LlBRART fTATE PLANT BOARl Technical Series, No. 11. U. S. DEPARTMENT OF AGRICULTURE, BXJRE^XJ OF ENTOlMOLOa-^^. L. 0. HOWARD, Entomologist and Chief-of Bureau. ■■ A CLASSIFICATION OF THE MOSQUITOES OF NORTH AND MIDDLE AMERICA. PREPARED UNDER THE DIRECTION OF THE ENTOMOLOGIST BY D. \V. COQUILLETT, Assififant EntomologiM. WASHINGTON: C n GOVERNMENT PRINTING OFFICE. 1906 B UREA U OF ENTOMOLOG Y. L. O. HowAKD, Entomologist and Chief of Bureau. C. L. Marlatt, Entomologist and Acting Chief in absence of Chief. R. S. Clifton, Chief Clerk. F. H. CniTTENDEN, iu charge of breeding experiments. A. D. Hopkins, in charge of forest insect investigations. W. D. Hunter, in charge of cotton boll weevil investigations. F. M. Webster, v7i charge of cereal and forage-plant insect investigations. A. L. QuAiNTANCE, iu charge of deciduous-fruit insect investigations. Frank Benton, m charge of apicultnral iyivestigations. E. A. ScHAVARZ, D. W. CoQUiLLErr, Tii. Pergande, Nathan Banks, Assistant Ento- mologists. E. S. G. Titus, August Bubck, Otto Heidemann, A. N. Caudell, R. V. Currie, J. (J. Sanders, F. D. Couden, E. R, Sasscer, J. H. Beattie, I. J. Condit, Assistants. R. C. Altiiouse, W. F. Tastet, Mary G. Crampney, A. J. Leister, E. C. Wood, T, A. Keleiier, Jessie E. Marks, Stenographers and Clerks. Lillian L. Howenstein, Artist. Mabel Colcord, Librarian. H. E. Bueke, W. F. Fiske, J. L. Webb, J. F. Strauss, engaged in forest insect investi- gations. W. E. Hinds, A. W. Morrill, Springer Goes, J. C. Crawford, W. A. Hooker, W. W. YoTUERS, A. C. Morgan, W. D. Pierce, F. C. Bisiiopp, C. R. Jones, F. C. Pratt, C. E. Sanborn, J. D. Mitchell, Wilmon Newell, J. B. Garrett, C. W. Flynn, engaged in cotton boll weevil investigations. G. I. Reeves, W. J. Phillips, engaged in cereal and forage-plant insect investigations. Fred Johnson, A. A. Girault, A. H. Rosenfeld, engaged in deciduous-fruit insect investigations. E. F. Phillips, J. M. Rankin, Leslie Martin, engaged in apicultural investigations. C. J. GiLLiss, W. A. Keleiier, Marie Rey, Mabel F. Clayton, engaged in silk investigations. Technical Series, No. 11. U. S. DEPARTMENT OF AGRICULTURE, BXJREAXJ OF EiSTTOZVLOLOGY. L. 0. HOWARD, Entomologist and Chief of Bureau. A CLASSIFICATION OF THE MOSQUITOES OF NORTH AND MIDDLE AMERICA. PREPARED UNDER THE DIRECTION OF THE ENTOMOLOGIST D. W. COQUILLETT, AssiMant Entomologist. WASHINGTON: GOVERNMENT PRINTING OFFICE, 1906. LETTER OF TRANSMITTAL. U. 8. Department of Agriculture, Bureau of Entomology, Washington, D. (7., March 15^ 1906. Sir: I have the honor to submit a manuscript entitled "A Classifica- tion of the Mosquitoes of North and Middle America," prepared by Mr. D. W. Coquillett, assistant entomologist. The Department so frequently receives requests for information concerning this subject from students of entomolog}^ from phj^sicians, and from persons engaged in sanitary work that the desirability of an explicit publica- tion on this subject is ver}^ obvious. I therefore urge that the manu- script be published as Technical Series, No. 11, of this Bureau. Respectfully, L. O. Howard, Entomologist and Chief of Bureau, Hon. James Wilson, Secretary of Agriculture. 3 CONTENTS. Page Inlioduction 7 Subfamilies of the Culicidse 9 Table of the subfamilies 11 Subfamily Anophelinae 12 Table of the genera 12 Genus Myzomyia 12 Genus Anopheles 12 Genus Cycloleppteron 13 Genus Nototricha 13 Genus Cellia 13 Subfamily Megarhininse 14 Genus Megarhinus 14 Subfamily Psorophorinae 14 Genus Psorophora 14 Subfamily Culicinse 15 Table of the genera 15 Genus Lepidosia 16 Genus Janthinosoma 17 Genus Stegomyia 17 Genus Verrallina 17 Genus Lepidoplatys 18 Genus Aedes 18 Genus Ochlerotatus 18 Genus Grabhamia 21 Genus Lutzia 22 Genus Culieella 22 Genus Theobaldia * 22 Genus Culiseta 22 Genus Culex 23 Genus Melanoconion 23 Genus Tinolestes ^ 24 Genus Micraedes 24 Genus Isostomyia 24 Genus Tseniorhynchus 24 Genus Mansonia 25 Genus Aedeomyia 25 Genus Haemagogus 25 Genus Cacomyia 25 Genus Gymnometopa 25 Genus Howardina 26 Genus Pneumaculex r 26 5 6 CONTENTS. Subfamilies of the Culicidse — Continued. Page. Subfamily Deinoceritinse 26 Genu^ Deinocerites 26 Subfamily Uranotaeniin^e 26 Genus Uranotaenia 26 Subfamily Triehoprosoponinje 26 Table of the genera 26 Genus Trichoprosopon 27 Genus Wyeomyia 27 Genus Dendromyia 27 Genus Phoniomyia „ 27 Genus Limatus 27 Genus Sabethoides 27 Genus Sabethes 28 Index 29 ILLUSTRATION. Page. Fig. 1. Wing of Culex pip'ieiu, with names of veins, cells, etc 8 A CLASSIFICATION OF THE MOSQUITOES OF NORTH AND MIDDLE AMERICA. INTRODUCTION. In the following pages all of the subfamilies, genera, and species of mosquitoes known at the present time to occur in North and Middle America are briefly described or mentioned. In several instances, where the species have been founded chiefl}" upon larval characters, the adults have not been differentiated in the present work, owing ta the fact that the cast larval skins were turned over to a second person before they were identified and associated with the bred adults. It was thought best, however, to publish this work in its present incom- plete form, so that students might avail themselves of it at the com- mencement of the mosquito season. The greater number of these species were founded upon one or two specimens only, so that the range of variation in the adult stage could not be ascertained by the original describers. During the summer of 1905 Dr. L. O. Howard examined the type specimens of several of Wiedemann's species in the Natural History Museum at Vienna, Austria, and with the aid of Dr. Anton Handlirsch, supplemented by a series of questions by the writer and a collection of named specimens for comparison, was able to gather some very impor- tant information in regard to those species which occur in North and Middle America. The museum collection was found to be in good condition, and type specimens were indicated by red labels. Follow- ing is a list of the species examined, with the results obtained by Doctor Howard: Anopheles albimanus. The type agreed well with specimens of Anopheles albipes Theobald. Anopheles crucians. The writer had correctly identified this species. Anopheles ferruginosus. This was not a new species but simply a change of name for Culex quinquefasciatus of Say. It is represented in the Vienna museum by four spec- imens of a Culex; this is in perfect accord with Say's statement that the legs of this species are much shorter than those of Anopheles punctlpennis. His other statement, namely, that it was an exceedingly numerous and troublesome species on the Miss- issippi River in May, considered in connection with the characters and measurements given in the descriptions of both Say and Wiedemann, seem to indicate that it can be no other than the common and widespread Culex pipiens. 7 8 CLASSIFICATION OF MOSQUITOES. Culex fatigans. The female has simple tarsal claws and the petiole of the first sub- marginal cell is about one-third as long as the cell. ■Culex molestus. This is identical with Psorophora ciliata Fabricius. Culex posticdtus. The type has the last two joints of the hind feet wholly white; Janthinosoma mu.nca Say is a synonym. The Janthinosoma posticata.ot Theobald, in which the last joint of the hind feet is white, is therefore a different species, for which the writer proposes the name teriiiiiialis. Culex jmngens. Three specimens from New Orleans, La. The claws are apparently simple, the scales of the wings are wholly brown, and the petiole of the first submar- ginal cell is from one-sixth to one-fifth as long as the cell. It is evidently identical with pipiens. Culex tamiatus. A badly rubbed specimen of each sex from Savannah, Ga. It is synonymous with Stegomyia calopus Meigen. Culex tseniorhynchus. The writer had correctly identified this species. The most important changes resulting from this critical examination of the types are that the name alhimanus replaces alhipes^ and jposti- catus takes precedence over musica, on account of priority in the publication of the original descriptions. In the preparation of the present work it has been the constant aim of the writer to render it intelligible to the average student and observer by dispensing with the use of all technical terms so far as HVJMER*LC«)«SVON Fig. 1.— Diagram of the wing of a mosquito {Culex pipiens) , with names of veins, cells, etc. (original). this could be done without sacrificing either accuracy or clearness. A few terms, however, which could not be avoided, will need an explanation; these relate chiefly to the veins and cells of the wings, and it is ])elieved that they w^ill be made plain by reference to the accompanying illustration (fig. 1). The petiole of a cell is the last section of the vein before it forks to form the cell. The segments of the abdomen and the joints of the feet and antennae are numbered from the point of attachment outwardly; thus, the large bulbous joint of the antennse which is attached to the head is the first joint, the one next to it is the second, and so on. The scutellum is the semicircular piece at the posterior end of the upper part of the thorax, from which it is separated by a transverse suture. The remaining terms will no doubt be readily understood b}^ the average reader. SUBFAMILIES OF CULICID.E. \) In the tables of subfainiJies and genera given on subsequent pages of the present work these groups are arranged in their systematic sequence, but no attempt of this kind has been made in the tables of the species. In the lists of species the synon3mis are indented. THE SUBFAMILIES OF THE CULICID^. The family Culicida) was founded by Latreille in the year 1825. He did not consider it as representing a higher group than a tribe. Only the long-billed forms were known to him. The short-billed forms were erected into a distinct group, Corethrinee, equivalent to a family, by the Italian naturalist Rondani in the year 1856. Schiner, in 1864, regarded the Corethrinas as being onl\^ a subfamily of the family Culicidse, and this view has been quite generall}^ adopted b}^ later writers. In the 3'ear 1883 Brauer proposed to include in this family the genus Dixa, which Schiner, fifteen years previously, had made the t3^pe of a new family, the Dixidse. D^^ar, in 1905, proposed to unite the Dixidae with the Corethrinee, the two groups to form one family, distinct from the Culicidse. That these three groups, the Dixidte, Corethrinae, and Culicinse, are closely related to each other admits of no doubt. That the Corethrinae are much more closely related to the Culicinae than they are to the Dixidae is also very evident. Thus the larva of the latter is provided with a pair of fleshy anal prolegs, a structure found in some of the Chironomidae, but never present in an}^ of the known larvae of the Corethrinae nor of the Culicinae. In the adults the auxiliarj^ vein in the Dixidffi ends at a point opposite the root of the second vein; in the other two groups it is prolonged nearly one-half of its entire length bej^ond the root of the second vein. In the Dixida^ the posterior margin of the wings is provided with hairs onl}^; in the other two groups it is fringed with scales. Again, in the Dixidae the antennae are almost bare, and are similar in the two sexes; in the Culicinae, with a single exception, and in the Corethrinae these organs bear many long hairs, which, with few exceptions, are longer and much more numer- ous in the male than in the female. It will thus be seen that the Dixidae are sufficiently distinct to be maintained as a separate family. The radical difference in the structure of the mouth parts in the adults of the other two groups, added to the equally great difference in the-food habits of the females, renders highly desirable their sepa- ration into distinct families, and we can do no better than to follow the lead of Rondani and consider that the short-billed forms constitute a family by themselves, the Corethridae. With these forms elimi- nated, the family Culicidae becomes a ver}^ homogeneous group, char- acterized by long, slender antennae composed of fourteen or fifteen joints; a greatly elongated, slender proboscis; the presence of scales 23581— No. 11—06 2 10 CLASSIFICATION OF MOSQUITOES. on the wing veins; ten veins and subdivisions of veins which reach the margin of the wings and a vein along the posterior margin; and by the absence- of a disca] cell and of spurs at the apex of the inner side of the tibii^. . In the family C'ulicidie as thus restricted Theobald in the 3' ear 1901 erected the following live subfamilies: Anophelinre, Megarhininte, Culicinse, Aedeomyina', and Trichoprosoponinai. The Aedeomyinse were separated from the Culicinie by the nnich shorter palpi of the male. This appeared to be a natural division so long as there were known only forms wherein the palpi of the male in the one group are at least as long as the proboscis, while in the males of the other group they are less than one-fifth of this length; Init the recent discovery of forms in which the male palpi are in one case one-third as long and in the other nearly one-half as long as the proboscis, greatly weakens the supposed importance of this difference in the relative length of the male palpi. Moreover, both as regaids the larva and the structure of the tarsal claws and shape of the scales in the adults, some of the forms with sliort palpi in the male are much more closely related to species with long palpi in the male than they are to any of the others of the group with short palpi. These two divisions are thus seen to be unnatural and the two proposed subfamilies, namely, Culicinae and Aedeomyina\ should therefore be merged into one. In the year 1901: Lahille separated out the genus Uranotsenia as the type of a distinct subfamily which he named Uranottenina, giving as its principal distinguishing character the great elongation of the peti- ole of the first sul)marginal cell and the conse(|uent shortening of this cell; the larva has the four tufts near the middle of the head repre- sented by stout spines which jire covered with spinules. Lutz, in the same .year, erected four supposed new subfamilies: Ha^magoginae, Aedin{«, Hyloconopinae, and Dendromjnnse: the first of these belongs to the Culicinre as above constituted, the second is a mixture of three su])families having short palpi in both sexes and the posterior end of the thorax bare, while th^ Hyloconopina3 and Dendromyinae will fall as synonyms of Trichoprosoponinae. Ver}^ recently, in the early part of the present year (1906), Miss E. G. Mitchell erected two additional subfamilies: Psorophorinae and Deino- ceritinti?. The first was founded on tiie genus Psorophora^ previously placed in the Culicinae, but which, according to the habits of the larva, and the structure of its mouth parts, is much more closely related to the Megarhininae. The second subfamily was founded on the genus Deinocerites^ which differs radically from all the other members of the Culicidae, not only in the structure of the mouth parts, particularly the mandibles, of the larvae, but also in the antennae of both sexes in the adults. SUBFAMILIES OF CULICID^. 11 The following table exhibits the relationships and differences exist- ing in the various subfamilies of the family Culicidse at present known to occur in North and Middle America; the latter term, as employed by Jordan and Evermann in their admirable work on the fishes of this region, is intended to include Mexico, Central America, and the West Indies. There are characters in the eggs and larvae also which sup- port the differentiation of these subfamilies, but these are not given here, since the larvae will be considered in another publication of this Bureau: TABLE OF THE SUBFAMILIES. A. Scutellum convex behind, never distinctly three-lobed; posterior end of the thorax bare; small crossvein usually situated considerably before the root of the third vein and connected with it by a stump of a vein; claws of the female simple. B. Proboscis straight or almost so; back of the head devoid of broad appressed scales, but with many narrow outstanding ones; body never with metalescent scales; first submarginal cell longer than its petiole; claws simple in both sexes. 1. AXOPHELIN^ (p. 12) BB. Proboscis strongly decurved; back of the head wholly covered with broad appressed scales, but devoid of narrow, outstanding ones; body covered with broad appressed metalescent scales; first submarginal cell less than half as long as its petiole; some of the claws of the male toothed. 2. MEGARHININ.E (p. 14) A A. Scutellum distinctly three-lobed; small crossvein usually situated beyond the root of the third vein. C. Posterior end of the thorax bare. D. First submarginal cell at least nearly as long as its petiole; some of the claws of the male toothed; thorax never with metallic bluish scales arranged in lines or spots. E. Second joint of the antennae less than eight times as long as wide in both sexes, with many long hairs, longer and more numerous in the male. F. Femora bearing many outstanding scales; wing scales narrow. 3. PSOROPHORIX.E (p. 14) FF. Femora devoid of outstanding scales «. 4. Culicix^ (p. 15) EE. Second joint of the antennae unusually long, in both sexes over fourteen times as long as wide; antennae in both sexes with a few short hairs only 5. Deinoceritin^ (p. 26) DD. First submargiual cell less than half as long as its petiole; claws simple in both sexes; thorax with metallic bluish scales which form lines or spots 6. Uranot.eniin^ (p. 26) CC. Posterior end of the thorax behind the scutellum bearing several bristles and sometimes with a few scales; claws simple in both sexes; antennae similar in the two sexes, bearing many long hairs 7. Trichoprosoponin^ (p. 26) « Except in the genus A'edeomyia, which has broad wing scales. 12 CLASSIFICATION OF MOSQUITOES. 1. Subfamily ANOPHELINiE Theobald. Table of the Genera. 1. Abdomen with clusters of broad, outstanding scales along the sides; outstanding scales on the veins of the wings chiefly rather broad 4 Abdomen never with such clusters of scales 2 2. Outstanding scales on the veins of the wings lanceolate, or broader, strongly taper- ing to their bases 3 Outstanding scales very narrow, linear, very slightly, if at all, tapering to their bases; feet with white bands. ( Middle America. ) Myzomyia. 3. Veins of the wings having the outstanding scales rather narrow, lanceolate; feet wholly black Anopheles. Veins of the wings with many broad, obovate, outstanding scales; feet with nar- row, indistinct white bands at the bases of some of the joints. (Middle Amer- ica. ) Cijcloleppteron. 4. Upper side of thorax and scutellum bearing many appressed lanceolate scales; outstanding scales on the veins of the wings rather narrow, lanceolate. (Florida and southward. ) Cellia. Upper side of thorax and scutellum with hairs only; many rather broad, obovate, outstanding scales on the veins of the wings. (Middle America. ) Nototricha n. gen. Genus MYZOMYIA Blanchard. (Synonym : Grasmi Theobald. ) Wings black-scaled and with several white-scaled patches; feet black, banded with white; thorax gray and with four black stripes. (West Indies.) lutzii Theob. Genus ANOPHELES Meigen. (a) Table of the Species. 1. Wings marked with spots of dark or light-colored scales 2 Wings unspotted; length of the head and body about 3 mm barberi Coq. 2. Front margin of the wings with a patch of whitish scales at a point about three- fourths of the way from ])ase to apex of the wing 5 Front margin of the wings wholly black-scaled 3 3. Sixth, or last, vein of the wings wholly black-scaled 4 Sixth vein white-scaled and with three patches of black scales crucians Wied. 4. Hind tibia? yellowish-white-scaled on the apical fourth; first vein of the wings with a patch of yellow scales before its middle and another on the apex. (Cen- tral America. ) eiseni Coq. Hind tibiie narrowly yellowish-white-scaled at the extreme apex only, first and other veins with black scales only maculipennis Meig. 5. Scales of the last vein of the wings white, those at its apex black; third vein white-scaled and with two patches of black scales 6 Scales of the last vein white, those at each end black; third vein black-scaled, the extreme apex white-scaled punctipennis Say. 6. Fourth vein of the wings black-scaled, the apices of the forks and usually also a patch at the cross veins white-scaled franciscanus McC. Fourth vein white-scaled, the forks (except their apices) and on either side of the cross veins black-scaled pseudopunctipennis Theob. SUBFAMILY ANOPHELIN^. 13 (6) List of the Species and Synonyms. barber i Coq. crucians Wied. eiseni Coq. franciscanus McCracken. maculipennis Meig. annulimanus van der Wulp.a bifurcatus Meigen (1804; not of Linn6, 1758). quadrimaculatus Say. pseudopunctipennis Theob. punctipennis Say. hyemalis Fitch. (c) Unrecognized Species. bifurcatus Linne, nigripes Stseger, and walkeri Theobald. These species are said to have unspotted wings, like barberi, but are larger, have yellow scales on the thorax, etc. pictus Loew. This species, described from Asia Minor, was also recorded from North America by its author, but he evidently mistook some other species for it. No specimen of his species has been reported from this country since the time he published the statement. quinquefasciatus Say {ferruginosus Wied.). This is a synonym of Culex pipiens L. Genus CYCLOLEPPTERON Theobald. Thorax with a velvety black dot near the middle of either side; feet almost unicol- orous, not distinctly banded; wing scales chiefly brown or black, a patch of yel- low ones at a point about two-thirds the length of the front margin and four smaller ones at the apex of the wing grabhami Theob. (C mediopundatus Theob. belongs to the following genus.) Genus NOTOTRICHA, new genus. Thorax with a velvety black dot near the middle of either side and a larger spot in front of and extending upon the scutellum; legs brown-scaled and with many dots and narrow bands of light-colored scales mediopunctata Theob. Genus CELLIA Theobald. (Synonym: Arribalzagia Theobald.) (a) Table of the Species. 1. Hind feet from the middle of the second joint largely or wholly snow-white 2 Hind feet black, mottled with whitish and with bands of the same color at the sutures of the joints maculipes Theob. 2. With a black band at the base of the last joint of each hind ioot..albimanus Wied. Without such a band argyritarsis Desv. {b) List of the Species and Synonyms. albimanus Wied. albipes Theob. cubersis Agramonte. tarsimacvlatus Goeldi. argyritarsis Desv. albitarsis Arrib. maculipes Theob. « At my request Dr. C. Ritsema Cz compared specimens of maculipennis with the type of annulimanus in the Leyden Museum, and informed me that they are identical. 14 CLASSIFICATION OF MOSQUITOES. 2. Subfamily MEGARHININ^ Theobald. (Synonym: Li/nchiellina Lahille. ) Genus MEGARHINUS Desvoidy. (Synonym: Lynchiella Lahille.) (a) Table of the Species. 1. Feet with a white band, at least on the hind ones; middle joint of the male palpi with many yellow scales on the onter side; hairs of the male anlennse long and dense 2 Feet wholly black on at least their upper side; palpi wholly pnrple-scaled; hairs of the male antennic rather short and sparse. (West Indies.) ..violaceus Wied. 2. Middle and front feet wholly black portoricensis Roeder. Middle and usually the front feet with a white band on each nitilus Coq. [b) List of the Species and Synonyms. portoricensis Roeder. ferox Walker (not of Wiedemann), rutilus Coq. violaceus Wied. purpitreus Theob. (c) UNRECO(iNIZED SpECIES. grandiosus Vs'iW., hiemorrhoidalis Fab., and longipes Theoh. These three species have been reported from Mexico. 3. Subfamily PSOROPHORIN^ Mitchell. Genus PSOROPHORA Desvoidy. (Synonym: Chi^soconops Goeldi.) («) Table of the Species. 1. Abdomen yellow or brownish, its scales yellowish 3 Abdomen black, its scales chiefly purple; upper side of the thorax polished black, usually white-scaled toward the sides 2 2. Front and middle femora black, their scales purple except at the narrow apex of each femur, where they are white. ( Middle America. ) cilipes Fab. Front and other femora yellow, yellow-scaled, their })road apices black-scaled. howardli Coq. 3. Veins in the front half of the wings, except toward their apices, deep yellow, their scales of the same color, scales on the front half of the thorax golden yellow. ( West Indies. ) .fulva Wied. Veins and scales of the wings wholly brown, scales in the middle of the upper side of the thorax golden yellow, those toward the sides white ciliata Fab. ciliata Fab. conterrens Walk. molestus Wied. perierrcns Walk. riibidus Desv. cilipes Fab. (6) List of the Species and Synonyms. fulva Wied. flavicosta Walk. ochripes Macq. howardii Coq. SUBFAMILY CULICIN^. 15 (c) Unrecognized Species, scintillans Walk. This species has been recorded from the West Indies. 4. Subfamily CULICIN^ Theobald. (Synonyms: Aedeomyin^r. Theobald, Hxmagoginx Lutz.) Table of the Genera. 1. Claws of the female toothed on at least the front and middle feet; some of the claws of the male also toothed 4 Claws of the female simple 2 2. Palpi of the male at least three-fourths as long as the proboscis 10 Palpi of the male at most only one-half as long as the proboscis. (Middle America. ) 3 3. Head posteriorly with very narrow^ scales and with, a patch of broad ones on each side 18 Head sparsely or densely covered with broad scales posteriorly 21 4. Scales along the sides of the iipi)er surface of the thorax narrow, almost linear, legs never with outstanding scales 6 Scales along the sides of the upper surface of the thorax chiefly rather broad, obovate, hind part of the head with many similar scales scattered about 5 5. Legs devoid of outstanding scales Lepidosia. Legs bearing many outstanding scales, at least on the hind feet, all feet black, the hind ones alone partly white Janthinosoma. 6. Back part of the head densely covered with Ijrcjad, appressed scales except some- times a narrow stripe in the middle 7 Back part of the head sparsely covered with narrow, almost linear scales and with a patch of broad ones on each side 8 7. Clypeus bearing several scales or hairs, scutellum with broad scales only. Stegomyia. Clypeus bare, scutellum with narrow scales only. (Middle America. ) . . Verrcdlina. 8. Wing veins having the outstanding scales narrow, lanceolate, only slightly taper- ing to the base 9 Wing veins having many very broad outstanding scales which t^per strongly to their bases; several of the scales are hollowed out at their apices. Lepidoplatys. 9. Palpi of the male less than one-fourth as long as the proboscis Aedes. Palpi of the male about as long as the proboscis Ochlerotatus. 10. Head densely covered behind with broad, appressed scales, except a narrow stripe in the middle, or else the thorax has six lines of silvery scales 23 Head bearing narrow, almost linear appressed scales behind and with a patch of broad ones on each side; thorax never with lines of silvery scales 11 11. Outstanding scales on the veins behind the first one narrow and of nearly a uni- form width 12 Outstanding scales on at least the apical half of the wings broad, considerably narrowed at their bases 17 12. Feet white at each end of some of the joints, or else wholly black, in which case the abdomen is wholly black-scaled, or else it has cross bands of light-colored scales .♦. 13 Feet white at the bases only of some of the joints, or else wholly black, in which case the abdomen is black-scaled and with the front corners of some of the isegments white-scaled Grabhamia. 16 CLASSIFICATION OF MOSQUITOES. 13. Costa of the wings not spotted 14 Costa black-scaled and with three large spots of pale yellow scales. (Middle America. ) Lutzia. 14. Thorax with two distinct bare stripes near the middle of the upper side; hind cross vein at least it^^ own length from the small cross vein Calicella. Thorax without bare stripes 15 15. Scales of the wings collected into spots; hind cross vein much less than its length from the small cross vein Theobaldia. Scales of the wings uniformly distributed 16 16. Hind cross vein much less than its own length from the small cross vein. Culiseta. Hind cross vein situated at least nearly its own length from the small cross vein Culex. 17. Basal half of the wings having the outstanding scales of the veins narrow and almost linear; proboscis wholly black yManoconion. Basal half of the wings having many broad, outstanding scales on the veins. 20 18. Wing veins having the outstanding scales narrow, almost linear 19 Wing veins having the outstanding scales rather broad, oblanceolate; palpi of the male almost one-half, those of the female less than one-fifth, as long as the pro- boscis Tinolestes. 19. Pal})i in both sexes about one-third as long as the proboscis Micraedes. Palpi in both sexes less than one-fifth as long as the proboscis . Isostomyia n. gen. 20. The out'^tanding scales on the veins of the wings only moderately broad, over twice as long as Inroad, their apices rounded; proljoscis and feet usually with light-colored bands Dniiorliynclms. The outstanding scales chiefiy unusually broad, their apices flat or hollowed out Mansoma. 21. Out^'^itanding scales on the wing veins unusually broad; femora toward their apices bearing several elongate, outstanding scales; body devoid of blue scales. A'i'deomyia. Outstanding scales on the wing veins narrow, almost linear, legs devoid of out- standing scales, head and body chiefly blue s(;aled 22 22. Base of the first submarginal cell nearer to the base of the wing than is that of the second posterior cell; palpi of the male less than one-fifth as long as the proboscis, the abdomen bearing only a few hairs on the under side of the penul- timate segment Hicmagogus. Base of the first submarginal cell noticeably nearer to the apex of the wing than is the base of the second posterior cell ; ])alpi of the male about one-half as long as the pr()])oscis; abdomen of the male with a large cluster of outstanding, l)lunt spines on the under side of the penultimate segment Oicomyia n. gen. 2.3. Scutellum beaiing both broad and narrow scales; head behind covered with broad appressed scales except a median stripe of rather narrow ones; outstand- ing scales on the wing veins narrow. (Middle America. ) Gymnometopa. Scutellum with narrow scales only 24 24. Back of the head covered with broad appressed scales except a median stripe of rather narrow ones; outstanding scales on the wing veins narrow. (Middle America. ) Ilowardina. , Back of the head with narrow scales only; many rather broad, outstanding scales on the wing veins Pneumaculex. Genus LEPIDOSIA Coquillett. Our two species have the scales of the abdomen deep blue, except those of the first segment and a broad, usually interrupted band on the apices of the other seg- ments, which are pale yellow or whitish. Hind feet wholly black n/anescens Coq. Hind feet black, the last joint white mexicana Bell. SUBFAMILY CQLICIN^. 17 Genus JANTHINOSOMA Arribalzaga. (Synonym: Conchyliastes Theobald.) (a) Table of the Species. Last two joints of the feet wholly white 3 Last joint largely or wholly black, the preceding joint chiefly white 2 Scales on the upper side of the thorax yellow varipes Coq. Scales brown, those toward the sides yellow discrucians Walk. Upper side of the thorax yellow-scaled and with a broad stripe of brown scales in the middle lutzii Theob. Upper side of the thorax wholly yellow-scaled posticata Wied. (6) List of the Species and Synonyms. posticata Wiedemann (not of Theobald). musica Say. varipes Coq. johnstonii Grabham. discrucians Walker (not of Giles and Theobald)." arribalzagse Giles. lutzii Theob. albitarsis Neveu-Lemaire (not of Theobald). discrucians Giles and Theobald (not of Walker). (c) Unrecognized Species. terminalis Coquillett (posticata Theobald, not of Wiedemann) , was described from St. Lucia, W. Ind., and differs from all of the other species in that the last joint only of the hind feet is white. Genus STEGOMYIA Theobald. (a) Table of the Species. Thorax marked with a pair of curved silvery stripes forming a figure which some- what resembles a lyre; proboscis unicolorous black, feet black and with white bands at the bases of some of the joints calopus Meig. (6) List of the Species and Synonyms. calopus Meig. calopus Meig — Continued. annulitarsis Macq. konoupi Brulle. bancroftii Skuse. luciensis Theob. elegans Ficalbi. mosquito Desv. exagitans Walk. queenslandensis Theob. excitans Walk. rossii Giles. fasciata Fab. tueiiiatus Wied. formosa Walk, . toxorhijnchus Macq. frater De&v. viridifrons Walk. impatibilis Walk. zonatipes Walk. inexorabilis Walk. {S. sexlineata Theob. belongs to the genus Gymnometopa.) Genus VERKALLINA Theobald. Upper side of the thorax black-scaled, the sides in front of the wings white-scaled. insolita Coq. Upper side of the thorax wholly whitish-scaled laternaria Coq. « The form referred to this species by these two authors has the entire apex of the hind feet wholly white, whereas in his original description Walker expressly states, both in the Latin diagnosis and in the English description, that there is only a sub- apical white band in discrucians, the remainder of the feet being purple. 18 CLASSIFICATION OF MOSQUITOES. Genus LEPIDOPLATYS Coquillett. (a) Table of the Species. Scales of the wiijgs mixed brown and white; feet with broad white bands at the bases of some of the joints, tibiae not distinctly banded squamiger Coq. (b) List of the Species and Synonymy. squamiger Coq. deniedmannii Ludlow. Genus a£D£S Wiedemann. « Upper side of the thorax golden-yellow sealed; abdomen black-scaled and with a band of yellow scales at the bases of the segments; feet unicolorous black. fusciis O. S. {A. sriiiUiii belongs to Wyeomyla.) Genus OCHLEROTATUS Arribalzaga. (Synonyms: CuHcada Felt, Cidicclsa Felt, Eccidex Felt, Protoculex Felt, Pseudoculex Dyar. ) (a) Table of the Species. 1. Ground color of the thorax bright yellow; the scales and bristles of the head and thorax wholly yellow 2 Ground color of the thorax brown belong to this genus.) Genus T^ENIORHYNCHUS Arribalzaga. (Synonym: Coqaillettidia Dyar. ) (a) Table of the Species. 1. Scales of the wings mixed black and light colored, those of the costa not forming distinct spots; scales of the feet black and with white ones at the bases of some of the joints 2 Scales of the wings wholly black. ( Middle America. ) 3 2. Abdomen black-scaled and with a white band at the base of each segment; hind tibite with a broad light-colored band before the apex perturbans Walk. Abdomen golden-yellow scaled and with several black scales on the first three segment*"; hind tibia? devoid of a distinct light-colored band. (Middle Amer- ica. ) .JIaveolus Coq. 3. Feet black-scaled and with white bands at the sutures of some of the joints, femora with a whitish spot or band at a point near three-fourths of their length 4 Feet wholly black except at the base of the first joint, femora devoid of a distinct white mark near three-fourths of their length; abdomen black-scaled and with a white band or median spot at the base of each of the last four segments and a white spot in the front angles of each segment palliatus Coq. 4. Scales on the upper side of the abdomen black and with spots of white ones along the sides 5 Scales on the abdomen wholly black, on the thorax wholly brown. arribalzagse Theob. 5. White spots on the sides of the abdomen situated in the front angles of the seg- ments; scales in the middle of the thorax yellow, those toward the sides chiefly black nigricans Coq. White spots on the sides of the abdomen situated near the middle of the seg- ments; scales of the thorax brown and with several lines of light yellow ones. fasdolatus Arrib. SUBFAMILY CULICIN^. 25 (6) Unrecognized Species. niger Giles, described from Antigua, West Indies. richardi Ficalbi, a European species reported from Canada by Theobald. (c) Species Wrongly Referred to this Genus. antiquse Giles and confinis Arribalzaga belong to Grabhamia; fulvus AA'^iedemann belongs to Psorophora; sierrensis Ludlow belongs to Ochlerotatus. Genus MANSONIA Blanchard. (Synonym: PanopZites Theobald. ) (a) Table of the Species. Third joint of the feet black-scaled, the base narrowly white-scaled, scales of the tibiae not forming distinct spots or bands titillans Walk. Third joint of the hind feet wholly white-scaled, black and yellowish scales of the tibiae collected into distinct bands and spots .fascipes Coq. (6) List of the Species and Synonymy. fascipes Coq. I titillans Walk. ! tseniorhynchus Arrib. (not of Wiedemann). Oemis AEDEOMYIA Theobald. Proboscis with a white ring near the middle; joints of the feet white at their bases; scales of the wings brown, yellow, and white squamipennis Arrib. Genus RSMAGOGTJS Williston. (a) Table of the Species. Scales of the abdomen bluish and with a row of silvery spots along each side, some- times a small median spot of white scales on some of the segments cyaneus Fab. (6) List of the Species and Synonymy. cyaneus Fab. splendens Will. (The following two species were originally described under Hsemagogus. ) Genus CAC0M7IA, new genus. Abdomen having white scales in the middle of the last two segments only. albomaculatus Theob. Abdomen having white scales in the middle of some of the other segments. equinus Theob. Genus G7MN0MET0PA Coquillett. 1 . Upper side of the thorax brown-scaled and with six narrow lines of pale yell o w scales extending the entire length of the thorax; last two joints of the hind feet black. sexlineata Theob. Upper side of the thorax not marked like this 2 2. Last two joints of the hind feet and all the tibiae black 3 Last two joints of the hind feet chiefly white; a spot or band of white scales on the base of at least the first two joints on all of the feet; tibiae with a silvery mark at a point about one-fourth of their length mediovittaia Coq. 3. With a dot of silvery scales in the middle of the front end of the thorax; first two joints of the front feet w'hite-scaled at their bases alhonotata Coq. Without such a dot; front feet wholly black-scaled husckii Coq. 26 CLASSIFICATION OF MOSQUITOES. Genus HOWARDINA Theobald. Feet black-scaled, the base of the first three joints of the hind ones white-scaled; upper side of the thorax white-scaled along the sides, the median portion black- scaled and with four narrow lines of pale yellow scales, the two middle lines united into a single line posteriorly, the outer two lines situated on the posterior half of the thorax n-alkerl Theob. Genus PNEUMACULEX Dyar. Thorax on the upper side velvety-brown-scaled and with six narrow lines of silvery scales .signifer Coq. 5. Subfamily DEINOCERITIN^ Mitchell. Genus DEINOGERITES Theobald. (Synonym: Brachiomyia Theobald.) (a) Table of the Species. Proboscis and feet unicoiorous blackish; scales of the up})er side of the body also blackish cancer Theob. (6) List ok the Species and Synonymy. cancer Theob. VKU/na Theob. 6. Subfamily URANOT^l^IINiE Lahille. Genus URANOTJENIA Arribalzaga. (a) Table of the Species. 1. Thorax with a median line of bluish scales; feet wholly black 2 Thorax without a median line; hind feet white on at least the last two joints and broad apex of the third 3 2. Bluish median line of the thorax prolonged to the scutellum sajyphirina O. S. Bluish line obliterated before reaching the scutellum socialis Theob. 3. Scutellum with blue scales; a patch of blue scales on the thorax a considerable distance in front of the scutellum; feet white at the sutures of many of the joints. ( Middle America. ) gcometricn Theob. Scutellum without blue scales; no patch of blue scales on the thorax in front of it; feet wholly black except the last two joints and apex of the third in the hind ones lowii Theob. (b) Unrecognized Species. apicalis Theobald and 2)ulcherrhii(i Arribalzaga. Both of these have been reported from the West Indies. 7. Subfamily TRICHOPROSOPONINiE Theobald. (Synonyms: Hy loconopinx L.ntz, Dendr omy inx L.utz, Sabettinie BlsLUchard.) Table of the Genera. 1. Male palpi at least one-half as long as the proboscis; clypeus hairy. (Middle America. ) Trichoprosopon. Male palpi less than one-fourth as long as the proboscis; clypeus bare 2 SUBFAMILY TRICHOPROSOPONIN^. 27 2. Veins of the wings having the outstanding scales narrow and nearly linear; hind cross vein situated at least its own length before the small cross vein; legs never fringed with scales Wyeomyla. Veins having many rather broad outstanding scales. (Middle America.) 3 3. Hind cross vein slightly before, opposite, or beyond the small cross vein, each foot bearing two claws 7 Hind cross vein at least twice its own length before the small cross vein; legs never fringed with scales 4 4. With two claw^s on each hind foot; no scales on the posterior end of the thorax below the scutellum 5 With only one claw on each hind foot in both sexes; posterior end of the thorax below the scutellum bearing several broad scales in addition to the bristles.. 6 5. Proboscis shorter than the body, thickened before its apex Bendromyki. Proboscis longer than the body, not thickened toward its apex Phoniomyia. 6. Male proboscis strongly curved in the outer half and with a cluster of scales at each end of the curved portion Limatus. 7. Legs not fringed Sabethoides. Legs fringed in places with outstanding scales in both sexes Sabethes. Genus TRICHOPROSOPON Theobald. (Synonym: Johlotia Blanchard.) Feet wholly black lunata Theob. Feet black, the last four joints of the middle feet and the last two of the hind ones white niiipes Theob. Genus WYEOMYIA Theobald. Proboscis and upper side of the abdomen wholly black-scaled. grayi Theob., pertinans Will., smithii Coq. Genus DENDROMYIA Theobald. Abdomen wholly black-scaled on the upper side; humeri black-scaled; first joint of the hind feet shorter than their tibiae luteoventralis Theob. Genus PHONIOMYIA Theobald. (a) Table or the Species. Abdom.en black-scaled, the front angles of the segments white-scaled. longirostris Theob. (b) List of the Species and Syxonomy. longirostris Theob. trinidadensis Theob. Genus LIMATUS Theobald. (Synonym: SimondellaL,a\ersin.) Thorax golden-yellow-scaled, a median, Y-shaped spot, with the prongs nearest the head, and a large spot above each w^ing violet-blue-scaled durhamii Theob. Genus SABETHOIDES Theobald. Abdomen black-scaled, the under side and front angles of the segments whitish- scaled, the white-scaled front angles prolonged so as to form a crossband which is interrupted except sometimes on the last three segments confusus Theob. Abdomen black -scaled, the under side whitish-scaled, and encroaching on the sides of the dorsum, the border of the two colors strongly undulating undosus Coq. 28 CLASSIFICATION OF MOSQUITOES. Oenns SABETHES Desvoidy. (a) Table of the Species. 1. Front and hind legs not fringed 2 Front and other legs fringed in places with outstanding scales; middle legs white- scaled before and beyond the fringed portion; the broad apices of the hind feet chiefly white-scaled longipes Fab. 2. Legs black-scaled, the apical part of the fringe on the middle legs white. * nitidus Theob. Legs wholly black-scaled locuples Desv. {h) List of the Species and Synonomy. locuples Desv. * j longipes Fab. remipes Wied. nitidus Theob. INDEX. Page. abfitchii, Ochlerotatus 20 abserratus, Ochlerotatus 19 absobrinus, Culiseta 22 Aedeomyia 16, 25 Aedeomyix^ 10, 15 Aedes 15, 18 AiiDiN^ .' 10 sestivalis, Ochlerotatus 21 afflnis, Culex 23 affinis, Theobaldia 22 albimanus, Cellia 7, 13 albipes, Cellia 7, 13 albitarsis, Cellia 13 albitarsis, Janthinosoma 17 albomaculatus, Cacomyia 25 albonotata, Gymnometopa 25 annulatus, Theobaldia 22 annulimanus, Anopheles 13 annulitarsis, Stegomyia 17 Anopheles 12 ANOPHELINiE 10, 11, 12 antiquse, Grabhamia 22 apicalis, Culex 23 apicalis, Uranotsenia 26 argyrotarsis, Cellia 13 arribalzagse, Janthinosoma 17 arribalzagse, Taeniorhynchus 24 Arribalzagia 13 atratus, Melanoconion 24 atropalpus, Ochlerotatus 20 aurifer, Ochlerotatus 19 auroides, Ochlerotatus 21 bancroftii, Stegomyia 17 barberi. Anopheles 12 bifurcatus. Anopheles 13 bigotii, Lutzia 22 bimaculatus, Ochlerotatus 18 biocellatus, Culex 23 bisulcatus, Micraedes 24 boscii, Culex 23 Brachiomyia 26 bracteatus, Ochlerotatus , 19 brittoni, Culicella 22 busckii, Gymnometopa 25 Cacomyia 16, 25 calopus, Stegomyia 8, 17 canadensis, Ochlerotatus 20 cancer, Deinocerites 26 cantator, Ochlerotatus 20 Cellia 12, 13 Chrysoconops 14 ciliata, Psorophora , 8, 14 Page. cilipes, Psorophora 14 cinereoborealis, Ochlerotatus 18 Conchyliastes 17 confinis, Grabhamia 21, 22 confirmatus, Ochlerotatus 19 confusus, Sabethoides 27 consobrinus, Culiseta 22 conterrens, Psorophora 14 Coquillettidia 24 CORETHRID^ 9 crucians. Anopheles 7, 12 cubensis, Cellia 13 cubensis, Culex 23 Culex 16, 23 Culicada 18 Culicella 16, 22 Culicelsa 18 CULICID^ 9 CULICIN^ 10, 15 Culiseta 16, 22 curriei, Ochlerotatus 20 cyanescens, Lepidosia 16 cyaneus, Hsemagogus , 25 Cycloleppteron 12, 13 damnosus, Ochlerotatus 21 Deinocerites 26 Deinoceritin^i; 10, 11, 26 Dendromyia 27 DENDROM YINiE 10, 26 deniedmannii, Lepidoplatys 18 discolor, Grabhamia 21 discrucians, Janthinosoma 17 DiXIDiE 9 dupreei, Ochlerotatus 18, 19 durhamii, Limatus 27 dyari, Culicella 22 Ecculex 18 eiseni, Anopheles 12 elegans, Stegomyia 17 equinus, Cacomyia 25 exagitans, Stegomyia 17 excitans, Stegomyia 17 excrucians, Ochlerotatus 21 fasciata, Stegomyia 17 fasciolatus, Taeniorhynchus 24 fascipes, Mansonia 25 fatigans, Culex 8, 23 Feltidia 21 ferox, Megarhinus 14 ferruginosus, Culex 7, 23 Finlaya 21 fitchii, Ochlerotatus 20 29 30 INDEX. Page. flaveolus, Tseniorh jiichus 24 flavicosta, Psorophora 14 flavipes, Culex 23 fletcheri, Ochlerotatus 20 formosa, Stegomyia 17 franciscanus, Anopheles 12 frater, Stegomyia 17 fulva, Psorophora 14 f uscus, Aedes 18 geometrica, Urauotsenia 26 Grabhamia 15, 21 grabhami, Cycloleppteron 13 grandiosus, Megarhinus 14 Grassia 12 grayii, Wyeomyia 27 Gymnomelopa 16, 25 Hsemagogus 16, 25 H.*:magogin,b 10, 15 haemorrhoidalis, Megarhinus 14 Heteronycha 23 hirsuteron, Ochlerotatus . . . .• 21 howardii, Psorophora 14 Howurdina 16, 26 humilis, Melanoconion 24 hyemalis. Anopheles 13 HYLOCONOPINiE 10, 26 idahoensis, Ochlerotatus 21 imitator, Grabhamia 21 impatibilis, Stegomyia 17 impatiens, Culiseta 22 impiger, Ochlerotatus 1".' implacabilis, Ochlerotatus 21 incidens, Theobaldia 22 incouspicuus, Ochlerotatus 21 indecorabilis, Melanoconion 24 inexorabilis, Stegomyia 17 inllictus, Culex 23 inornatus, Culiseta 22 insolita, Verrallina 17 Isostomyia 16, 24 jamaicensis, Grabhamia 21 janitor, Culex 23 Janthinosoma 15, 17 Joblotia 27 johnstoni, Janthinosoma 17 kelloggii, Culex 23 knabi, Ochlerotatus 18 konoupi, Stegomyia 17 laternaria, Verrallina 17 latisquama, Tinolestcs 24 lativittatus, Ochlerotatus 20 lazarensis, Ochlerotatus 19 Lepidoplatys 15, 18 Lepidosia 15, 16 Limatus 27 locuples, Sabethes : 28 longipes, Megarhinus 14 longipes, Sabethes 28 longirostris, Phoniomyia 27 lowii, Uranotsenia 26 luciensis, Stegomyia 17 lunata, Trichoprosopon 27 luteoventralis, Dendromyia 27 Lutzia 16,22 lutzii, Janthinosoma 17 lutzii, Myzomyia 12 Page. Lynchiella u Lynch i ellin^e 14 maculipennis, Anopheles 12 maculipes, Cellia 13 magna, Deinocerites 26 magnipennis, Culiseta 22 Mansonia 16, 25 mathisi, Ochlerotatus 21 mediopunctata, Nototricha 13 mediovittata, Gymnometopa 25 MEGARHININ.E 10, 11, 14 Megarhinus 14 Melanoconion 16, 23 melanurus, Melanoconion 24 mexicana, Lepidosia 16 Micraedes 16, 24 microsquamosus, Culex 23 mitchellae, Ochlerotatus 19 molestus, Psorophora 8 mosquito, Stegomyia 17 musica, Janthinosoma 8, 17 Myzomyia 12 nanus, Grabhamia 22 nemorosus, Ochlerotatus 21 Neoculex 23 niger, Taniorhynchus 25 nigra, Ochlerotatus 21 nigricans, Taeniorhynchus 24 nigricorpus, Isostomyia 24 nigrii)alpus, Culex 23 nigripcs, Anopheles 13 nigritulus, Culex : 23 nitidus, Sabethes 28 nivipes, Trichoprosopon 27 nivitiirsis, Ochlerotatus 20 Nototricha 12, 13 nubilus, Ochlerotatus 19 ocellatus, Grabhamia 21 Ochlerotatus 15, 18 ochripes, Psorophora 14 onondagensis, Ochlerotatus 21 I)alliatus, Taeniorhynchus 24 pallidohirta, Ochlerotatus 21 palus, Culex 23 Panoplites 25 particeps, Theobaldia 22 penafieli, Culex 23 perterrens, Psorophora 14 pertinans, Wyeomyia 27 perturbans, Isostomyia 24 perturbans, Tseniorhynchus 24 pens, Culex 23 Phoniomyia 27 pictus. Anopheles 13 pinguis, Culiseta 22 pipiens, Culex 7, 8, 23 pleuristriatus, Culex 23 Pneumaculex 16, 26 portoricensis, Megarhinus 14 portoricensis, Ochlerotatus 21 posticata,, Janthinosoma 8,17 pretans, Ochlerotatus 18 Protoculex 18 provocans, Ochlerotatus 21 Pseudoculex 18 pseudopunctipennis, Anopheles 12 INDEX. 31 Page. Psorophora 14 PSOBOPHORIN.E 10, 11, 14 pulcherrima, Uranotaenia 26 pullatus, Ochlerotatus 19 punctipennis, Anopheles 12 punctor, Ochlerotatus 21 pungens, Culex 8, 23 purpureus, Megarhlnus 14 pygmsea, Grabhamia 21 quadrimaculatus, Anopheles 13 quadrivittatus, Ochlerotatus 20 queenslandensis, Stegomyia 17 quinquefasciatus, Culex 7, 23 remipes, Sabethes _. 28 reptans, Ochlerotatus 21 restuans, Culex 23 richardi, Tseniorhynchus 25 rossil, Stegomyia 17 rubidus, Psorophora 14 rutilus, Megarhlnus 14 Sabethes 27, 28 Sabethoides 27 Sabettin^ 26 salinarius, Culex 23 sapphirina, Uranotamia 26 saxatilis, Culex 23 scholasticus, Grabhamia 21 scintillans, Psorophora 15 secutor, Culex 23 serratus, Ochlerotatus 19 sexlineata, Gymnometopa 25 sierrensis, Ochlerotatus 21 signifer, Pneumaculex 26 signipennis, Grabhamia 21 similis, Culex 23 Simondella 27 siphonalis, Ochlerotatus 20 smithii, Wyeomyia 27 socialis, Uranotsenia 26 sollicitans, Ochlerotatus 19 spenceri, Ochlerotatus 18 spissipes, Melanoconion 24 splendens, Hsemagogus 25 Page. squamiger, Lepidoplatys 18 squamipennis, Aedeomyia 25 Stegomyia 15, 17 stimulans, Ochlerotatus 21 subcantans, Ochlerotatus 20 sylvestris, Ochlerotatus 20 taeniatus, Stegomyia 8, 17 Tseniorhynchus 16, 24 taeniorhynchus, Mansonia 25 tseniorhynchus, Ochlerotatus 8, 19 tarsalis, Culex 23 tarsimaculatus, Cellia 13 terminalis, Janthinosoma 8, 17 territans, Culex 23 testaceus, Ochlerotatus 21 Theobaldia 16, 22 Tinolestes 16, 24 titillans, Mansonia 25 tortilis, Ochlerotatus 21 toxorhynchus, Stegomyia 17 Trichoprosopon 26, 27 Trichoprosoponin.e 10, 11, 26 trichurus, Ochlerotatus 20 trinidadensis, Phoniomyia 27 triseriatus, Ochlerotatus 19 trivittatus, Ochlerotatus 18 undosus, Sabethoides 27 Uranotaenia 26 Uranot.1i:niin;1': 10, 11, 26 urichii, Melanoconion 23 variegata, Theobaldia 22 varipalpus, Ochlerotatus 20 varipcs, Janthinosoma 17 Verrallina 15, 17 violaceus, Megarhinus 14 viridifrons, Stegomyia 17 vittatus, Ochlerotatus 20 walkeri. Anopheles 13 walkeri, Howardina 26 willistoni, Culex 23 Wyeomyia 27 zonatipes, Stegomyia 17 iiwivERSITY OF FLORIDA Illlllll 3"l262 09229 6267