f -Natural fiatonj M1IRAKY ffljjtragu FIELD MUSEUM OF NATURAL HISTORY. PUBLICATION 190. ORNITHOLOGICAL SERIES. VOL. I, No. 10. DESCRIPTIONS OF APPARENTLY NEW SOUTH AMERICAN BIRDS, WITH NOTES ON SOME LITTLE KNOWN SPECIES BY CHARLES B. CORY Curator of Department of Zoology. CHICAGO, U. S. A. August 30, 1916. DESCRIPTIONS OF APPARENTLY NEW SOUTH AMERICAN BIRDS, WITH NOTES ON SOME LITTLE KNOWN SPECIES BY CHARLES B. CORY Since the publication of my last paper on South American birds,* further study of the collections secured by the members of the Museum's expeditions in South America has brought to light a number of new forms which it seems advisable to describe at the present time, as the detailed report on the results of the expeditions will not be ready for publication for some months. Conopophaga lineata cearae subsp. nov. Type from Serra Baturite, Ceard, Brazil. Adult male, No. 47264, Field Museum of Natural History. Collected by R. H. Becker, July 18, Approaches nearest to C. I. lineata (Wied), but differs in having the crown more rufous brown, the crown being lighter and more rufous brown than the back; lores and a narrow frontal streak black; post- ocular pencil of elongated feathers entirely pure white, without any trace of grayish at the base; throat and breast orange brown, brighter than in lineata; middle of belly pure white ; flanks and under tail coverts approaching raw sienna. Wing, 70; tarsus, 22 mm. (tail imperfect in type specimen). Thamnophilus doliatus dearborni Cory. More specimens have been received of this apparently well marked subspecies. Compared with specimens from Merida (which I assume to represent typical T. d. nigrescens Lawr.), T. d. dearborni (from Encontrados, Zulia, Venez.) may be readily distinguished by the more heavily banded abdomen and flanks, heavier marked throat, etc. The female is also darker in coloration. Dysitharnnus mentalis leucobronchialis subsp. nov. Type from near Lagoa Santa, Minas Geraes, Brazil. Male (not fully adult), No. 49118, Field Museum of Natural History. Collected by R. H. Becker, January 24, 1914. * Field Mus. Nat. Hist. Pub., Ornith. Series, Vol. I, No. 9, Aug. 7, 1915. 337 338 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. Similar to D. m. mentalis (Temm.), but wing longer and entire throat whitish gradually shading into the pale yellowish of the under parts. Wing, 60; tail, 42; bill, 13 mm. I describe this new subspecies with hesitation, as the single specimen secured is somewhat immature; but the gray crown, olive gray back, and coloration of the under parts do not agree with immature specimens of D. m. mentalis which I have seen. Dysithamnus schistaceus hellmayri subsp. nov. Type from Rioja, Peru. Adult male, No. 49113, Field Museum of Natural History. Collected by W. H. Osgood and M. P. Anderson, July 4, 1912. Approaches D. s. heterogynus in general coloration, being darker gray than D. s. schistaceus. The bend of the wing and upper wing coverts are uniform schistaceous and there is apparently no white inter- scapular patch. The bill is heavier and longer than that of D. s. schistaceus and the feathers on the crown have black centers. The under wing coverts (except near the border) are yellowish white. Wing, 68; tail, 54; bill (culmen), 19; depth of bill at nostril, 8 mm. This is not unlikely the bird referred to by Hellmayr as "subspecies b" from Yurimaguas (Nov. Zool., 1907, p. 62), but I do not find that it has been given a name. Cercomacra huallagae sp. nov. Type from Lagunas, Lower Huallaga River, Peru. Immature male, No. 41119, Field Museum of Natural History. Collected by M. P. Anderson, October 16, 1912. Entire upper parts slate gray, with the usual concealed patch of white on the interscapular region; crown more dusky and the back more bluish slate color. Feathers of the throat largely black, but more or less mixed with gray (probably due to immaturity). Breast and sides of body slate gray, becoming paler on the belly, and the feathers of the lower belly very narrowly tipped with whitish; upper wing coverts and bend of wing immaculate, with no white anywhere. Tail black, more or less tinged on the upper surface with slate color. Tail feathers, except the middle ones, very narrowly tipped with white. Wings blackish, the upper coverts like the back and the exposed edges of the quills very narrowly edged with slate color. Wing, 73; tail, 56; bill, 14 mm. AUGUST, 1916. NEW SOUTH AMERICAN BIRDS CORY. 339 Although the coloration of the throat would indicate immaturity, I can not refer this bird to any described form. The general coloration is much more slate color than any of the allied species. The longer wing and grayer coloration will distinguish it at once from approximans, tyrannina, sclateri, etc. The female has the throat whitish mottled with dusky, in this approaching carbonaria, but the belly is buffy ochraceous and much paler than in tyrannina. Female: Wing, 71; tail, 53 mm. Myrmeci/a berlepschi peruviana subsp. nov. Type from Yane Yacu, near Yurimaguas, Peru. Adult male, No. 49121, Field Museum of Natural History. Collected by M. P. Ander- son, September 9, 1912. Similar to M. b. berlepschi Ridgway from Chimbo, N. W. Ecuador, but larger; wing longer, and bill heavier. It also differs in having much less white on the bend of the wing. Wing, 92; tail, 67; bill, 22; tarsus, 30 mm. Compared with the type of M. b. berlepschi preserved in the U. S. National Museum. Furnarius leucopus cearae subsp. nov. Type from Quixada, Ceara, Brazil. Adult male, No. 49120, Field Museum of Natural History. Collected by R. H. Becker, June 27, 1913. General coloration approaching F. I. assimilis and the rufous markings on the primaries about the same; but differs in having the entire upper mandible dark brown; the crown of the head sepia brown (approaching that of F. I. leucopus), with the forehead showing a tinge of rufous. Back, rump, and tail approaching assimilis in coloration, but slightly more orange brown; middle of abdomen and exposed under tail coverts purer white; the basal portion of the larger under tail coverts brownish black, not distinctly brown as in assimilis; legs and feet pale. Wing, 93; tail, 65; oilmen, 19; tarsus, 23 mm. Two specimens of this subspecies were also taken at Serra Baturite', Ceara, Brazil, by Mr. Becker. Schizoeaca fuliginosa peruviana subsp. nov. Type from mountains east of Balsas, Peru (alt. 10,000 feet). Adult male, No. 47677, Field Museum of Natural History. Collected by W. H. Osgood and M. P. Anderson, May 20, 1912. 340 FIELD MUSEUM or NATURAL HISTORY ORNITHOLOGY, VOL. I. Similar to 5. /. fuliginosa from Colombia, but differs in having the under parts more gray and lacking the olive tinge, except on the flanks, and the upper parts somewhat brighter and more rufescent than in that species. Forehead with a slight grayish tinge; outer webs of outer primaries paler and more rufescent, the rufous reaching the shaft of the feather on at least the second and third (outer) primaries. Wing averaging longer. Wing, 59; bill, ii ; tarsus, 24 mm. * Synallaxis cinnamomea cearensis subsp. nov. Type from Jua, near Iguatu, Ceara, Brazil. Adult male, No. 45624, Field Museum of Natural History. Collected by R. H. Becker, July 31, Similar to 5. c. cinnamomea, but paler; upper parts decidedly lighter rufous, and the tail, especially the under surface, much paler rufous. Wing, 58; tail, 60; oilmen, 8 mm. Siptornis orbignii neglecta subsp. nov. Type from Macate, central Peru (alt. about 10,000 feet). Adult male, No. 49111, Field Museum of Natural History. Collected by M. P. Anderson, February 13, 1914. Approaches S. orbignii (Reich.) in having the crown like the back, no black points on the throat, and in having the broad basal rufous band on the secondaries; but differs in having the under parts more grayish brown (less pale cinereous) and the patch on chin and upper throat deep chestnut rufous (much darker and more chestnut rufous than in either orbignii or ottonis), and the rufous on the upper tail coverts, tail and wings is darker. Wing, 62; tail, 82; bill, 15 mm. Automolus leucophthalmus sulphurascens (Licht.). Five specimens from Rio das Velhas, Minas Geraes, Brazil, differ from typical A. I. leucophthalmus (type in American Museum of Natural History), while specimens from Bahia agree with the type. The type of A. 1. leucophthalmus very likely came from Bahia and the Minas Geraes specimens probably represent A. I. sulphurascens (Licht.), which should be revived. They differ from specimens from Bahia in having the tail and rump decidedly paler and much brighter rufous; the under wing coverts are paler. AUGUST, 1916. NEW SOUTH AMERICAN BIRDS CORY. 341 Xiphocolaptes promeropirhynchus iguatensis subsp. nov. Type from Jua, near Iguatu, Ceara, Brazil. Adult male, No. 49117, Field Museum of Natural History. Collected by R. H. Becker, September i, 1913. General marking approaching X. p. promeropirhynchus, but colora- tion quite different and very much paler on the under parts. The wings and tail are decidedly lighter rufous (less chestnut rufous) ; crown and back grayish olive brown, the crown slightly darker and with narrow whitish shaft streaks; rump and upper tail coverts bright rufous; under parts pale grayish brown, streaked with white; middle of throat dull whitish; no black spots or bars on belly, these being replaced by a few obscure (almost obsolete) small spots and broken bars of pale grayish brown; under wing coverts pale rufous, irregularly barred with black; bill blackish at the base, the rest pale horn color. Wing, 126; tail, no; bill, 41 mm. Other examples of this very distinct form were taken near Jua by Mr. Becker. I have not seen X. p. berlepschi Snethlage, but from the description it is quite different. Picolaptes f uscus atlanticus subsp. nov. Type from Serra Baturite, Ceara, Brazil. Male, No. 49116, Field Museum of Natural History. Collected by R. H. Becker, July 13, 1913. Similar to P. f. f uscus (VieilL), but differs in being larger; the rump and tail more chestnut rufous; the throat tinged with pale buff, and the under parts more tinged with ochraceous. The feathers of the throat are very narrowly edged with dusky. Wing, 87; tail, 80; bill, 29 mm. Campylorhamphus trochilirostris major Ridgway* Several specimens of this well marked subspecies (which agree per- fectly in size and coloration with the type specimen in the U. S. National Museum) were secured at Jua and Serra Baturite, Ceara, Brazil. The exact type locality being previously unknown, being given as "Brazil," I now designate for it the Province of Ceara, Brazil. Taenioptera cinerea obscura subsp. nov. Type from Sao Marcello, Rio Preto, Bahia, Brazil. Adult male, No. 49125, Field Museum of Natural History. Collected by R. H. Becker, March 18, 1914. *Bds. N. and M. Am., V, p. 269, 1911. 342 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. Similar to T. c. cinerea Vieill. (nengeta auct., nee. Linn.), but larger; wing longer, and upper parts and breast much clearer gray. Wing, 140; tail, 100; tarsus, 27 mm. Muscisaxicola ruf ivertex ruficrissa subsp. nov. Type from Macate, central Peru (alt. about 10,000 feet). Adult male, No. 49126, Field Museum of Natural History. Collected by M. P. Anderson, March 3, 1914. Similar to M. rufivertex, but crown patch more chestnut and more extensive, and under tail coverts tinged with pale rufous. Wing, no; tail, 72; tarsus, 24; bill, 15 mm. A puzzling specimen from Cajamarca, Peru, approaches M. r. occipitalis Ridgway in coloration of tail, upper tail coverts, and paler crown patch, but the under tail coverts are tinged with rufous as in ruficrissa. Todirostrum cinereum cearae subsp. nov. Type from Serra Baturit^, Ceara, Brazil. Male, No. 49127, Field Museum of Natural History. Collected by R. H. Becker, July 18, Similar to T. c. cinereum, but smaller; wings and tail shorter, and bill smaller. Edgings of wing coverts and primaries white instead of yellow. Wing, 40; tail, 34; bill, n mm. It is evident that these differences are not due to immaturity, as the crown is entirely black (not gray on the back part as in immature birds of T. c. cinereum) and young birds of T. c. cinereum have the wing coverts edged with buffy. Myiodynastes luteiventris vicinior subsp. nov. Type from Yurimaguas, Peru. Male, No. 44859, Field Museum of Natural History. Collected by M. P. Anderson, October 4, 1912. Similar to M. I. luteiventris Sclater, but smaller, and the dusky stripe on middle tail feathers much narrower; outer tail feathers plain rufous with only the shafts dark. Wing, 104; tail, 82; bill, 19 mm. The type specimen has the bases of the middle crown feathers edged with pale buff which may be due to immaturity. Compared with a series of immature M. I. luteiventris, the same differences exist in the AUGUST, 1916. NEW SOUTH AMERICAN BIRDS CORY. 343 tail markings, especially the middle feathers. The type also agrees with adults in lacking the buffy marking on the nape, which is present in young birds of luteiventris. Myiarchus tyrannulus pallescens subsp. nov. Type from Jua, Ceara, Brazil. Adult male, No. 48803, Field Museum of Natural History. Collected by R. H. Becker, August 21, Similar to M. t. tyrannulus, but belly somewhat paler yellow and breast much paler ashy; throat ashy white, the middle portion almost white. Back much paler than in M. t. bahia, and more grayish olive than in M. t. tyrannulus; outer tail feather with a very faint trace of pale rufous bordering the inner web. Wing, 92; tail, 90; bill, 20 mm. Pachyrhamphus niger tobagensis subsp. nov. Type from Tobago Island, West Indies. Adult male, No. 21016, Field Museum of Natural History. Collected by W. W. Brown, May 9, 1892. Intermediate in coloration between P. n. niger and P. n. cinereiven- tris; darker than the latter (compared with specimens from Santa Marta, Colombia and northern Venezuela) and much more grayish (less blackish) on the under parts than P. n. niger. Wing, 76; tail, 60; bill, 13 mm. The female is paler and more grayish than the females of either niger or cinereiventris and the wing coverts are tipped with white. For many years I have been satisfied that the Tobago form of this bird should be subspecifically separated from birds from Trinidad and the mainland, but having only a single female I hesitated to do so. An examination of a male, however, still further confirms my belief, and on comparing it with large series of typical P. n. niger and P. n. cinerei- ventris I am convinced that the Tobago bird is worthy of subspecific recognition. Polioptila livida cearensis subsp. nov. Type from Jua, near Iguatu, Ceara, Brazil. Adult male, No. 49127, Field Museum of Natural History. Collected by R. H. Becker, August Approaches nearest to P. I. leucogaster in coloration of upper parts and head marking, but throat and under parts are white, tinged with 344 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. cream color with only a faint trace of ashy on sides of the breast; outer wing coverts broadly edged with white; white end of third outer tail feather more extensive. Wing, 52; tail, 53; bill, 10 mm. Cistothorus platensis tamas subsp. nov, Type from Paramo de Tama (head waters of the Tachira River), Venezuela. Adult male, No. 44860, Field Museum of Natural History. Collected by W. H. Osgood and S. G. Jewett, March i, 1911. General coloration more rufous brown than either C. p. mquatorialis, meridcs, or apolinari, and decidedly smaller than the last; crown brown with only a slight tinge of rufous and obscurely streaked with dusky. Coloration of upper parts approaching cequatoriatis, but pale streaks on the back more buffy; under parts much darker rufous brown, with only a slight indication of whitish on the middle of belly and throat; rump plain. Wing, 48; tail, 47; bill, 12 mm. Five males and one female examined from the type locality. Troglodytes musculus beckeri subsp. nov. Type from Serra Baturit^, Ceara, Brazil. Adult male, No. 49115, Field Museum of Natural History. Collected by R. H. Becker, July 14, 1913. Similar to T. m. musculus, but differs in having the under parts paler and more buffy rufous; under tail coverts clear ochraceous rufous with- out spots or bars; crown and back paler and more grayish than in mus- culus and the upper tail coverts brighter rufous. From T. m. clarus it may be at once distinguished by its brighter rufous upper tail coverts and more rufous and unmarked under tail coverts, more grayish tinged back and the pronounced rufous buff coloration of the sides of the body. Wing, 52; tail, 43; bill, 13 mm. Planesticus rut iventer juensis subsp. nov. Type from Jua, near Iguatu, Ceara, Brazil. Adult male, No. 49114, Field Museum of Natural History. Collected by R. H. Becker, August Similar to P. r. rufiventer from Minas Geraes and Rio de Janeiro, but differs in having the upper parts decidedly more grayish olive and the belly and flanks paler and more ochraceous rufous. Wing, 124; tail, 114; bill, 20; tarsus, 33 mm. Eight specimens examined from the type locality. AUGUST, 1916. NEW SOUTH AMERICAN BIRDS CORY. 345 Anthus bogotensis immaculatus subsp. nov. Type from mountains east of Balsas, Peru (alt. 10,000 feet). Male, No. 44526, Field Museum of Natural History. Collected by W. H. Osgood and M. P. Anderson, May 19, 1912. Similar to A. b. bogotensis, but differs in having the black markings of the upper parts less pronounced and the sides and flanks immaculate (without streaks). Wing, 76; tail, 55; tarsus, 22 mm. Saltator striatipectus peruvianus subsp. nov. Type from Hda. Limon, 10 miles west of Balsas, N. Peru. Male, No. 49104, Field Museum of Natural History. Collected by W. H. Osgood and M. P. Anderson, May 6, 1912. Similar to 5. s. striatipectus Lafr. from Colombia, but crown, sides of head (including ear coverts) and sides of throat olive green like the back; streaks on under parts heavier and darker; upper parts somewhat deeper olive and rump less tinged with grayish. Wing, 90; tail, 88; bill, 18 mm. Seven specimens examined from the type locality. Coryphospingus pileatus brevicaudus subsp. nov. Type from Margarita Island (off Venezuela). Adult male, No. 38540, Field Museum of Natural History. Collected by John F. Ferry, March 2, 1909. Similar to C. p. pileatus, but tail much shorter and general size averaging smaller. Lores whitish, decidedly less grayish than in Brazil- ian specimens of C. pileatus. The type specimen has the nape black, but other specimens from Margarita Island do not show this, although the nape and upper back are darker than in Brazilian specimens. Wing, 62; tail, 49; bill, 12; tarsus, 19 mm. Tangara cyanocephala cearensis subsp. nov. Type from Serra Baturite, Ceara, Brazil. Adult male, No. 49106, Field Museum of Natural History. Collected by R. H. Becker, July T. cyanocephala corallina Berlepsch from Bahia, but differs in having the crown darker and more purplish blue, the shorter upper tail coverts conspicuously tipped with bright light blue (forming a band 346 FIELD MUSEUM or NATURAL HISTORY ORNITHOLOGY, VOL. I. about 5 mm. in width), pale blue separating the black of the forehead from the dark blue of the crown only slightly indicated, and size some- what larger. Wing, 56; tail, 49; bill, 9 mm. Schistochlamys atra grisea subsp. nov. Type from Rioja, Peru. Adult female, No. 49105, Field Museum of Natural History. Collected by W. H. Osgood and M. P. Anderson, July 8, 1912. Similar to 5. a. atra from Guiana, but general coloration darker and more slaty gray, most pronounced on the under parts, especially on the flanks and under tail coverts. Wing, 86; tail, 84; bill 15 mm.