69. EMPIDONAX. 



229 



lower parts white, more or less tinged with sulphur-yellow pos- 

 teriorly, and (usually very faintly) shaded across the. breast with 

 olive or greyish : whole length 5 inches, wing 2-8, tail 2-3. Female 

 similar, but smaller. 



Hah. Eastern North America and South through Mexico and 

 Central America to Western Ecuador. 



a. Ad. sk. 



b, c. 2 ad- sk. 



d. Ad. sk. 



e. 5 a d- sk. 

 /. Ad. sk. 

 g. Ad. sk. 

 h-l. Ad. sk. 



m. Ad. sk. 

 n, o. 3 ad. sk. 



North America. 



Illinois, U. S. A. (Coale). 

 New York, U. 8. A. (Lawrence). 

 Washington, D.C. (Ridgivag). 

 Washington, D.C. (Drexler). 

 U. S. A. (Baird). 

 Ruatan I., Bay of Honduras 



(Gaumer). 

 Costa Rica (Endres). 

 Esineraldas, Ecuador (Fraser). 



Sir J. Richardson 



[P.]. 

 Sclater Coll. 

 Sclater Coll. 

 Salvin-Godman Coll. 

 Salvin-Godnian Coll. 

 Sclater Coll. 

 Salvin-Godman Coll. 



Salvin-Godman Coll. 

 Sclater Coll. 



11. Empidonax difficilis. 



Empidonax difficilis, Baird, B. N. Am. p. 198; Scl. Cat. A. B. 



p. 230 ; Eidffw. P. U.S. N. M. i. p. 425 (C. California), v. p. 531, 



et vi. p. 3-48 (Lower California) ; id. Ibis, 1880, p. 406 ; id. Man. 



N. A. B. p. 340; Brewer, P. U.S. N. M. ii. p. 2; Bean, P. U.S. 



N.M. v. p. 161 (Alaska). 

 Empidonax flaviventris, var. difficilis, Baird, Brew, et Ridgw. N. A. B. 



ii. p. 380; Henshaw, Ann. Lye. N. Y. xi. p. 8 (Utah): Cones, Ken 



N. A. B. 1884, p. 442. 



Under wing-coverts pale buff, deepening into dull ochraceous on 

 edge of wing ; above dull greyish olive (more brownish in winter), 

 the wing-bands dull light buffy greyish (more buffy in winter) ; 

 lower parts dull pale yellowish, inclining to pale sulphur-yellow on 

 belly and lower tail-coverts, and shaded with dull greyish brown 

 across breast : whole length 4-8 inches, wing 2-6, tail 2-3. Female 

 similar. 



Hah. Western North America and Western Ecuador. 



This seems to be the Western form of E. flaviventris, and to be 

 very closely allied to that species. 



a. 3 ad. sk. 



b. 2 ad. sk. 



c. Ad. sk. 



d. Ad.sk. 



e. ^ jr. sk. 

 /. Ad. sk. 

 g. 3 ad. ; 



h. Ad. sk. 

 i. $ ad. sk. 



./. 3 ad. sk. 

 h. Ad. sk. 



Orcas Island, N.W. America. 

 Saturn Island, N.W. America. 

 Vancouver Island. 

 California (Bridges). 

 Kernville, California (Henshaiv) 

 Mazatlan, W. Mexico. 

 Mazatlan (Forrer). 



Dr. Lyall [C.l 

 Dr. Lyall [O.]. 

 Salvin-Godman Coll. 

 Sclater Coll. 

 R. B. Sharpe [P.]. 

 Sclater Coll. 

 Salvin-Godman Coll. 



Plains of Colima, W. Mexico Salvin-Godman Coll. 



(Xantus). 



Presid ; o, Mexico (Forrer). Salvin-Godman Coll. 



Tres Marias Is., W. Mexico (Forrer). Salvin-Godman ColL 



