BIRDS OF NORTH AND MIDDLE AMERICA. (S()5 



skins); length (skin), 157; wing, 83.5; tail, (U.5; PXj)ose(l cuhnen, 

 about 21 ;« tarsus, 25; middle toe, 16.5.'' 



Southeastern Costa Rica (Talamanca). 



The single specimen from which the above description is taken is 

 so very different in coloration from A. citrcopygus that, in the absence 

 of any specimens approaching it in a very large and variable series 

 of the latter, I feel compelled to consider it, for the present at least, 

 as specifically distinct. 



Attila tephrocephala Ridgway, Proc- Biol. Soc. Wash., xix, 190(1, 1 IK (Talamanca, 

 Costa Rica; coll. U. S. Nat. Mns.). 



ATTILA CITREOPYGUS CITREOPYGUS i Bonaparte). 

 SCLATERS ATTILA. 



Adult male. — Pileum and hindneck greenish olive or dull grayish 

 olive-green, more or less distinctly streaked with dusky, the olive 

 sometimes (in younger individuals ?) replaced by olive-brown or even 

 reddish sepia brown; back and scapulars plain reddish Vandyke 

 brown to olive-brown (nearly raw-umber), usually brighter or more 

 reddish posteriorly and more olivaceous anteriorly; rump and upper 

 tail-coverts plain light chrome-yellow to light ochraceous-yellow, 

 usually more ochraceous on upper part of rump; tail grayish browTi 

 or brownish olive terminally, becoming gradually more buffy brow^n 

 or cinnamomeous basally (more or less extensively) ; wings dusky gray- 

 ish brown, the middle and greater coverts tipped or terminally mar- 

 gined with light buffy brown, cinnamon-brown, or russet, the inner 

 secondaries plain brown (light olive to light bister, or, more rarel}-, 

 nifescent sepia), the outer secondaries edged wnth the same; sides 

 of head and neck similar m color to pileum and hindneck, the lores 

 paler, the superciliary region usually narrowly streaked with pale 

 olive-yellowish and dusky; throat and chest light yellow (pale canary 

 to sulphur or citron), or at least partly of this color, the throat more 

 narrowly and distinctly streaked with dusky grayish or olive, the 

 chest more broadly and less distinctly streaked with paler grayish 

 or olive ;'^ breast and abdomen white, sometimes faintly tinged with 



o Tip of bill broken off. 



b One specimen (the type). 



c There is much variation (apparently of a purely individual character) in the 

 extent of the yellow on the anterior under parts and the character of the streaking; 

 sometimes the gray or olive streaks on the chest are so broad that the color of the chest 

 may properly be described as gray or light olive (or yellowi-'^h olive) narrowly streaked 

 with pale yellow, the latter being sometimes nearly oksolete and the color of the cliest, 

 therefore, nearly uniform. There is also much variation ii\ the depth of color of the 

 streaks on the throat, which are usually a medium gray or olive with a narrow sliaft- 

 line of black. In one specimen (a male from Sucuyd, Nicaragua) the whole throat 

 and median portion of the chest are dull white (the latter faintly tinged with yellow) 

 and the very narrow streaks brownish gray or grayish l>rown. 



