BIRDS OF NORTH AND MIDDLE AMERICA. 475 



cc. Smaller (wing 55-57, tail 45-46, tarsus 1()-1().5); under ])arts l)uff, the 

 throat .similar but- slightly paler. 



Pyrocephalus dubius, adult female (p. 480) 



cc. Pileum and hack l)r()\\nisli gray nr grayish !)r(i\vn stiuamated wilh white or 



huffy. (Young. ) 



d. ITnder parts white (willi or wilhcnil ydldW tingi^ posteriorly) the chest and 



sides more or less hroadly and distinctly streaked with grayish browner 



dusky Pyrocephalus rubinus and sujjspecies, young 



dd. Tiider parts yellow or l)uffy, with or without white on throat or streaks on 

 chest and sides. 

 e Throat white, in contrast with yellow of ol her under parts. 



Pyrocephalus nanus, young (p. 479) 

 ee. Throat buff, like rest of under parts. . .Pyrocephalus dubius. young (p. 481) 

 aa. ITnder i)arts uniform sooty brown or .«ooty gray in l)ot]i sexes. (Peru.) 



Pyrocephalus obscurus (extralimital).o 



PYROCEPHALUS RUBINUS MEXICANUS (Sclater). 



VERMILION FLYCATCHER. 



Adult male. — Wliole pileum intense poppy red, scarlet-vermilion, 

 or scarlet; entire under parts similar but rather lighter, sometimes 

 varying toward orange or intermixed with that color; axillars and 

 under wing-coverts pale brownish gray, margined and tipped with 

 pink or light scarlet; back, scapulars, lesser wing-coverts and rump 

 plain grayish brown (deep hair brown, sometimes of a more or less 

 distinct purplish hue) ; lores and auricular region deep grayish brown, 

 confluent with that of neck, forming a longitudinal band separating 

 the red of pileum from that of malar region, chin, and throat; upper 

 tail-coverts dusky; wings (except lesser coverts) and tail dusky or 

 gra^ash black with deep grayish edgings, the middle and greater wing- 

 coverts and inner secondaries ("tertials") margined terminally with 

 pale brownish gray; outer web of outermost rectrix sometimes edged 

 (more or less broadly) \\dtli whitish, and all the rectrices sometimes 

 narrowly margined at tip with same; bill brownish black, the mandi- 

 ble more brownish basally; iris brown; legs and feet bro\Miisli black; 

 length (skins), 121-145 (132); wing, 69.5-86 (78.9); tail, 49-62 (56.9); 

 exposed culmen, 12-14 (12.5); tarsus, 14.5-17 (15.8); middle toe, 9- 

 10.5 (9.7).'' 



o- Pyrocephalus obscurus Gould, Zool. Voy. "Beagle," iii, 1841, 45 (Lima, Peru; coll. 

 Brit. Mus.); Sclater, Proc. Zool. Soc. Lond., 1859, 46; 1864, 176 (vicinity of Mexico 

 City— doubtles an error; crit.); 1866, 99 (Lima); Cat. Am. pirds, 1862, 228; Cat. Birds 

 Brit. Mus.. xiv, 1888, 215 (Lima, Callao and Tambo Valley, Peru; Berlep.sch and Stolz- 

 mann, Proc. Zool. Soc. Lond., 1893, 381 (Lima and lea, Peru). — M[yiarchns]atropur- 

 pureus Tschudi, Fauna Peruana, Aves, 1846, 156 (Peru). 



This is almost certainly a melanism of the form of P. r]ihimis which occurs in Peru, 

 many specimens showing more or less admixture of l)right scarlet feathers on those 

 parts which are red in the adult male of the normal phase. 



b Thirty-eight specimens. 



