508 Annals of the Carnegie Museum. 



Bangs Collection : El General de Terraba, Los Cuadros de Irazu, Juan 



Vinas, Carrillo (Underwood). 

 Carnegie Museum : Cariblanco de Sarapiqui, Carrillo, La Hondura, 



and Los Cuadros de Irazu (Underwood). 



The range of the present species covers practically the whole of 

 Costa Rica, with the possible exception of the very high altitudes, 

 although many specimens have been taken at Los Cuadros de Irazu, 

 which is about 5,000 feet above sea-level. 



It is taken in both the Caribbean and Pacific lowlands and is the 

 commonest species of the genus in Costa Rica. I know nothing of 

 their breeding, although it is a resident there throughout the year. 



221. Chsetura spinicauda fumosa (Salvin). 



Chcetura fumosa Salvin, P. Z. S., 1870, 204 (Bugaba, Panama). — Hartert, 

 Cat. Birds Brit. Mus., XVI, 1892, 483 (Chiriqui). — Salvin and Godman, 

 Biol. Centr.-Am., Aves, II, 1894, 377. — Bangs, Proc. N. E. Zool. Club, 1908, 

 26 (Pozo Azul de Pirris [Underwood]). 



Bangs Collection : El General de Terraba (Underwood). 

 Carnegie Museum : Pozo Azul de Pirris, six specimens (Underwood). 

 Mr. Bangs has thoroughly straightened out the status of the three 

 small species of Chcetura inhabiting Costa Rica, viz., C gaumeri, 

 spinicauda fumosa, and cinereiventris phozopygos (Proc. N. E. Zool. 

 Club, 1908, XVI, 26). The present species is found only in the low- 

 lands of the Pacific, and thus far has been taken only at Pozo Azul de 

 Pirris and in the upper Terraba Valley. The eastern and western birds 

 are very easily distinguished. 



222. Chaetura cinereiventris phaeopygos Hellmayr. 



Chcetura cinereiventris guianensis Richmond, Proc. U. S. Nat. Mus., XVI, 1893, 



516 (Rio Frio). 

 Chcetura cinereiventris phceopygos Hellmayr, Bull. Brit. Orn. Club, XVI, 1906, 



83 (Carrillo, a good series [Underwood]). — Bangs, Proc. N. Eng. Zool. Club 



1908, 26 (Carrillo and Juan Vifias [Underwood]). 



Carnegie Museum : Carrillo, cf, 9 (Underwood). 



This species occupies the same position in the Caribbean lowlands 

 which the preceding holds on the Pacific. Nothing more is known of 

 the habits of either, except that they are occasionally seen flying about 

 in small flocks, nor have they ever been taken in any other locality 

 than Carrillo and Juan Vifias. 



