YTREO. 353 



Bill large and robust ; .30 or more from uostrils to tip. 

 First quill more than half 2d. 



Superciliarj stripe leachiug only to the eye. Two 

 whitish wing bands. 



Second quill about equal to the secon- 

 daries. 



Above bright olive green ; beneath 

 greenish-yellow, with buify or 

 ochry tinge. Wing bands and 

 margins of secondaries"' broad. 

 Eyelids and region behind eye 

 uniform with the cheeks . ochraceus. 



Above ashy olive. Wing bands and 

 light outer margins of inner 

 secondaries broad. Eyelids 

 and region behind eye yellow- 

 ish, in moderate contrast with 

 the cheeks .... crassirostris. 

 Second quill decidedly shorter than the 

 secondaries. 

 Above plumbeous olive. Wing 

 bands very narrow ; light 

 edgings of inner secondaries 

 almost inappreciable. Eyelids 

 and region behind the eye yel- 

 lowish, in strong contrast with 

 the cheeks .... gundlachi. 

 Superciliary stripe reaching to the nape. No 

 bands on the wing. 

 Second quill about equal to secondaries. 

 Above bright olive green ; beneath, 

 with superciliary stripe, deep 

 olivaceous-yellow. Tail length- 

 ened. (Largest and most deep- 

 ly colored of all the species.) . hypochryseus. 



YiREO, Yieill. 



Tireo atricapillus. 



Vireo atricapillus, WoonnotiSE, Pr. A. N. Sc. 1852, 60 (San Pedro, Tex.). 

 — Ib. Sitgreave's Rep. 1853, 75, pi. i, Birds. — Cassin, lUust. 1854, 

 153, pi. xxiv.— Baird, Birds N. Am. 1858, 337. 



Hah. Southern border of Western Texas. 



(No. 6,818, % .) Top and sides of head and neck black ; rest of upper parts 

 olive green. Wing- and tail-feathers almost black on their upper surface, 

 the quills and rectrices edged with olive (paler on the exterior primaries), 

 23 May. 1866. 



