804 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



gg. Rump and upper tail-coverts ochraceous-yellow or dull chrome yel- 

 low, strongly contrasted with cinnamon-brown of back; anterior 

 under parts less distinctly streaked; averaging smaller (wing of 

 male 88.5-93.5, tail, 68.5-75.5). (Pacific slope of Nicaragua and 



Costa Rica.) Attila citreopygus luteolus (p. 810) 



e.e. AA'eraging smaller, with relativ(>ly larger bill and feet; color of under parts 

 paler (mostly white) with very little if any yellow on chest or sides, the 

 chest indistinctly streaked; color of l)ack, etc.. lighter or more buffy 

 brown. 

 /. Rump and upper tail-coverts paler (ochery yellow); pileum usually 

 grayish and broadly streaked; streaks on throat more dusky; color of 

 sides, flanks, axillars, and under wing-coverts yellowish buff or buff- 

 yellow. (Yucatan, including Meco, Ilolbox, and IMujeres islands, to 



coast of British Honduras.) Attila citreopygus gaumeri (p. 811) 



ff. Rump and upper tail-coverts darker (tawny-ochraceous) ; pileum usually 

 brown and narrowly streaked; streaks on throat more grayish; color 

 of sides, flanks, axillars, and under wing-coverts usually buffy cinna- 

 mon or cinnamon- buff. (Cozumel Island, Yucatan.) 



Attila citreopygus cozumelae (p. 812) 



ATTILA TEPHROCEPHALUS Ridgway. 

 GRAY-HEADED ATTILA. 



Somewhat like the grayer or more ohvaceous examples of A. citre- 

 opygus citreopygus , but pileum mouse gray, lower throat, chest, and 

 sides of breast uniform light mouse gray or olive-gray, throat with 

 fewer and less distinct dusky streaks, and larger wing-coverts much 

 less distinctly tipped with brown. 



Adult female. — Pileum deep mouse gray, narrowly and (except on 

 forehead) indistinctly streaked with dusky; hinchieck, sides of neck, 

 and upper back greenish olive, passing gradually into olive-brown or 

 bister on scapulars and lower back; rump and vipper tail-coverts 

 naples yellow, the upper portion of the former ocher yellow; tail 

 deep grayish brown (between broccoli and prouts brown), becoming 

 lighter and more cinnamomeous at extreme base ; wings dusky grayish 

 brown, becoming brownish olive on secondaries and margins of greater 

 and middle wing-coverts; chin dull grayish white; throat, chest, and 

 sides of breast light mouse gray, the upper throat with a few narrow 

 whitish and broader dusky streaks, the upper chest with a very few 

 narrow and indistinct streaks of yellowish white; sides light gray, 

 tinged with olive, passing into yellowish ocher on flanks; breast 

 (except laterally), abdomen, and untler tail-coverts white, the first 

 broadly streaked with pale gray (this predominating anteriorly) and 

 with occasional dusky shaft-lines; anal region antl anterior under 

 tail-coverts pale (primrose) yellow; axillars and under wing-coverts 

 light wood brown margined with light bufl"y yellow; inner webs of 

 remiges grayish brown, j^assing into pale pinkish brown on edges; 

 bill horn color, the mandible paler; legs and feet horn color (in dried 



