CERTHIOLA. 479 



Toj) of head and hind-neck ash-gi'ay ; 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. Hab. Eastern Mexico and Guatemala, north to southern Texas (?). 



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



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. Hab. Southern Mexico (Oaxaca, etc.) and south to 



Costa Eica. 



H. ochraceiceps Scl. Ochraceous-fronted Hylophilus.' 



Family CCEREBIDiE.— 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 duskj^, 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 pai'ts 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 buify 

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

 brown. 



a^. 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 Bonap., P. Z. S. 1837, 118. Hylopht'lus decurtatus Baiiid, Review, i. 1866. 380. {He- 

 linai hrevipennis GiRAun, Ann. Lye. N. Y. 1850, 40. " Mexico and Texas.") 

 « Hylophilus ochraceiceps ScL., P. Z. S. 1859, 375. 



