350 Annals of the Carnegie Museum. 



302. Empidonax traillii brewsteri Oberholser. 



Empidonax ridgwayi (not of Sclater) Allen, Bull. Am. Mus. Nat. Hist., XIII, 



1900, 144 (Bonda). 

 Empidonax traillii (not Muscicapa traillii Audubon) Allen, Bull. Am. Mus. 



Nat. Hist., XXI, 1905, 276 (Buritaca, Bonda, and Cautilito ; crit.). 

 Empidonax traillii traillii Ridgway, Bull. U. S. Nat. Mus., No. 50, IV, 1907, 



555 (Santa Marta localities and references). 



Seven specimens : Bonda, Buritaca, Mamatoco, Tucurinca, and Fun- 

 dacion. 



A winter visitor from the north, confined to the lowlands during 

 its stay, and rare in most localities. Six specimens received from Mr. 

 Smith, including one taken as early in the season as August 27, were 

 inadvertently referred to E. ridgwayi by Dr. Allen, the mistake being 

 corrected later, upon the receipt of additional specimens, all being 

 identified as E. traillii " traillii." Nearly all of these are in worn 

 breeding dress, some beginning to moult already, as are also the three 

 examples sent in by the junior author. There appears to be no regu- 

 larity in the time of moulting, but this may of course depend upon the 

 age of the bird. Thus, No. 49,506, Tucurinca, September 23, is badly 

 worn and faded, but shows no sign of moult; No. 49,576, Fundacion, 

 October 11, is undergoing moult of the remiges, wing-coverts, and 

 body-plumage; and No. 9,018, Bonda, October 1, has apparently en- 

 tirely completed the moult. The difficulty, if not impossibility, of posi- 

 tively determining the subspecies from winter specimens is such that 

 the name here used must be accepted only as provisional. It must be 

 admitted that it is unusual to find western forms from the North 

 American continent going farther south in winter than eastern ones. 



For the name here used compare Oberholser, Ohio Journal of Sci- 

 ence, XVIII, 1918, 85-98. 



303. Empidonax virescens (Vieillot). 



Empidonax virescens Bangs, Proc. Biol. Soc. Washington, XII, 1898, 137 

 ("Santa Marta"). — Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 143 

 (Bonda, Onaca, and Valparaiso). — Allen, Auk, XVII, 1900, 365 (Bonda. 

 Onaca, and Valparaiso; Santa Marta, ex Bangs). — Ridgway, Bull. U. S. 

 Nat. Mus., No. 50, IV, 1907, 552 (Santa Marta localities and references). 



One specimen : Onaca. 



Another winter resident species, but apparently rare, since it was 

 not detected at all bv Mr. Carriker. In addition to the four skins re- 



