouj) of the larvie magnilied, JJ and an apphvtwig, natural si/e, showing one of (he o|)enings in the barkciuised by this insect. The wing('(| I'emales lly from tree to tree to deposit eggs for allot Iwr gen- oration the following spring, — a fact which should liiduee ■J ATTACKING THE BRASCHES. 29 I friilt-growors to take particular pains to dostroy tlioso lico wlK'rcver tbiind, for the colony that is permitted this year to establish itself upon some worthless tree, or on the shoot.s or suckers at its base, will iuruish the winged parents of countless hosts that may establish themselves next year <<;i iIk; choicest trees in the orchard. The insects are extremely iiardv, and will endure a considerable amount of frost, and it is ([uite probable that some of them survive the winter in the l>i'rfect state in the cracks of the bark of the trees. The Ciiti's are so small that thev refiuire a niat:;nifviu<»'-<>lass to enable one to see them, and are deposited in the crevices of the bark at or near the surface of the ground, especially about the base of suckers, where such are permitted to grow. The young, Avheu tirst hatched, are covered with very line down, and appear in the spring of the year like little s[)'X'ks ol' mould on the trees. .Vs the .season advances, and the in- sect increases in si/e, its cottony coating becomes moi'c dis- tinct, the fibres increasing in length and ai)parently issuing tVom all the pores of the skin of the abdomen. This coating is very easily removed, adhering to the fingers when touched. UolJi young and old derive their nourishment from the s;ip of the tree, and the constant punctures they make give rise to warts and excrescences on the l)ark, and openings in it, and, where very ninnerous, the limbs attacked become s'ckly, the leaves turn yellow and drop oil", and sometimes the tree dies. Jicmcdicx, — 'l'h(! very small lour- winged ('halcid (ly, Aitlicl'inuH maU llald., which "s highly magnilied in Tig. 15, and winch has already been referred to under Xo. 1, |)i'(ys also oil this woollv aphis. The ladv- liirds and their larvie, also the larvie of the lace-wing flies and syrphus tlies, feed on all speckles of planl-lice, and are very useful in keei)ing th(>m within bounds. These friuiKlly insects will 1)0 fully treated of under the Apple- Kid. 1-). ^ctrallelinii Nowin. This insect in the larval state occasionally bores into the twigs of apple and plum trees. Tiie beetle (Fig. 20, c) is a little more than half an inch long, of a dull-i)ro\vnish i'olor, closely resembling ^'o. II in appearance and habits, but smaller in si/.e. The egg is laid by the parent insect near the axil of one of the leaf-buds, \vher(3 the yoinig larva, when hatched, bores into the twig, enlarging the chiinnel as it increases in size, iiiially transfornung to a chrysalis within its burrow, and es- caping at maturity in the [)erfect state. In the llgure, a shows the larva, h the twig split open, showing the euclosetl chrysalis, k the end of the twig cut oiV, a the beetle, I the basal joints of the tnitenna, j tlu; tip of th( Fi(i, 20. wing-case, d the head, c maxilla, f labium, (J mandible, and h the an- tenna of the larva. This I'ihiphidion is ratlu-r a rare insect, and, although it may occasionally be found injurious, it is not likely to become so to auv considerable extent. No. 13. — The Apple-twig Borer. .liii])hici'nis birnudaliis (Say). The apple-twig borer is a small cylindrical beetle (Fig. 21), from one-fourth to one-third of an inch in length, of a dark chestnut-brown color above, black beneath. The ibre part ol' its thorax is roughened with nn'nute elevated points, and, 3 ■^ 34 INSECTS INJURIOUS TO THE APPLE. in the maU's, fiirnislicil with two little lionif- ; the male may also be further (listiii<;iiishe(l I'rom the female by its haviiiiz; two small thoni-liUe piojeetioiis from the extrt^mities of the wiiij^-eovers. Unlike most other borers, which i. 22, c and (/.) The holes appear to be made [)artly for the [)urj)()seof obtain- ino; food, and partly to serve as places of concealment for the beetles; they are made by both sexes alike, and the beetles are found in them occasionally in the middle of winter, as well as in the summer, usually wit!i the head downwards. They work throuu^hout tlu; summer months, causini«,' the twiys operated on to wither and their leaves to turn brown. U[)on examination, a perforation about the size of a knittin<;-needlc is found near one of the i)uds from six inches to a loot from the end of the twi*;'. This insect does not often occur in such numbers as to iuHict any material dama_<:;e, but occasionally as many as ten have been found work inn- at once on a two- or three-year-old tree ; they also alfect the twigs of larger trees. The twigs so injured are very liable to break oif wiili high winds. There is uot inu(tii known as yet about the earlier stages o!' this inse(it ; the larva is said to have been found feeding ujxmi j^rajje-canes, into which also tiie beetle occasionally bore~. The beetle is found from Pennsylvania to Mississippi, also in Th ATTACKIXO THE JlRAXCiriJS. 35 the (.••(•liiinls of New Jersey, Micliiii'an, JUinoi.s, Iowa, aixl Kansas. Should it at any time inflict serious injury, llu; (.iilv reniedv as yet su«:;ij;este(l is to searcli for the bored twigs ill June and July, and eut them oil' and hum them. I I Fia. 2;]. No. 14. — The Imbricated Snout-beetle. J'Jpiccerus imbricatus (Say). This is a small snout-beetle or weevil, which is comniou in some loealiti(>s on apple and cherry trees and injures them l»v jj^nawini^ the twigs and iVuit. It is most frequently found in the Western States, especially in parts of Iowa ■Aud Kansas. It is a very variabl(> bceth;; usually it is of a silvery- wliitc color, with dark luark- ings, as shown in Fig. '2'-\, i)ut sometimes these latter are wiiolly or partly wanting. Xothing is as yet known of its history in the earlier stages of its existence. Should this weevil ever occur in suflicient numbers to ex- cite alarm, they could |)robal)ly be collected by jarring the li'ces, as in the case of the plum-weevil, and then destroyed. No. 15. — The Seventeen-year Locust. Ciridlii .scji/cndd-lni Linn. The seventeen-year locust is an insect very well known lliroiighout the United States, and is sometimes met with in ( aiiada. As its name im|)lies, it generally reipiires seventeen years in which to complete its transformations, neai'lv the \\ hole of this period l)eing sj)ent under ground. The perfi'ct insect measures, when its wings an; expanded, iVom two and a half to three inches across. It is represented at c in I'^ig. 24. The body is stout and blackish, the wings 36 I y SECTS ISJURIOUS TO THE APPLE. tnuispaioiit, the tliifk anterior edge ami large veins are orange-red, and near the front margin, towards tiie tip, there is a dusUv, zigzag line resembling a W. The rings of the abdomen are edged witii dull orange, and the legs are of the same hue. The locusts appear in the South earlier than in MM i I' the North ; their usual time is during the latter part of May, and they disappear (>arly in .Tuly. After ])airing, the female deposits her eggs in the twigs of different trees, puncturing and sawing small slits in them, as shown in Fig. 24, d, which she does by means of her sharp beak, which is composed of three portions; the two outer are beset with small teeth like a saw, while the centre one is a spe:i -pointed piercer. Tn these slits she ])laces her eggs. These (e, Fig. 24) are of a pearly-white color, one-twelfth of an incli long, and ta})cr to an obtuse point at each end. They are dej)osited in pairs, side by side, with a j)ortion of woody iibre between them, and placed in the cavity some- what obliquely, so that one end points upwards. When two I! i ATTACKIXG THE BRANCHES. 37 o-os have thus Ik'oh (loposited, the insect withdraws her piercer or 11 moment, and then inserts it again and drops two more egus n a line with tiie first, and so on until she has filled the slit i-oni one end to the other. She then removes to u little (Us- ance and makes another similar nest : it is not uncommon o find from fif"teen to twenty of such fissures in the same limb. The cicada thus passes from limb to limb and from tree to tree until her store of four or five hundred eggs is exhausted, when, worn out by her excessive labors, she dies. The punctured twigs are so weakened by the operations of the insect that they frequently break off Avhen swayed by rough Pwiiids, and the injury thus caused to young fruit-trees in oi'cliards or nurseries is sometimes very serious ; in most in- stances, however, if the trees are vigorous, they eventually recover from their wounds. The eggs hatch in about six weeks or less, the young larva being of a yellowish-white color, and appearing as shown in Fig. 25. It is active and rapid in its movemenis, and slioi'tly after its esca{)e from the egg drops to the ground, and immediately proceeds to bury itself in the soil by means of its l)road and strong fore feet, which are admiral)ly adajjted tor digging. Once under the surface, these larvte attach themselves to the snccident roots of plants and trees, and, ~''- puncturing them with their ^ \.'. >^-. beaks, imbibe the vegetable juices, which form their sole iioiu'ishmcnt. 'J'hey do not usually descend very deej)ly into the ground, but remain where juicy roots .iro most abundant, and the only marked alteration to which they are -iibject during the long period of their existence under groinid is a gradual increase in size. As the time for their transformation approaches, they as- cend towards the surface, making cyluidrical burrows al)out live-eighths of an inch in diameter, often circuitous, seldom 38 INSECTS INJURIOUS TO THE APPLE. M I ,1 /; Fig. 2G. ^fF\ exnc'tly i)ci-pciKli('iilar, and those are firmly cemented and vurnisjieti so as to be \vater-tit;!it. A.s the in.sect proj^resses, the cliamber is tiihid below by the earthy matter removed in its progress, but the upper portion, to the extent of six or eight inches, is empty, and serves as a dwell- ing-place tor the insecit until tlie [)eriod for its exit arrives. Here it remains tor some days, ascending to the top of the hole in line weather for warmth and air, and occasionally looking out as if (o reconnoitre, but descending again on the _. Occurrence of cold or wet weather. In locali- ties that are low or im- perfectly drained, the insects sometimes continue their galleries from four to six inches above ground, as shown in Fig. 20, leaving a [)la('e of egirss at the surface, c, and in the npj)er end of these dry chambers the pupjc patiently await the time lor (heir next change. This ])eriod, although an active one, is the pupal stage of the insects' existence, and finally, when fidly matured, they issue from the giound (see a, Fig. 21), crawl uj) the trunk of a tree or any other object to which they can attach them- selves securely by their claws, and, having ri^sted awhile, j)reparc to cast their skins. After some struggling, a longi- tudinal I'cnt is made on the back, and through this the en- closed cicada pushes its liead, and then gradually withdraws itself, leaving the (Hupty pupa skin adhering, as shown at b in Fig. 21. The esca|u' from the |>upa usually occurs between six and nine in the ev(>ning, and about ten minutes are occupied by the insect in entirely iVeehig itself from the enclosiii'c. ,\t ««■ tlicv ll >j'!^^^l <$!HH l;i>l< )( '*^^^l iiiu.-i<'; '«i wings, v^8 very l; 'M whicli ,Jb trees a 1 iiijiu'c ^mm Ap 'Im^B these IB handle ^B tliat 1 ^m As ilu ^B sii)le tl H^ lliere !• 1 iVuin 1 ATTACKIXG THE li RANCHES. .".9 tlic boJy is soft and wliito, excepting a black |»atcli on bacU, and the wings arc small and soft, but within an are fully devclo|)ed, and before morning the niatuic cts are ready for iiiglit. They sometimes issue from the lind in immense numbers; above fifteen hundred have known to arise beneath a single a|)[)le-tree, and in some tt- the whole surface of the soil )ias, by their operiiLon.s, ilpared almost as full of holes as a honej'-conib. teiiiedic.^. — On escaping from the ground, they are attacked /arious enemies. Jiirds and j)redaceous insects devour itfti ; hogs and poultry feed on them greedily; and in the %g<'d state! they are also subject to the attacks of parasites. It 00i^ that human agency can eflect but little in the way of stay- ing the progress ot these invaders, and the only tinie when anv- I tiling can be done is early in the morning, when the wing(,'d insects newly escaped and in a comparatively feeble and hcl[)- Ic-s condition may be crushed and destroyed ; but when onc^e they have ac(piired their full power of wing, it is a hopeless ta.-k to attempt to arrest their course. The .nales have a iimsical appai'atus ou each side of the body ju.'-t behind (he wings, which acts like a pair of kettle-drums, producing a very louil, shrill sound. Although partial to (ndv-trees, on which tiny most abound, they are veiy destructive" to other frees and shrubs, and frc(juently injure appki-trees. A nopular idea prevails that AC'l^-'i, these insects are dangerous to '^' IVvT: v),i^ handle, that they sting, and that their sling is venontous. As (heir beaks {a, Fig. 27) are sliarp and .strong, U is p- - sible that under provocation fliey may insert the.s<', but, since there is no poison-gland attached, there is little moi'c to fear tVnm their punctiu'c than iVom the piercing (if a needle. 1 1 40 jySECTS INJVlilOLS TO THE APPLK. \i •M. 28. No. io.- -The Oyster-shell Bark-louse. M;itil(tsitls piDitoniiji l)Oii(.'li('>. This is a very dcsti'iictive niul [/Pniicioiis insect, which pi-c- vails tliroiiiijhout the Xorthcni United States and Canada, and in some of the S(nuh(;rn States also. It was ii>trodne( J iiv;;, Eni-o|)e more than ei;ularly, most of th(iii lenixthu'ise of the limb or twii;', with the smallr end n|)wards. In sonu; instances the branches of apple-trees may be fonnd literally covered and crowded with these sca'es; and where thns so prevalent they seriously impair the health and vieor of the tree, and sometimes cause its death. Under each of these scaks will be found a mass of eii'i>s varvii! V in nund)t'r I'roin liftecn oc twenty to one luindred or more; these ilurin<>,' (he winter or early s|)rinj»; will be fonnnally occurs late in !May or early in June, and, if the weather is coid, the yonnj: lice will remain several days undi'r the scales befor(> dis- j)crsinji; over the ti'cc. As it becomes warmer, they leave thch- shelter, and niay be seen rimniuii' all over the twins looking for suitable liycations to which to attach thems(d\('s. 'I'hc\ then, under a maun ilyinn-ii lass, present the ap|)caranc(! shown at li, I'^ii;. lil), their actual lcn<;'th bcin- n)crc specks. A lar!j;(> proportion of them soon become fixt-d around the base of the sith'-shootsof the leiMuinal (wiii's, wheic, inserting their tiny sliar[> beaks, they sid)sist upon the sap of ■I .■I 1 the i-.-iK at;} and delac and ATTACKING THE BRANCHES. 41 the tree. In a lew duvs a fringe of delicate waxy threads issues from their bodies, wlieii they liavo the appearance shown .,t a. Grathially tlie insect assumes the form shown at A ; o and () represent the h)use as it approaches maturity, and when (lel;tched from the scale; 1 shows tiie egg higidy magnilied ; ami 8 one of the antennae of the young lice, also much enlarged, j'.cforc the K)\\(\ of the season the louse has secreted lor itself rx^ '¥'S. A -IvK the scfily covering shown at 7, in which it lives and matiu'cs. Tlio scale is ligui'ed as it appears from the under side when raised and with the louse in it. liy the nnddle of August this female louse has become little else than a hag of eggs, and (he process of depositing these now hegins, tlu^ body of (ho j)ari'ut shrinking day by day, until finally, when this work is coDipIcted, it becfo'Mcs a mere atom at the narrow end el t!»e scale, and is scarcely Moliceable. 'VUi' sei'es of the male louse are seldom seen ; they are luu'^l iV<'(|ueJUi/ found upon the leaves, both on the upper and ui\dor rides; they are smaller in si/e than those of the female, and did'ereni als(y in sha;ie. The male scale is shown at (', b'ig. 150, in which -ut is also rc|)resent(!d the male insect, uuieh magiufied, with wings closed and expanded. Only one brood is produced anmially in the North, the eggs remaining unchanged un(l(>r the scale lor about nine luunths ; but in some parts of the South the insoct is double- 42 jysKCTS INJLRIOI'S TO THE APPLE. brooiled, the iirst brood hatching in May, llie .second in September. As the oy.stor-shell bark-louse retains power of motion only for a few days at most after hatching, it is mainly disseminated to distant [)lac! .5 by thedistril)ution of young trees from infe.^tid nurseries. In the orchard and its immediate neighl)orlu)od il may be s[)read by being carried on the feet of birds, or attadud \% to the larger insects, or may be aided by the wind in j)assing from tree to tree, while it is itself so brisk in its active state that it can travel two or three inches in a minute, and hence tniglit in this way reach a ])oiiit two or three rods distant be- fore it would perish. Although this insect essentially belongs to the ap])le-tr(H\ it is frequently Ibiind on the pear, an(f sometimes on the plum and the currant-bush. l!ciiic(Jics, — -A species of mile (r'"ig. JH), Ti/rn(/li/p}iii.^ iiKihi^i (Sliimeri, preys on the l()us(> as well as on its eggs: and (his mile, so insignillcant that it can scarcely be seen wiiiioul a magnifviug-glass, has ])robably done more to k(H'p this or- chai'd-pcst within boinids than any other thing. Under the scales may sometimes be fomid a small active larva devouring the ogy are lendci" and easily killed. With this obju't in view, the time of hatching of the I'cnmants left after the winter or s|)i'ing scraj)ing should be watcluM', and, while the young larvie are active, the twigs should be brushed with a strong solution of soft-soap and washing-soda, as i( m- iiieiidcd imder No. 2, or syringed with a solution of wash- iii^';-soda in water, maile by dissolving half a pound or more 1 1 1 ! I M u JXSECTS INJURIOUS TO THE APPLE. ill :i paill'iil. Painting the twigs and branches with lin,-(((l oil has also been tried with success. As a [)recautionary measure, every young tree should bo carefully examined before being planted, and if found infcshd should be thorouii'hlv cleansed. W No. 17.— The Scurfy Bark-louse. Chionaspis fiu'J'iirus (Fitch). This insect, which has long been known under the name of Harris's Bark-louse, Anpidlotu>< Ilcwrisii Walsh, is now fouml to have been first described by Dr. Fitch, and hence nuist in future bear the name given to it by him. It resembles in sonic respects the oyster-shell bark-louse, yet is sufficiently dissimilar to be readily distinguished from it. In this species the scale of the f'"tv.i]e, which is by far the most abundant, is obldiiji' in form, pointed below, very flat, of a grayish-white coloi-, and aboi t one ^enth of an inch long. (See Fig. 35, 1 and 1 c; ihe latter represents a scale highly magnified.) The eg«is unut th(! same date as the other, but the larvic are red or rcdtlish brown in color. This insect does not mature so rapidly as the oyster-shell species; the eggs are said not to Ik; fully developed under the scale until the middle ol' September. Tlu> scale of the male, which is very much smaller and narrower, and not more than one-thir- tieth of an inch long, is shown in the figure, magnified, at 1 beiiiLi, on the bark of our native crab-trees. In the warmer pari- of the South it is more common than the oyster-shell bark- louse. It is found cliiedy on the apple, but sometimes alllx'S the |)ear and also the mountain-ash. It is lar Ies8 common than the imjioi'tcd oyster-shell bark-louse, and is nowhere anything like so injurious as that insect. fe ATTACKING THE BRAXCIIES. 45 Remedies. — Tlie scurfy bark-louse is saitl to be preyed upon by the same miles wliich attack the oyster-shell species; it is Fiu. 35. also (levonred by the larva of the twice-stabbed Uiay-bird. ,fe The same artificial lemeilics should be used in this instance ra. Tt is an active iiun|)injj creature, about one-tiiird oC an inch lont;- (Fi,i];. '^0), of a liju'ht ^"rass-i;reen coloi-, with, whitish dots and u pale- ^■ 43 ISSECTH INJURIOUS TO THE APPLE. Fid ;!i;. yellowish streak alonsi; each side. On the I'ront there i.> a shar|) process or [)oint jiittiiii^ out hori/ontally on cai ii side, reniindini;; one of the horns of a hull or hutlalo, which has g-iven to the insect its common name of bnt!alo tree- hopper. It> body is three-sided, not nnliUe a beeeh-nut in form, and it is furnished with a sharp- /l^HN T pointed beak, with which it i)unctures the J f^wh > bark and sucks the sap from the trees. •^ It is common on ai)[)le and many other trees from July until the end of the season. The eutis are said to be laid in rows, in n series of punctures made by the ovipositor of the female; and the youni; larvie, which are g"rass-<2,ieen like their parent-, feed also on the saj) of the leaves and twij^s. Jn the larval state, before the power of ^\i^\\t is acquired, the iuscct is easily cau_i>;ht and destroyed; but it is not easy to suggest a remeily for so active a creature as the perfcci insect is. It cainiot be killed by any poisonous application, as it feeds oidy on sap. It has been suggested that where they are so numerous as to injure fruit-trees they may Ixi I'rightened away by frequently shaking the trees, as they are very shy and timorous. It is, however, scarcely probable that this insect will ever become a source of mucli annoyance to the fruit-iirowei'. No. 19. — The Thorn-bush Tree-hopper. Fid. 37. with Theliii rni/ are pectinate, or feather-like, and slightly so in the reinale (Fig. oH). When fully expanded, the wings of the li'iiiale will measure an inch and a half or more across; the male is smaUer. The hollow tongue or tidui by which mo lis and butterHies imbibe "their Ibod is entirely wanting in this s|)e('ies; iience it has no power of taking food, and lives but a very few days in the winged state, merely long enough lo n 48 ixsKCTs ixjuiuors TO Tin-: apple. if provide for a future ueneration bv the (loi)o.sitioii of ymu Tlie moth remains at rest and concealed durint:; tlic day, but ix'comes very active at nicrht, when it enters liiihted ronnn attracted by tlie t^lare, and becomes so dazzled and bewild ivi, that it darts crazily about, here and there, tinimping it-clf against the walls, furniture, and Hoor of the room in tli^ most erratic; manner, then circles around the lamp or gas-li^lit with great velocity, finally dashing into the flame, wlien, wiih wings and antennto severely singed, it retreats into some nh- scure corner, 11 c moths are most abundant during the Tum two weeks in July. Tlic eggs are deposited during that month upnn Fir;. 40. ilie smaller twigs of our fruit-trees in ring-like clus- ters, each composed of from fifteen to twenty rows, containing in all from two to three hundred. Tlic eggs are conical and about one-twentieth of an indi long, firndy cemented together, and coated with a tough varnish, im|)ervious to rain, the clusters pn- senting the appearance shown in Fig. 40. In h'iu, 41, at c, a similar chister is shown with the gun imv covering; removed, showini; the manner in which ilic eggs are arranged. The voung larva^ ai'(^ fidlv matured in the eo;*' before winter comes, and they remain in this enclosing! in a torj)id state throughout the cold weather, hatching during the first warm days of spring. They usually appear during I lie last week in April or early in iNFay. depending much on the ])revailing temperature. Their first meal is nade of poi- tions of the gummy material with which the egg-masses aiv covered, and with tlie strength thus gained they proceed ;ir once to work. At this time the bnds are bursting, thus pio- viding these young larva3 with an abundance of suitable ten(l( r food. It sometimes haj)j)ens, however, that after tliey uw hatched cold weather returns and vegetable growth is tempo- rarily arrested. To meet this emergency they have tlie ])ower of sustaining hunger for a considerable time, and will usually live but s( iiMihii l;ir\a' ai'i'oss (lay, but I r()nni< in tlic as-Iiti-lit -'11, with )m(' (il)- 1k' lir.-t I upon - the m the r por- es MIV L'cd ;ir s pi'ii- oiKhr y WW inipo- )o\v('r luillv f ATTACKING THE LKAVES. 49 live from ten to twelve (lays when wholly dejirivetl of food ; I, lit severe Crost is fatal to them in this tender condition, and iiiuhitiides of them sometimes ])erish from this eauso. These larvje are tent-muUers, and soon after birth they heirin to eon- strnet for themselves a shelter by extendini;- sheets of web ;i<'ross the nearest fork of the twij^ upon which they were Fig. 41. hatched. As they increase in size, they construct additional layers of silk over tho.so ]>revionsly made, attachin*^ them to (lie neiiihborinii' twigs, and leaving between the layers «; '"o enough for the caterpillars to pass. The tent or nest v. •; ti completed is iri'egnlar in form, abont eight or ten inches in diameter, and the holes through which the caterpillars enter a.-e situated near the extremities c angles of the nest, and into this they retreat at night or in stormy weather, also at other ■i I 'ii h\SECTS L\JURIOiS TO THE APPLE. times wbon not f'eedinj^. In five or six weeks they beeoiue i'lill thrown, Jiiul then measure about an inen and tliree-fjuartcrs ill leni!;tli, and j)resent tlie a))|)('arance shown iii Fit;. 41. 'ilie l)(Hly is hairv and black, with a white stripe down the back, and on eacii side of this central stripe there are a number of sliort, irregidar, h>ngitiidinal veHow Hues. On the si- paler lines, with spots and streaks of ])ale blue. The ....tiir side of the body is nearly black. These caterpillars have regular times for feeding, issnln- from the o})enings in their tent in processional order, nsuallv once in tlie forenoon and once in the afternoon. I.i verv warm weather they sometimes repose upon the outside of the nest, literally covering it and making it aj)pear quite black with their bodiei^. They are very voracious, and devour the leaves of the trees they are on with great rapidity; it is esti- mated that each larva when approaching maturity will con- sume two leaves in a day, so that every day that a nest of such marauders is j)erniitted to remain on a tree ihere is a sa'" 'o of about five hunch'cd leaves. Where there happen several nests on one tree, or if the tree itself is small, they ofti'u strij) every vestige of foliage from it, and in neglected orchards the tret's are sometimes seen as bare of leaves in June as they are iu midwinter. As the caterpillars arrive al matiu'ity they leave the trees and wander about in all direc- tions in search of suitable ])laees in which to hide during their chrysalis stage. A favorite place is the angle formed by the projection of the cap-l)v)ards of fences or fenec-i)Osts. I Fere they construct oblong oval cocoons (Fig. 41, d) of a yellow color, formed of a double web, the outer one loosely woven and slight in texture, the inner one tough "ud thick. In its construction the silk is mixed with a pasty substance, which, when dry, becomes powdery and resend)les sulphur in appearance. Within these cocoons the larva:; change to brown ehrysalids, from which, in about two or three weeks, the moths escaj)e. This insect feeds on many different trees, but is particularly fond of the apple and wild I'herry. I >-(iinc, within .\.M-,:>' l;,tc ll" With in:iy 1 toi-n t i- not liunc c;isily tended times \ will l»e partly 11 lili ATTACK IS a THE LEAVES. 61 .kIi r •t j-^;:«| Bcmedles. — Since the tciit-catorpillar is so easily detected |)v its eoMspieiious nest, it need never l)eeoine very trouble- some, as the larvie may be easily destroyed while slK'lteriiit at hand, the nests may be removed by a pole with a bunch of ra^s tied around the end of it. This work is most casilv done while the larvjc are younii', and should be at- tended to as soon as the cobweb-like nests can be seen. .Somc- liiiics when the nest is destroyed a porti(»n of the caterpillais will l>e absent feeding, and within a few days it may be fotiml partlv repaired, with the remnants of tlie host within it : so that to subdue them entirely repeated visii- to the orchard >hnul(l be made, and not a fragment of a nest permitted to lemain. Governments might well enforce under [)enalties the (lest ruction of these caterpillars, as their nests are so conspic- uiiii- that there can be no excuse for neglecting to destroy them, and it is unfair that a careful and vigilant fruit-grower sliduld be compelled to sulfer from year to year from the nei;lect of a careless or indolent neighbor. Neglected trees are soon stripped of their leaves, and become prematurely exhausted by having to rei)roduce at an unseasonable time , their lost foliage; with fruit-trees this is so great a tax on i their vital powers that they usually bear little or no fruit the ' following season. The cig-clusters may be sought for and \ destroyed during the winter months, when, the trees being leafless, a practised eye will readily detect them. A doudy (lay should be selected for this purpose, to avoid the incon- venience of too nuich glare from the sky. Several j)arasites attack this insect. A minute Ichneumon fly, about onc-twenty-tifth of an inch in length, is parasitic on the eggs. By means of a long ovipo.^'.^)r it bores through H ■'>■" 52 INSKCTS LXJlIx'/Oi'S TO THK AI'PLK Vu:. A-2. tlio (inter L''umniy covsriii^" mikI ogi>--sliell, and (lepo.'.Its its ( L;i,'s within (lie oi>g of the tciit-caterpillar, wlicro tlic y()nn<;' ii .s\i//rii!ii'i' Iliii'ris. This insect closely I'csemUIes t!ie connnon (I'nI-caterpillar. Xo. 20. The moth (A, I'^ig. I.')) is of a similar color, hiii pidei", or moi'c yellowish. The space oetween the twoohliipic lines is usually darker than the rest of the wing, and the lines thems(!lves aiH! dark hrown instead of whitish. In tli" figure, (I repH'sents (he (\go-clus(er, c one of the eggs, nuK'h enlarged, as seen from the (op, 'J a side-view of (he same. The egL:>< of ihis species may he disiinguished by their almost ur.il'orm diiu'ieter and by their being cut olV s(piarely at each ( ud. Th" number of eggs in each cluster is usually ATTACK! S'i THE LHAVEK. ry,\ Vu;. [:\. fVoin three tc fndi' Imndred ; they are whife, about onc-twenty- jil'th of an Inch louu", and oiie-lortieth wide, rounded at the l.ase, ji'i-athially eidari>- iiin' towards the apex, wheic they are iiiar- :^iiii'(l l»y a proiiiineiit lini.aud ha\H'a suidvcu >|i((l in the centre. The (MM, are (k'posiled in cireies, and wi > eae!i CO W eiic is seerefe l)ee(»nie fully Inrined in the cliiis before winlt'r, and remain within them in ;i torpid condition until sprinji'. The lar\a^ in this instance also hatch about the time of the hnr-iiiii:' (if the buds, and in the absence of food are endowed wiili -iinilar powers of endurance. It is said they have been kinwii to sur\ive a fust of three weeks' duraliv)n. While vnuiiu', ihev >pin a slight web or tent auainst the side of the trunk or branches of the (r<'e on whieh they are situated, but, Irniii its pecidiar color )r sliiiht texture, it is seldom noticed. Ill diis early sta^'c they often manifest slrann'e processionary liabils, mai'chiiiii; about in sin(;le or double eolunni, oi .' larva Ml iiiiiiiediately following; anothei" that when thus erossin<2,' a si(|e\^alk or othci' smooth siu'face they a|>pear at a little dis- tance like black streaks or pieces of black c!ord stretched iieros- it. l"'rom the liiiK! they are half };'ro\vn, until they ajipi'oaeh iiiaturily, they seem to have a j^rcat fondness Ibr exercise, and deliuht (o travel in rows aloui;' fcnee-boiU'ds, wliieh they do at a very brisk pace when in search of food. Ill about six weeks this larva becomes lull e'rown ( b'i<:'. I 1 1, and is then an inch and a Ik'.II' or more in lenu'th, of a miOti o4 I.XSKCTS I.XJURIUiS TD THE A/'l'LK. V\i.. 4t. |):il('-l)liiisli color, s|)riiikI(Ml all over with black j)oints jiml (lots. On the ba(!k is a row ol' (en or ele\H!n oval or (lianioinU sliaped white spots, hy wliii'h it may he :it onee (listint^nish species of forest-trees, such as oak, thorn, ash, l)asswo(ul, beech. j)linn, cherry, walimt, hickory, etc., and sometimes lai'i:i' clinn|)s of woo(her. Within siicli an enclosure there; is };'en»'rally one cocoon, but in times of p;reat abundance, iuid where the eii- closuri' is lai'iic enout;"ii, there; a''e ol'iei; (wo or three coe(M)ii> toi;'ei!ier. At such periods almost esciy hif or fra^nieut ol a leaf is so occupied, and, the whitish-yellow cocoons beinii' (»nly |)ar(ly hidden, and the leaves hangiui;' willi their weinhi. one is impressed with the idea that the: tree is laden wiili sonic ^SHJI , 1 T'l\ 1 CKL\ G THE L KA I ' ES. .JO t Fia. 4-j. st[-ani!;e sort of iViiit. If leave:s ivinnot be had I'or >lielter, llio oicnoii^ will 1k' t'oiiiKi uiidor tlio bark of trees, in every siiit- .,1,1,. ci'eviee or hid" i;';-i)laoo in j'cncc-, or under Iol'-. In two ,ir three day.s the enek).-;ed larva ,'li;ui^e.s to 11 ehry.salis of a red- (li-.li-l)ro\vn color, densely clothed with short pale-yellowish hair, and in the eoiir.se of two or three wrrksthe tnoth appears, which, like the in-tct last described, No. i^t), is nocturnal in its habits, :iii liul a lew days, \vhen, Ii;i\ 111^' provided i'or tl\e contin- uance of its .species, it jjerishes. lidtH'd'HK. — The e_i!;n'-cluster.s >ln)uld be sou;i,ht for and de- ~t roved durino- the winter inouilis. When the caterpillars nr(! yomiii', they will dro[), stis- |ieii(icd by a silken thread, in Miiil-air, if the bnuich on which I hey ai'c fc'dint;' be su(kleidy -I ruck ; advantaii'c may i)e taken (if this lialtil, and by swinu'ini; a stick around, the threads may lie eatheri'd in with the larvjc attached to them. When the caterpillars iiave become half 5ji;rown, the trees shoidd be tre(piently ins|)ected, early in the mornine', ;uid the conn;rcoalcil masses crusheil and deslroyi'd with a stilV broom or some other (Mpially suitable; implement. Diiriui;' the day they are so constantly on the move, that a youn^' tree lhoroiii>hly cleansed from them in the morning!; may be crowded ayain helbre evcninii'. To iivoid the nece-sily of constant watch- iiii:, strips of cotton biittiiiii', three or four inches wide, HJioiild be tied around the tree about hali'-\v«y up the trunk; thesis A 56 LXSECTS I.yjUJilOUS TO THE Al'I'LE. IkuuIs should 1)0 tied ti<2;litly in the middlo. Kacli caterpillar is f'urnislu'd wit'i (bur pairs of Hesliy prologs, wliicli nic fViiit>;od with s'.iiail horny iiooks, and on the insect's tryiii"- to [)ass over the coUon these hooks g-et so entangled in tliu fibres that I'ni'lher progress becomes very difficult, and is .seldom persisted in. A shower of rain will pack the fibres of the cotton somewhat, but where the string fastening it !> tied around (he middle, tiic upper iialf washes down and makes a sort of roof overhanging the lower portion, which in great measure |)rotects it from tlie weather. These larvje are seldom abun- dant for manv years in succession. for in tinu's of great pk'iity their natural enemies multiply with X| amazing rapidity, yevoral jiar- asites destroy them. Two species of Ichnemnon Hies prey on them, also a two-winged Tachina fly, closely resend)ling the lied-tailed 'Jachina fly, Xinionra fcKctaiin' (Kirkp.) (l''ig. IG), which attacks the army-worm, but this fly is wiilmut the red tail. Fi(i. 47. !l Fid. IS. A s|)ecies i){' bug (iremiptcra) attacks (he larvic just when tiiey are eoiisl i ucting their cocoons, and sucks them empiv, ATTACKIXG THE LEAVES. 57 Fio. lit. wliilc some of tlie insect-feeding birds devour tliein ii'rcodily, c-niriallv the black-billed cuckoo. Thei'e are several species di' ni'edaceoiis insects belonii'ini; to the (Urnh'uhv, or ground- hecilcs, which are very acti\-e in their habits, ;ind diligently limit for them and eat them, notably the Green Caterpillar- jimiter, (\ff<).s will usually lie Ibiiiid to contain a giay cocoon, with in most instances a mass of eggs fastened to it. ( )n breaking into this mass, which is brittle, it will be found to include lV(»m three hun- ;ray cocoon, tlie f'ornier abode of the female which deposited them. About the nucUlle of May the eji'tis liatch, when tiie yoiiii;^^ larvJU at <»nce j)n)ceed to devour the; leaves of the tree on wiiich thiy are jjlaced, when distmbed letting themselves down by a silken thread, remaining suspended until danticr is past, when they climb up the thread and regain their former position. When mature, they are very handsome, and present the appearance shown in Fig. oO, arc more than Fig. 00. on II w lie cater ing lurni ;less, or provided with the merest rudiments of winoj.s; her body is of a light-<;ray color, of an Fi.i. .M. V\i\. .-,;]. obloiig'-oval form, with rather lonj^ Icos^ and is distended with eijgs; indeed, she is more like an animated bni; of e<:;y;s than anythiuij,' else. (See Fi<>'. o2, where she is represented attached to the empty eoeoon from which she has escaped.) After her escape, she patiently waits the attendaiUH; of the male, and then lu^nins to place her etj;<«s on the outside of her own cocoon, fastening- them tjiere in the manner already described. During this |)rocess her body contracts very nnich, ;md soon after her work is linished she dro|)s down to th(! groiuul and dies. The niide moth (I*"'ig. oo) is of an ashen-gray color, llie fori! wings being crosst'd by wavy bands of a darker shade ; I here is a small black' s|)ot on the outer edge near the ti|), an obli(|ne blackish stripi^ beyond it, and a nunute white; ei'csccn* near the outer hind angle. The body is gray, with \\ smtdl black tuft near the base of the abdomen. The wiiigH, when expaixled, measure about an inch and a tpiarter across. I"l 60 jySKCTS IXJi'/i/OCS TO TIIK APPLE. Since the i'einale i.s wingless, and invariably attaches her eggs to the ()ut>i(le of her own cocoon, the insect can onlv spread by the wanderings of the ca.ter|)i liars, or the careless introduction of eggs on young trees, A'o doubt the latter has been the most ])rolilic source of mischief. Although not usually very injurious, it becomes at tinies a perfect pe>i to the fruit-grower, stripi)ing the trees almost bare of leaves and disliii'uring the fruit bv gnawing its surface. While very partial to the ajtple, it attacks also the plum and pear, and is said to feed occasionally on the elm, majjle, horse-chest- nut, and oak. Rvuu'dlvK. — riie increase of this insect may be easily pre- vented by collecting and destroying the eggs during the win- ter months. In gathering the cocoons, all those having no egg-masses attached should be left, as they contain either the empty chrysalids of the male or the chrysalids of j)arasites. Nine dilVerent species of files, four-winged and two-winge(l, are known to be parasitic on this insect in the catei'pillar state No. 23. — The Yellow necked Apple-tree Caterpillar. Jhitdiiii iiiiiiislrd (Driiry). The motl' of this species was first described by Mr. Drury, an eminent Engli>h entomologist, in 177-'), from s|)i'cimens received by him from \ew York, it measures, when its wings are expanded, about two inches across (>t'e l^'ig. T)!), and is of a light-brown color, with the head and a large; spot on the thorax chcstiuit-brown. On the fore wings there; are from tlii'ce to five transverse brown lines, oiu; or two sj)ots near ilie middle (sometimes wanting), and the outer margin also of the same color. The hind wings ar(> pale yellow, without markings. When in reposi-, tla; hinder |)art of its liodv lllnti i '% <^l: C J ',4 A TTA CKL\G Til /•; L K. I I ES. 61 |)()(lv is raised up, :iiul the tore lei:;s stretcluul out. The iiKiths aj)|)(';ir iVoiii the ini(hlle of Juno until the end ol'July. i-]i(|i rciiiulc deposits lier stock of eggs in ;i single cluster (if fidiii .-eventv to one hun(h'ed in number. Tiiey are white, loiuid, less than one-thirtii'th of an* inch in diameter, placed ,-i(le l)V side in nearly straight rows, and firmly cemented to each othei', as well as to the surface of the leaf on which they are placed. Those first laid begin to hatch during the third week in Julv, while others ar(! three or four weeks later, so that some broods are neui full grown, while others are small and but a few days old. The young larvic eat only the under side and pulpy i)art of the leaves, leaving the veins and upj)er side untouched, but as tluy increase in size and strength they devour the whole of the leaf except the stem. When young they are brown, striped with white, but as they mature they i)ecome darker in enlor, with yellow stripes ; they attain their fidl growth in al)itiil five or six weeks, when they are about two inches long. The head is large and black, the next seginent, sometimes called the neck, of a dull orange color, a black stripe ex- tending down the back, and three stripes of the sanu! color alteiuating with ibur yellow stripes on each side. The body i> tliirdy clothed with long, soft, whitish hairs. The larv;e are invariably found clustered closely together on a limb, on \rliieh, beginning with the tender leaves at the extremity, they gradually devour all before them, leaving the braiKfh {)er- I'tctly bai'e. Its leafless condition soon attracts attention, and on examination it is found to bo loaded with those catcrpil- lai's crowded together. The position tlu'V tissume wl'.en at rest is very odd, and is well shown in Fig. 55 ; both ex- tremities are raised, tlit; body being bent, and resting otdy on the four middle pairs of legs. If touched or tilarmed, tluy throw u|) their heads and tails with a jerk, at the same; time bending the body until the two extremities almost meet over the bacik j they also jerk their heads from side to side. They all eut together, crowded u[)on the under surface of g| 62 hXSECTS h\ J Villous TO THE Al^PLE. the leavos, alon<^ tlio inargius of which appears a row of sliiniiig black heatls, witli each nioiitli busily engaged in di- vouring the portion near it, and when the meal is finished they arrauLrc themselves side by side along th • branches which they have strippeil. If one branch does not afford food enough, they attack another; and when full grown and ready to tran>- form, they nearly all leave the tree at the same time, descending by night to the ground, where they burrow- under the surface to the dej)th of from two to four inches, and after a time cast their caterpillar skins and become naked, brown chrysalids. They remain in the pupa stat(> until the following July, when iiie moths escape and takt' wing. Although sometimes very abundant and destructive, this insect is not usually very common ; some years a few clusters may be seen, and then several seasons may pass before they are met with again. The nakedness of the lind)s they attack soon attracts attentiv,.i, when the larva? may be easily de- stroyed by crushing them on the tree, or by cutting off the branches and throwing them into the fire. A small Ichneu- mon parasite is known to |)rey on them, which may in some measure account for th(> irregularity of their appearance. f No. 24. — The Red-humped Apple-tree Caterpillar. r (Edcma.sia coiiriiuia (Siii. & A1>1).). This insect very much resembles in habits the yellow- necked a|>|)le-trec caterpillar (No. 23). The moth (Fig. 50) a[)j)ears about the last of June. Tlu- fore wings are dark brown on the inner, and grayish on tlic outer mai'gin, with a dot near the middle, a spot near eacii angle, and several longitudinal streaks along the liiud mai'gin, all dark brown. The hind wings of the male are brownish, ATTACKING THE LEAVES. C3 IS )!• (lirtv wliitc, those of the i'emule dii-ky brown ; the body s li'iht brown, tlie thorax of ii darker shade. When ex- naiwlcd, the winn's measure from an inch to an indi and a (juartcr across. The female deposits her eggs in a ehister, on ihe under side ota leaf, (hn-ing tlie month of July, where theysliortly liatch into tinv eaterpdhirs, whieh at first consume only the sub- stance of the under side ot i!ie leaf, leaving the ui)[)er surface uiihrokcii, but as they increase in si/e they cat the entire leaf. \\ Ikii not eating, they remain close together, sometimes com- i.lclclv covering the branch they rest upon. Having come to maturity, which occurs during August or early in Scptem- hci', the larva appears as represented in J^^ig. o7. The head \< coral-red, and there is a hump on the back on the fourth x'wvi or segment of the same color ; the body is traced lengtli- \\i<(' by slender black, yellow, and white lines, and has two rows of black j)rickles along the back, and other shorter ones upon the sides, from each of which there arises a fine hair. The liinckM- segments taper a little, and are always elevated, :r- shown in the figure, when the insect is not crawling. Tt nuMsures, when fidl grown, about an inch and a quarter long. Tli(>so eatei pillars entirely consume the leaves of the branch on wlii.'h they are placed, and when these are insufficient the ailjoining branches are laid under tribute. When handled, (liey discharge a transparent fhiid having a strong acid smell, wliicli (lonl)tlcss serves as a defence against enemies, especially bir( ar. As thev maintain their gregarious habits dining their eii- tire larval existence, they can easily be gathered and destroycil, cither by cutting off the lindj ami burning it, or bv dislod^- iiig tlicm by suddenly jarring the limb, when they fall to the ground and may be tram|)led under foot. These larvte are also destroyed by parasites belonging to the family of Ichneu- mons, but it IS not yet known to what species we are i n( lebt ('(I for this friendly help. clost Wi'lKl ill M it i- iii(i(<' iiiciii. cliicl WW \\ T Nos. 25 and 26. — Canker-worms. Anisoplerijx vernala (Peck), and A. ponicturia Harris. These are two distinct species of insects which have been confounded under the common name of canker-worm, and,;is their habits and aj)pearance are so similar, it will be conveiii cut to treat of them under one heading. The moths from the h[^w\qs poineUiria leave the ground chiefly in the fall, those of venuitd, partly in the fall, but more abundantly in th< ^prii;^. A. pohtddria, known as the l*\ill C'aidcer-w. ill liivt claim our attention. I^ate in the season, wl .my of the leaves have fallen, and severe frosts have cut ( vthir that is tender, a walk in the woods or through the orchai i on a sunny afternoon is not void of interest. Here and there slen- der, d(>licate, silky-winged moths may be seen flitting about, enjoying the sunshine. On capturing one and exannning it ■**<- ATTACKING THE LEAVES. Oo .,"« ;W ^1 closely, Nve find it to be almost trans|);ireiit, and one is led to wonder wlivso trail t^ereatnre siiould seleet so blealc a season in MJiieh to appear; but, delieatc; as its structure seems to be, it is nevertheless one of the hardiest of its raee, requiring-, indeed, a considerable de<;ree of cold for its perfect develop- nicnt. These are the male moths of the eaidcer-worm, and chiellv those oi' pometaria, the fall canker-worm. 'J'he iemales arc wini^less. Fig. fhe eu'i^s of this species [a and b, Fii^. 59) are flattened a!>i)ve, have a central puncture and a brown circle near the honlt'i', ai-e laid side by side in regular ma.-ses (r, Fig. 50), often ;i- many as a hundred together, and generally placed in exposed situations on the twigs or branches (»t' the tree. They usually hatch about the time when the young leaves of the apple push i'roni tht' I Hid, when the little caidcer- wonns cluster uj)on and consume the tender leaves, and, on the ;ipproach of cold or wet weather, creep for shelter into the bi'>om of the exjianding bud or into the opening flowers. The newly-hatched caterpillar is of a pale olive-green color, with the head and horny part of the second segment of u very pale hue. When full grown, it measures about an inch in length. ])resenting the aj'pearance shown at/. Fig. 59 ; in the i^anie figure, c represents a side view of one of the segments of the body, enlarged so as to show its mnrkings. 'J'hese caterpillars are called loopers, because they alternately loop and extend their bodies when in motion. They arc also known as measuring-worms. They vary in color from iireenish yellow to dusky or even dark brown, with broad loui^itudinal yellowish or j)aler stripes along each side. When 1 t eating, they usually assume a slilF j)ostin'e, either flat and i)arallel with the twijis on which thev rest, or at an ani>;le of about forty-five degrees; in either case, since they closely 6 I oi; jysHCTs jxjf.iiiovs TO Till': ai'Pli:. rowoiublo ill (\i\ov the hiaiicli on v.liicli lluT rest, they ii>ii- ally cIihU' detoction. W'Ik ii full grown, tlicy Icuvct tlic tivis oi*^lici" by crccpi.ii;' down tlio (nuik or l)y letting:; lliciiiscKi s down by silken tlnvads iVoni the hfanclics. Wdicn thus sii-- |:endo(l in uroat nnni! hts, as is iVcMjuiMitly the ease, under lli" linihs ot" trees overhanuini:; roads and sidewalks, they heeoinc a ui'eat annoyan(!e, espeeially to sensitive ])eo|)le,and are ol'tcii swept oiV by passinj]:; vehieles, and in this manner sonietinii - distrihnted over a eonsidenddt! area. Ilavinj;- reat lied, the ground., <'„-y l)urri)\v int<» it to a depth of from two to six ine!ie>, wheic ihey make a rathe touuli eoeuou of bull-eolored silk, interwoven with particles ol' ('■■u'th. The chrysalis is about half an inch long, of a liglii gi'ayish-hrow n color, that ol' the niah' slender and I'urnished with wing-cast's, that of the female larger and without wing cases. 'I'he ehrysalids remain in the ground throughout tlir stuiiiner, and th(> moths usually aj»j)ear on tho v.ing (hiring the mild weather which succeeds the lirst severe frosts in autumn. 'I'he female moth of each spoeiis is without wings, and sluggish ill movement, with a very odd spider lik<' a|)|)earancc. (Sec A, Fig. t.n.) With V ^ r:' V^^ "^^^ . -"^ -^^ cii-s, ■ sh,> dra-s her ,.>N ^ir-i. Ksi%. ^r-..^-^*^^^j. ^.^ , weary way along in a most ungainly manner niilil she reaches tin l»ase of a suitable tree, up which she cliiiibs, and there awaits the arrival ol' lli(\ male ller iiody is of a uniform shining ash color above, and gray Ix'iieatli ; it is from three to four tertlis of an inch in lenglli. The fore wings of the male (I'^ig. (>(), spot. The hind wings are grayisli brown, with a faint central blackish dot and a iiioii' or less distiftcl whitish band crossing them. il 6 CO ''nVi'"",. ha- ■:;j ., i; ll i lie % ihc. . lil.Ml (lilt 1 1^. ai'r:i! -■^^ ■i* hiuu (•rev hale! I :^^ ■a i ATTACK I. \(' TJiK LEAVES. G7 Anisoplcrp' vcniata, \i\n)\yn as tlio Sprinn' ( ^ankor-worm, has ail oval-sliajKxl 0)i,g, sliowii at 6 in l"'iaMK! color on the to|) of the next segment; they, too, are al>out an inch long when lull grown, and present then the appearance shown at ff. Fig. 01. In the same ligure, c rep- I csents a side view, and d a back view, of one of the segments, enlarged so as to show their markings more distinelly. W'Ik'U full grown, this ealei'pillar elosoly resend)les that of the other s|»eeics, and the body is e(pially variabh? in color. Ill ihis lilt! head is mottled and s|)otted, and has two paki triuisverse lines in front; th(! body is longitudinally striped with many narrow pale lines; along the sides it becomes (lc(!per in color, and down the middle of the back are some l)la(!kis!i spots. Their habits are similar to thosi; of the other species, and they attain full growth about the sanu; lime. 'i'li(( <'hrysali(ls, which are found about tlu; sanu! depth under gi'oinid, are similar in color to those of pomrhirid, but llic cocoon is nmch more fragile, and is (jasily torn to j)iee,OH. Sometimes the moth esea|)es from tlie (ihrysalis in theautumn, bill more frecpKMitly during the first warm days ol' spring. The abdomen of the t'emale {h, Fig. (12), as well as tiuvt of ihc male, has in this spe-aos, upon the hinder margin of each of the rings, two transverse rows (tf stilV reddish s|»ines ; at '/ ill the fignn; is represented a joint of the abdomen, en- larged, showing tluise spines. The female also has a retractile j| jySECTS ISJURIOUS TO THE APPLi:. Ss« Hms8>' ovipositor, shown in the li^iire at c; this is wanting in tlic otiier species ; c represents a jxtrtion ot' one of )ier anteniiie. TJie lore win<>\s of the male are pak>r tiuui in poitid or six inches wide, and tied in the middle with a string; refus(! sorghum molasses, |)rinler's ink, and slow-drying varnishes, are used in a similar manner. 'I'in, lead, and i-ubber troughs, to contain oil, also belong to this class of I'cmedies, and have uU been used with uiore or less success. Jn the use of any of the first-named sticky substances, it should be borne in mind that they must be lve|)t sticky by freipient renewal of the surface in mild weather, uv i 4 I I till as lc;i rrli to a \' ai'i' >\\v I. we ATTACKING THE LEAVES. ;:i )r .V the a|)i)lic:ition will be useless; they slioiikl also be applied as early as the latter part of October, and ke[)t on until the leaves are expanded in the ibllowing spring. It must also be rcincnibered that some of the moths, defeated in their attempts to climb the trees, will deposit their eggs near the ground, or aii\ where, in faet, below the barrier, and that tiie tiny yonng worms hatoheil from thenj v,'ill pass without difHeulty through a verv small opening. Ileuee, whether troughs or b;mdages are used, care nmst be taken to jill up all the irregularities of .-m'faec! in the baric of the tree;:, so that no oi)enings shall be loft through whieh they may pass. Cotton batting answers well in most eases for this ])urpose. Till' sei'ond (ihiss of remedies consists of various ingiMiioiis devices, in the way of collars of metal, wood, or glass fasten('u)tlis from ascending the tree, olfer but littli; obstatde to the ])rogress of tlie yonng (■alei'|)illars unless the ojienings between the collar and the tfci' are carcriiily packed, ai-d hence they often fail of entire success. Those belonging to the first class are said to be the .sin-est and best, and while it must be admitted that it involves iiiiich time and labor to renew so often aiu' for so long a jjoriod (he lar or other sticky application so as to make; it an cfrectual harrier to the ascent of the insect, still it will pay, wherever the canker-worm aboiuids, to give this matter the attention re(piisite to insiu'c success. The limited pinver of motion possessed bv the female usuallv conlines this insect within narrow limits, ansl \\q\uv. it is local in its attacks, sometimes alioimdin'i; in one orchard and beinur scareelv known in a neighboring one; but when it has obtained a footing, and is iiegle(!ted, it usually nudtipli(>s j^rodigiously. Strong winds will >om( times carry the larva* from one tree to another iu>ar hv. When the worms lu'c onc(! on the tree, if th(^ \vvv. is small, they may be dislodged by jarring, when they all drop, suspended in mid-air by silken threads; then, by swinging a stick above them, the threads may be collected and the larvie laMimiaiMm V INSECTS IXJUHIOUS TO THE APPLE. V broii};lit to tlie ground and destroyed. Fall ploughing has been recommended to destroy the ehrysalids hv turning them up, wlien they are likely to be either killed by exposure or devoured by birds. Hogs also are very useful in destroyin;^ this i)est by rooting up the ehrysalids and eating them. These insects liave many natural enemies. A small mite, Xof/irics ucivo)'u.s Packard (Fig. 03), destroys the eggs. A mi mite jiarasitic fly deposits her egg> ^vithin tlie eggs of the canker-worm and destroys them. In the larval state they are i)reyed on by a small Ibur-wingcil lly, a species of Microgaster, which, afdM' having fed upon its victim to i'ull growth, eats its way out, and constructs a small oval white cocoon altachcd to the bodv of the cater[)illar. A species of Tachiiia, a two-winged llv similar to Fig. 4G, No. Kui. c,;}. >1 is also a jiarasite on thes e worms. i'red iceous msecits also feed upon them, especially the Green Catci-pillar-hunlii' (Fig. 47), the Copper-spotted Calosoma (Fig. 18), and the Rapacious SoMicr-hug, ^Sill<^(l (Vmdoiia (Say) (Fig. (M). The h i- rlini .vl sllMIC ;l1si> |i Fid. 01. Fraternal Potler-wasp, KiimcnoH fratrnni.^ Say {b-worin, an insect totally diHerent in all its stages iVoiii the common tent-caterpillar. The moth (»f this species deposits her eggs in broail patches on the under side of tlu; leaves, near the end of a branch, during the latter part of Mav or e;iily in dime. These hatch in the monlli of dune, -liilv, or August ; during the earlier period in t!ie warmer (li-(riet-. and later in the (bolder ones. As sniiii as (he young larva; appear they begin to eat, iind to >pin a well over themselves for protection. 'i'li(>y devour only llie pulpy |)orti()n of the leaves, leaving th(> veins and skin of tiie under sui'face untouched. While young, they are of a |iali'--yellowi.sh color, sparingly hairy, with two rows of black marks along (he body, \^'lu!n full grown, (hey are an iii(;li ('!• iiio)-e ill Icngdi, and vary greatly in their markings; some examples an; pale yellow or giHienish, others much darker and <•!' a bhiish-blattk hue. 'Hie head is black, and (here is a broad dii'^ky or blackish stri[)e down the back ; along; each side is a 72 INSECT.J ISJURIOUS TO THE Al'PLi:. 'A Fui. 06. yellowish band, .spccklod more or less with blaek. The body is covered with long straight hairs, grouped in tufts, arisin^^r from small black or orange-yel- low protuberances, of which thcri; are a number on each segment. The hairs are sometimes of u dirty white, with a few black -' ones intersj)ersed, sometimes red- dish brown ; they are hingest towards the extremities of the body. Unlike the common tent-caterpillars, these la^'vos do not wander from their nests to Iced until nearly full grown, but extend the web over their whole feeding-gromid, constantly enclosing fresh portions of the branch occupied, until sometimes the web covers a space several feet long, the whole enclosed portion having a scorched or withered look, as if it had been blighted. When nearly at their fidl growth, they suddenly abandon their social habits and scatter far and wide, feedint>; on almost anv t2;re('n thiii^ thev meet with. Thev are verv active, and riui briskly when disturbed. DiM'ing September and October these caterpillars descend to the ground and burrow a short distance under the surface, or creep under crevices of bark or some such shelter above ground, where they form slight cocioons of silk, interwoven with hairs i'rom their bodies. Within these cocoons tluy soon change to chrysalids of a dark-brown color (Fig. 67). Fia. 07. Fia. 08. V* smooth, polished, and faintly punetaled, with aswcilling about the middle. In this condition they remain until the following year. The moth (Fig. ()i)), attacks them, piercing their bodies with its beak and sucking them empty. This i'riendly insect is. represented in the iigure at b, with one pair of wings extended, the othei" clo.scd ; at a, a magnified view ol' the beak is given. No. 28. — The Cecropia .Emperor-moth. Plahjsamia Cecropia (liiiui.). Among the many beautiful insects native to this country, (here are none which excite more delight and astonishment than the Cecjropia nu)tli. Its .size is enormous, measuring, when its wings are spread, from live to seven Inches a"ross, f!i 74 lASECrS INJURIOUS TO THE AI'l'LIJ. 1 while its beauty is siieh as to oliann all hcliolders. Flo;, 70 ijjivcs a very ^ood rej)rc,sontatioii of this niagiiiticciit motli. Botli the . iVoiit and hind wings arc of a rich brown, the anterior pair grayi.sii shaded with red, (he [xisterior inoie pi ..ti'.>irwt^» L I line, ATTACKISG THE LEAVES. to uiiiroriiilv l)r()\vii, and about the middle ol" each of the wing's i- a nearlv ki(hiey-shaped white spot, shaded more or loss with ivd, :ind margined with blaek. A wavy (hill-red band crosses (.ai'li of the wings, edged within witli white, the edging wide and distinct on the hind wings, and more ov less faint on the ficiit pair. The enter edges of the wings are of a pale silUy blow II, in which, on the anterior [)air, runs an irregular didl- biarlv liiH>, which on the hind wings is replaced by a double broken baiul of the same hue. The front wings, next to the slinulders, are dull red, with a curved white and black band, and near their tips is an eye-like spot with a bluish-white cn-ceiii. The upper side of the body and the legs are dull red, with a wide band behind the head, and the liirnhn* eiiiil the mouth, which softens the fibres; then a tearing, seiaping sound is heard, made by the insect working with the claws on its lore feet, pulling away the softened threads and packing thenj on each side to make; a passage I'or its body. Tlie i)lace of exit is the smaller end of the (iocoon, whic-h is b_ 76 INSECTS INJURIOUS TO THE APPLE. more loosely made tluiii any other part, and through whieh, at'icr the internal obstacles are overcome, the passage is etllrtc 1 without nuich furtiier trouble. Fii>t through the opening is thrust the front pair of bushy-looking I^ nrs. the shar[) claws of which fasten on tiie outside structure; tiion with an effort the head is drawn forward, disphvying the bcautifid feather-like antennic; next the thorax, on wiru'li are borne the other two pairs (if legs, is liberated, and Hnally tlic escape is completed by the with- drawal of the abdomen. An odd- looking creature it is at first, widi its large, plump, juicy body, and its thick, small wings not much larger than those of a liumble-bee. 'i'lic insect now seeks a good location where the wiiiffs may hano; down in a position favorable for expandiiin, when in a short time they undergo a marvellous i^rowth, attaininu" their full size in from half an hour to an hour. Soon after tiieir exit these moths seek their mates, and shortly tin female begins to defjosit her eggs, a process which occupies considerable time, since there are two or three hundred to dispose of, and they are usually laid in pairs, firmly fastened with a glutinous material, on the under side of a leaf of tin; tree or shrub which is U) form the future food of the caterpillar. The egg is nearly one-tenth of an inch long, ahnost round, of a dull creamy- white color, with a reddish s[)ot or streak near the middle. The 1 (lays, meal shiniii; the sai ra))id, too tig At cac ■•; ill an M reprcse ATTACKING THE LKAVK^. ^^■g'>^, %% TIic (lunition of the egg-state is usually from a week to ten (lavs, when the young larva eats its way out, making its first meal of the empty egg-shell. At first it is blaelc, with little siiiniiig black knohs on its body, from which arise hairs of the same color. AVith a ravenous appetite, its growth is very rapid, and I'rom time to time its exterior coat or skin becomes too tiii'lit for its comfort, when it is ruptured and tiirown off. At each of these changes or moultings the caterpillar appears ill ail altered garb, until finally it assumes tiie appearance rejirc^ented in Fig. 72. It is a gigantic creature, from three Fit 1 1 III;'. to four inches long, and nearly as thick as a man's tlunnb; its color is |)ale green ; the hn-ge warts or tuberciles on the third and fourth segments are coral-red, the others on the back are yellow, except those on the secontl and terminal .segments, which, in common with the smaller tubercles along the side, are blue. During its growth from the diminutive creature as it esca])es from the egg to the monstrous-looking lull-grown specimen, it consumes an immense amount of vcge- tai)le I'ood ; and especially as it api)roaches maturity is this voracious ap|)etite aj)parent. Where one or two have been ])laced on a young apple-tree, they may in a short time strip it entirely bare; the loss of foliage during the growing period 78 INSECTS IXJriilOUS TO Till-: APPLE. h ])revent.s the proper ripening of the wood, and often endangers the life of the tree. Remedies. — The natural increase of this insect is great, and wise provisions have been made to keep it within due boiuids. Being so conspicuous an object, it often forms a dainty iik al for the larger insectivorous birds; there are also eneniiis which attack tiie egg and '■ '"■ young larva, and sevcnil species of parasites which , live within the l)ody of ' the caterpillar, and finallv destroy it either in the lar- val or the chrysalis state; it is believed that fully four-fifths of the larvre perish in this manner. The largest o^' these pprasites, and perhaps the commonest of them all, is the Lony;- tailed 0])hion, 0})hion iiki- cruruiii (Fiinn.) (Fig. 73), a large, yellowish-brown Ichneumon. The female of this Hy deposits her eggs on the skin of her victim, where the young larvfe soon hatch, and, eating their way to the interior, prey upon the fatty j)ortions of the cater- j)illar. Ai'ter the latter has attained full growth, formed its cocoon, and become a chrys- alis, the enclosed para-ite causes its death. When iull grown, the larva of this jiar- asite is a large, fat, footless grub (Fig. 74), which spins an oV)long-oval cocoon with- in the Cecroj)ia chrysalis, and escapes as a fly, sometimes in the autumn, but more frequently in the following spring. A two-winged fly, a species of Tachina (Fig. 46), is also veiy frequently found as a parasite on the caterpillar. The larva Fk). 74. niiied also fe( ■— M ATTACK I XG THE LEAVES. 79 of this pai'a>ite is a fat, fleshy, Ibotless grub, of a traiisliu'cnt vcll(»\v color, and about half an inch in length. A third para- site is a sn)all four-winged liy, known as the ( Vcropia (,'halcis- tlv, Smicra mar'm (Uiley) (Fig. 75). In tin; figure the ffy is Fi... 7.'). I'^Ki 7i5. Fio. ^~\ iiiitcli nuiL'uified ; the short lines at the side show its natural size, A fourth friendly liclper is an Icliueunion fly, known nm\v[' the name of the (Vcropia Cryptus, Cri/pfus e.ftrematis Cresson, which infests the C'ecroj>ia larva in iiwat niuubers, filling its chrysalis so entirely with its thin, papery cocoons (hui a transverse section i)ours a strong resemblance to a piece of lioney-comb. (Sec Fig. 70.) The flies of this parasite escape in June, the female presenting the appearance shown in Fig. 77, where it is niiK^h mag- nilied, the short line at the side showing its natural size. Another two-winged parasite is Gai'rdx anchnra Loew. While very partial to the apjile, the larva of Cecropia will also feed on the cherry, plum, pear, maple, willow, lilac, Eng- 80 IXSECTS INJURIOUS TO THE APPLE. \'\A\ alik'r, red ciu'niiit, and lia/d ; also on llu,' liickoiy, birch, elm, hi iiey-l()eu;st, harheny, hawthorn, and elder, Durint; the winter their cocoons should he looked for and destroyed ; the lar\ ;e also may In; subdued i)y hand-pickinjj;, — ilu^ir work, as well as their r.ppeai'auee, beinj:; so conspieuuiis iliai tliev are readilv detected. ¥>A\. 78. >-^^^^ No. 29. — The Unicorn Prominent. (.'telodiisii.-i nniciiniis iSm. \- Alil).\ Thc^ larva of tliis moth is a very siniiular-Iookiiijij creature. (See Fill,'. 78.) It is re ])artly-ealen leaf, it is not easily (lete(!ted. J'jvenlually il consumes ihc entire leaf, except !i small portion of the base. When mature, it measures from an inch to an inch and a (piai'ler in ienglh, and, while generally solitary ni its habits, sometimes three or four are found together eating tlic leaves of the sani(> twig. IJesides the ap|)le, it i'eeds mi tlie i)lum, d' gwood, rose, ahhir, and svinterberry. When full grown, which i^ lowai'ds the end of Re])tomber, it descends from the tree, and under fallen Iea\'cs on the ground constructs a thin, almost transparent, jiapery coeooii, wi'h bits of leaves attached to the outside. A consideraltl" time elajises after lh(> cocfjon is formed before the caterpillar i ATTACKING THE LEAVES. 81 (,'liaii"'c'S to a brown chrysjilis. The inotli docs not appeal- until tine following suiunier, anil is nio.st eoninion in July. (See Fi^^ 79.) The fore wings are light brown, variegated with patches ol' trnienish white, with many wavy linos of a dark-bi-ow n (nli>r, two of which enclose a small whitish space; at l!ie base there i- a shoi't blachish mark near the middle; the tij) and the outer hind margin ai'c whitisli, tinged with ivd in the males, and near the outer liiiid angle there are two hhwk (lushes and one; small white dash. The hind wings of the male are dirty white, with a, dusky spot on the inner hind angle, those of tlui female sometimes entirely dusky. The hody is brownish, with two narrow bla<'k bands across the frdiit part of the thorax. When the wings are expanded, this moth measures I'rom an incb aiid a (piarter to an inch and a Jialf across. It is (l()id)le-br<)(td(!d in the South, the moths of the first brood apjx.'aring early in .)inu', those of the second in August; in the North it is also sometimes dodhle-brooded. This insect is rarely present in suHicicnt tunnbers to do atiy material damage ; ai. 1 it seldom attracts the notice of the fiiiit-grower, uidess by die singular appearance of the cater- pillar and its re:oa* 'cabl(> cond)ination of c(dors. No para- sites hiivo yet been re-'orded as pnyingon it, though doubtless it sulTcrs in this way in coiumou with most other insects, no No. 30,— The Turnus Swallow-tail. Vapilio luriius I, inn. Every one must luivo j^een the large lin-nus swallow-tail l)utti'rllv floatiiiix about in the warm days of June and dulv, eiijoving the .'•unshiuc, drinking from the wayside pool, or :-ippiiig th(> honey from llowcrs. It is one of our largest and hiuid.somest butterllies, mea.'^uring, when its wings ai'e ex- m j.\si:cTs jyjujuurs to the M'Pi.f.. piiiul'"!, about (our iiiclics across. (Sec Fig. 80.) The wiiios areol'a rich, pale loiiioii-ycllov color, baiuh'tl and hordci'cd with hhicU ; on the I'orc; wings arc lum- hhiciv bars, the inner one extending entirely across tliu wing, the outer ones hc- ('(»inii!g shorter as tliev approach tlie api'.\. The front inai- gin is edged with hhicU, and tlio outer margin has a wid^' border of the same, in winch is set a row of eiglit or nim pale-yi'Mow spots, the h)wer ones less distinct. ''9. Vxii MO The hind wings are crossed by a streak of bhick, which is abnost a continu"lion of the iinier band on the 'ore wings; there is a short bhick streak a little beyond, and a wide black border, wideidng as it approaches the iiniei" angle of the wing. I^nclosed within this bolder, and towards its (inter cilgc, arc six luindai' spots, the upper and lower ones reddish, the others yellow ; above autl about these spots, ami especially towards the iinier ungle of the wing, tlii' black bordering is thickly powdered with blue scales. The onlcr nuirgin of the hind wings is scalhtped aixl partly edged with yellow; the iiuicr margin is bordered with brownish black Ibr about two- W A T TA CKING Til E L E. I I 'KS. .s;i m F* tliir(I> ul' its k'li^tli, i'ollowcd hv a snuill vcIIdw paU'li, wliidi i- >iic('i('(k'(l by a lai'<2;('r l)lack spot, centred witli a crescent dI" l)li!c atoms, and bounded below by an iri'e<;'idar i'ed(li>li >|»()t, iiiai'uined witbin with yellow. The hind wings terminate in two K)n«i' black (ails edj^'ed on the insiik; with yellow. 'J'he IkkIv is black above, mar<;ined with pale yellowish; below, Ncllowish streaked with black. The under surface of the wiii^s resend)les the up])er, but is |)aler. This insect passes the winter in the ehi-ysalis state, and ap- pears fu'st on the win" the leaves dl' ilie apple and other trees and shrubs (»n which the larva (vv<.h\ they are about f)ne-( wenty-foiirtli ol'au inch in dianu!- ti I', nearly round, of a dark-j^reen c(tlor, with a smooth sur- I !''( , In ai»oul ten or l>velveday> the eu^s benin to clian^c ct.ior, becominii,' darker, and i?rowin;;' verv dark Just bel'oro the c.-cape of llie larva'. The vci'y youn^^ caterpillars are black, roughened with small brownish-black tubercles, with the first segment thicki'iied, of a did!, glossy tkish (folor, a |H'oiiiinent tiesliy tid)ercle on each side, and a j)ateh J*^^'!i^- W.- est towanis the head f^^/lvT <"'■>■• ^>" <•'<' ii'i- ■* ■■ ^'""■'"■'ms^iii^^^i^^y...... tenor Heginenis (he green is ol" a, darker sbiade, but paler on thy sides of the body, and partly covered with a whitish bloom. On ilu; (ront edge of (lie first Hcginent is a I'aised yellow fold, which slighdy ovc'rhangs (he head, and from which, wlien irri- Ui(«'d, the hirva protrudes a yellow, lieshy, forked organ, at Kid. SI. 84 JXSIJCTS JAJiliJOrS TO THE AJ'J'Li:. ""■■m mm tlic stiinc tiiiu' ,ui\iiig ofl' a (lis:ii>;rec'ablL' odor, wliicli is (loiil)i. less used as a means of deience against its eneniies. On each side of the third segment is an eye-like spot, nearly oviil, yellow, enelosed hy a ring of blaelc, (-er/.i-ed witii a small elongated blue dot, whieh is also set in blaek. On the hindii- portion of the fourth segment is another raised yellow ioM. bordered behind with rich velvety blaek ; the latter is sei n only when the larva is in motion. On the terminal segmeiii there is a similar fold, ilattened above, with a slight })roiii- beranee on eaeh side. On the fifth segment are two blih' dots, one on eaeh side, and there; are traces on the hindt r segments of similar dots, arranged in longitudinal rows. The imder surface is paler than the upper, with a whiti>li bloom. When the caterpillar is about to change to a chrysalis, whii'h is usually diUMUg the early part of August, the coler of the body grows gradually ilarkei-, until it becomes dark reddish brown, with the sides nearly black, and the biii!' dots become nuich more distinct. Having selected a suitable spot in whii'h to pass the chry.sdis state, it spins a web oC silk, into which the hooks on the hind legs are (irmly fastened ; then, having jireparcd and stretched across a silken band er loop to su|)i)ort its body in the middle, it casts its larval skin, and remains a dull-brown chrysalis, of the form shown in Fig. 82, until the following spring. This insect is very widely distributed, being found in nearly all parts of the United States and Canada. 'I'iie caterpil- lar feeds on a number of dilVerent trees, but chielly allecis tin; apple, cherry, thorn, and basswood. As it is always .solitary in its habits, it i> never likely to causi! much injury. South of lVnnsylvani;i (he female of tiiis species of butterfly usually loses its yellow color and becomes nearly black, while the other ,sex retains its nurmal hue. Fui. W. ii& I 4 ATTACK I SO THE LEAVES. 85 u No. 31.— The Blind-eyed Sphinx. Sin rri nihil ft >\vivrii/>is (Sin. \' Alth.). I)uriii' the sides, with its skin roiiti'hened with niiniert)tis white -ti])ped ^rannhitions, hiivin«>; a stout lioi-n on the hinder part of its back, of a hluish-ijreen color, wirii J''"'- ^■'>- x'vtii obli(pie sti'ipes on cncli side, oC a pale yel- low, th(^ last one of a hriixhter vellow than the uilici's and exteudini;' to the base of tlu! horn. This is the larva of the hliiid-eyed sphinx, represented in 1*^1^-. So. Wh