278 Bulletin American Museum of Natural History. [Vol. XXXVI, 



(978) Chsetura cinereiventris occidentalis Berl. & Tacz. 



Choetura sclateri occidentalis Beel. & Tacz., P. Z. S., 1883, p. 569 (Chimbo, 

 Ecuador). 



A female from Juntas de Tamana, and two from an altitude of about 

 6000 feet in the Central Andes between Cartago and Salento, are apparently 

 to be referred to this form of which, however, I have seen no authentic 

 specimens. They measure, wing, 114-117; tail, 40-42 mm. 



Juntas de Tamana, 1 ; Central Andes, 2. 



(983) Cypseloides brunneitorques brunneitorques (Lafr.). 



ChcBtura brunneitorques Lafk., Rev. Zool., 1844, p. 81 (Colombia). 



A specimen taken by Fuertes at San Antonio, is our only representative 

 of this species from the Western Andes. It was not met with in the Central 

 Andes but was exceedingly abundant in the Eastern Andes at, and near, 

 Buena Vista. It appears to be mountain-inhabiting and was not secured 

 below 4000 feet. 



The sexing of our nine specimens indicates that the rufous collar is worn 

 by adults of both sexes, and that immature birds of both sexes are without 

 it. Thus it is present in three females, one of which had the ovaries slightly 

 enlarged, and in one male; is almost or entirely absent in three females, 

 and indicated by only a slight rufous tint on the nape in one male. 



San Antonio, 1; Aguadita, 1; Quetame, 4; Buena Vista, 3. 



Family TROCHILIDiE. Hummingbirds. 



(993) Doryfera ludovicise ludovicise (Bourc. & Muls.). 



TrocMlus ludovidcB Botjrc. & Muls., Ann. Soc. Agrio. Lyon, X, 1847, p. 136 

 ("Nouvelle-Grenade"; I suggest Buena Vista, alt.- 4500 ft., Eastern Andes, above 

 Villavicenoio). 

 , Hemistephania ludomcioi Sol. & Salv., P. Z. S., 1879, p. 528 (Sta. Elena). 



Found in the Subtropical Zone of the Central and Eastern Andes. Our 

 specimens apparently represent but one form. 

 Miraflores, 1; Salento, 2; Buena Vista, 1. 



