CERTHIOLA. 479 



Top of head and hind-neck ash-gray ; rest of upper parts uniform olive-green ; 

 lower parts dull whitish, the sides and flanks olive-green, and under tail- 

 coverts pale yellow; length (skins) about 3.75-4.00, wing 2.00-2.20, tail 1.55- 

 1.70. Sab. Eastern Mexico and Guatemala, north to southern Texas (?). 



H. decurtatus (Bonap.). Short-winged Hylophilus. 1 



Top of head tawny, brighter or more ochraceous on forehead ; rest of upper 

 parts olive-tawny, mixed with olive on rump, the tail deep tawny brown ; 

 chin and throat light grayish; rest of lower parts pale yellowish olive, 

 sometimes tinged with tawny on breast; length (skins) about 4.00, wing 

 2.15-2.25, tail 1.80-1.90. Sab. Southern Mexico (Oaxaca, etc.) and south to 

 Costa Eica. 



H. ochraceiceps Scl. Ochraceous-fronted Hylophilus.' 



Family CCEREBID^.— The Honey Creepers. (Page 322.) 



Genera. 

 (Characters same as those given for the Family)... Certhiola. (Page 479.) 

 Genus CERTHIOLA Sundevall. (Page 479, pi. CXIV., fig. 7.) 



Species. 



Common Characters. — Adults : Above plain dusky, or brownish slate, with top 

 of head black, the rump always yellow or yellowish olive ; a more or less extensive 

 white spot at base of longer quills ; ear-coverts blackish, like top of head, but sep- 

 arated from the latter by a conspicuous superciliary stripe of white ; chin, throat, 

 and malar region (sometimes chest also) uniform white, grayish white, or gray ; 

 breast (sometimes also belly and sides) bright yellow ; outer tail-feathers more or 

 less broadly tipped with white. Young : Above (including top of head) dull olive- 

 brownish or dull brownish gray, the wings and tail marked with white as in adult; 

 superciliary stripe indistinct (sometimes obsolete) ; lower parts dull whitish, strongly 

 tinged on breast, etc., with pale yellow (sometimes entirely dull yellowish). Nest in 

 bushes or small trees, oven-shaped, with entrance in one side, composed exteriorly 

 of dried grass-stems, etc., lined with softer materials. Eggs 2-4, white or buffy 

 white, finely speckled or sprinkled, chiefly on or round larger end, with umber- 

 brown. 



a 1 . Adults with chin, throat, cheeks, and upper part of chest white, or grayish 

 white ; back, scapulars, etc., very dark sooty slate, or blackish, not distinctly, 

 if at all, different from top of head ; rump yellow. Young with chin and 

 throat dull whitish, and upper parts dull brownish gray. 



1 Sylvia decurtata Bohap., P. Z. S. 183V, 118. Hylophilus decurtatus Baird, Review, i. 1866, 380. (He- 

 linai brevipennis Giraud, Ann. Lyo. N. T. 1850, 40. " Mexico and Texas.") 



2 Hylophilus ochraceiceps Scl., P. Z. S. 1859, 375. 



