ORDER PASSERES. 187 



462 a. Contopus richardsonii peninsulas BREWST. 



Large-billed Wood Pewee. 



Contopus richardsonii peninsula BREWST. Auk, VIII. April, 1891, 

 144. 



[B , C , R , C .] 

 GEOG. DIST. Sierra de la Laguna, Lower California. 



GENUS EMPIDONAX CABANIS. 



Empidonax CAB. J. f. O. 1855, 480. Type, Tyrannula pusilla 

 SWAINS. 



463. Empidonax flaviventris BAIRD. 



Yellow-bellied Flycatcher. 



Tyrannula flaviventris BAIRD (W. M. & S. R), Pr. Ac. Nat. Sci. 



Phila. July, 1843, 283. 

 Empidonax flaviventris BAIRD, B. N. Am. 1858, 198. 



[B 144, C 259, R 3 22, C 3 88.] 



GEOG. DIST. Eastern North America west to the Plains, and from 

 southern Labrador south through eastern Mexico to Panama, breed- 

 ing from the Northern States northward. Casual in Greenland. 



464. Empidonax difficilis BAIRD. 



Western Flycatcher. 



Empidonax difficilis BAIRD, B. N. Am. 1858, 198 (in text). 

 [B 144*, C 2sg,Jart, R 323, C 389.] 



GEOG. DIST. Western United States, from the Plains to the 

 Pacific ; south to Cape St. Lucas and through western Mexico to 

 Costa Rica ; north to southern Alaska. 



464.1. Empidonax cineritius BREWST. 



St. Lucas Flycatcher. 



Empidonax cineritius BREWST. Auk, V. Jan. 1888, 90. 



[B , C > R- C-.] 

 GEOG. DIST. Lower California. 



