BIRDvS OF NORTH AND MIDDLE AMERICA. 153 



booted (noiisrutellate) or with sciitella of acrotarsium faintly defined ; 

 middle toe, with claw, slightly more than three-fifths as long as 

 tarsus (as long as or slightly longer than whole culmen) ; outer toe, 

 without claw, reaching to or slightly beyond subterminal articula- 

 tion of middle toe, the inner toe slightly shorter; hallux shorter 

 than iinier toe, considerably but not conspicuously stouter; basal 

 phalanx of middle toe united for about half its length to outer toe, 

 for less than half to inner toe; claws rather short, slightly curved, 

 that of hallux decidedly shorter than the digit. Plumage full, soft, 

 and blended, that of rump and flanks (especially the former) more 

 elongated antl lax, that of pileum short, with feathers distinctly 

 outlined ; a very small naked postocular space. 



Coloratioti. — Above olive (more grayish or dusky on pileum) the 

 back sometimes streaked with buff, the wings sometimes varied 

 witli buff or tawny; a buff orbital ring (indistinct or obsolete in 

 H. dives) ; under parts with at least throat and abdomen white, 

 the chest, sides, and flanks more or less buffy, ocliraceous, or tawny, 

 the first (at least) more or less streaked with black; sexes alike. 



Range. — Nicaragua to Cayenne, southeastern Brazil, and western 

 Ecuador. 



(About nine species. °) 



KEY TO THE SPECIES AND SUBSPECIES OF HYLOPEZUS. 



a. Wing-coverts unspotted; chest deep tawny-ochraceous, very narrowly streaked 

 with bhick. (Caribbean slope of Nicaragua and Costa Rica.) 



Hylopezus dives (p. 154). 

 aa. Wing-coverts conspicuously spotted with buff or ocliraceous; chest white or buffy, 

 very heavily streaked with black. 

 b. Flanks light grayish buffy, streaked with dusky. {Hylopezus perspicillatus.) 

 c. Back and scapulars conspicuously streaked with buff. (Eastern Panama.) 



Hylopezus perspicillatus perspicillatus (p. 155). 



cc. Back and scapulars inconspicuously or not at all streaked. (Western Panamii 



and southwestern Costa Rica.). . .Hylopezus perspicillatus lizanoi (p. 156). 



bb. Flanks bright buffy or tawny-buff, unstreaked. 



c. Chest more heavily and more extensively streaked with black; buffy spots on 



wing-coverts more sharply defined ; outer web of primaries brownish tawny. 



(Caribbean slope of Costa Rica and Nicaragua.) 



Hylopezus perspicillatus intermedius (p. 15G). 



cc. Cliest less heavily and less extensively streaked with black; buffy spots on 



wing-coverts less sharply defined; outer web of primaries olive-brown. 



(Guiana and Amazon Valley.) Hylopezus macularius (extralimital).6 



a Of these I have examined only H. dives (Sclater), H. intermedius (Ridgway), 

 H. lizanoi (Cherrie), //. perspicillatus (Lawrence) and H. macidarius (Teinminck). 



b Pitta maculuria Teinminck, PI. Col., ii, livr. 85, July, 1830, in text to Genus Pitta, 

 sp. 11 (Brazil). — C[olobathris] macularia Cabanis, in Wiegm. Archiv fiir Naturg., 1847, 

 pt. i, 217. — Grallaria macularia Lafresnaye, Rev. Zool., 1842, 334; Sclater, Cat. Birds 

 Brit. Mus., XV, 1890, 324. 



