BIRDS OF NORTH AND MIDDLE AMERICA. 141 
dle toe, the inner toe reaching about to the joint; hallux about as 
long as inner toe, but much stouter; basal phalanx of middle toe 
united to outer toe for greater part of its length, to inner toe for less 
than half its length; claws moderate in size and curvature, that of 
the hallux shorter than the digit. Plumage full, with feathers broad 
and distinctly outlined, those of rump and flanks more elongated, 
blended, and lax; feathers of pileum rather stiff, slightly elongated; 
an elongated, narrow, naked postocular space. 
Coloration.—Head black, with more or less of chestnut on lateral 
portion, the throat sometimes spotted with brown and whitish; 
above brown, the back streaked with black, wing-coverts with sub- 
apical spots of buff or light fulvous margined with black; under parts 
broadly barred or squamated with white and black. 
Range.—Eastern Costa Rica to northwestern Ecuador. (Two 
species.) 
KEY TO THE SPECIES AND SUBSPECIES OF PITTASOMA. 
a. Pileum, including superciliary and supra-auricular regions, uniform black. 
b. Smaller (wing 93-99.5 in adult male, 93.5-95.5 in adult female); auricular and 
suborbital regions wholly chestnut. (Panamé4.) 
Pittasoma michleri michleri (p. 141). 
bb. Larger (wing 99.5-115 in adult male, 97.5-100.5 in adult female); auriculars and 
suborbital regions black, or mostly so. (Costa Rica.) 
Pittasoma michleri zeledoni (p. 142). 
aa. Pileum rufous, bordered laterally by a black superciliary stripe. (Northwestern 
Ecuador.) 
Pittasoma rufopileatum (extralimital).¢ 
PITTASOMA MICHLERI MICHLERI Cassin. 
MICHLER'S ANTPITTA. 
Adult male.—Pileum, including upper half of lores and whole of 
superciliary region, uniform black (slightly glossy); back, scapulars, 
rump, and upper tail-coverts olive-brown to vandyke brown, the first 
broadly but not sharply streaked with black (the feathers sometimes 
also narrowly squamately margined with the same), and with narrow 
buffy shaft-streaks; tail deep chestnut-brown; wings deep chestnut- 
brown, the middle and greater coverts with a small subterminal 
transverse spot of whitish or buffy, inclosed between a small black 
spot and a narrow terminal bar;? tertials with a more or less distinct 
apical spot of buff or tawny; outer webs of primaries lighter chestnut- 
brown than the general color; lower half of lores dull white, usually 
somewhat flecked with dusky; auricular and malar regions. uniform 
deep chestnut, the latter, however, partly mixed with black, especially 
4 Pittasoma rufopileatum Hartert, Novit. Zool., viii, no. 3, Oct. 5, 1901, 370 (Salidero, 
Bultn, n. w. Ecuadér; coll. Tring Mus.); ix, 1902, 615, pl. 8. 
This species I have not seen. 
5 Sometimes a few of the lesser coverts have similar but smaller markings. 
