248 Annals of the Carnegie Museum. 



are inclined to think that the hird is a regular although rather rare 

 resident of the lowlands and lower foothills, ascending into the moun- 

 tains in search of food when not breeding. 



194. Chaetocercus astreans (Bangs). 



Acestrura mulsanti (not Omismya mulsanti Bourcier) Salvin and Godman, Ibis, 



1879.205 (Atanquez). — Salvin, Cat. Birds Brit. Mus., XVI, 1892, 406 (Atan- 



quez). — Simon, Cat. Fam. Trochilidse, 1921, 403. 404, note (crit.). 

 Acestrura astreans Bancs, Proc. New England Zool. Club, I, 1899, 76 (San 



Sebastian [type-locality] and El Mamon ; orig. descr. ; type now in coll. 



Mus. Comp. Zool.; meas. ; crit.). — Allen, Bull. Am. Mus. Nat. Hist., XIII, 



1900, 120, 137 (Valparaiso and Bonda). 

 Chcctocercus astreans Brabourne and Chubb, Birds S. Am.. I. 1912. 145 (ref. 



orig. descr.; range). — Cory, Field Mus. Zool. Series, XIII, 1918, 301 (ref. 



orig. descr.; range). 

 Acestrura astrans Simon, Cat. Fam. Trochilida, 1921, 239 (descr.), 404 (ref. 



orig. descr.; range). 



Twenty-two specimens: Cincinnati and Las Taguas. 



Only one of the females in this series shows any trace of an inter- 

 rupted pectoral band of greenish, as mentioned in the original descrip- 

 tion. 



This diminutive hummingbird is evidently a species belonging to the 

 Subtropical Zone, and is confined to the west and south slopes of the 

 Sierra Nevada and San Lorenzo. Simons secured a female at Atan- 

 quez, as low down as 2,700 feet, however, and Mr. Smith sent in a 

 specimen purporting to come from Bonda, which locality, if not an 

 error, is certainly a most exceptional record. The writer first took a 

 pair in the forest at Las Taguas at 5,000 feet, and saw others, but later 

 found it abundant in the coffee hacienda of Cincinnati in July, the 

 season when the shade trees were in bloom. During flight the wings 

 of this bird make a buzzing sound exactly like that made by a big 

 bumblebee. 



M. Simon says that the female specimen sent in by Simons from 

 Atanquez is referable to C. mulsanti, but we venture to doubt this 

 determination on geographic grounds. 



195. Oxypogon cyanolaemus Salvin and Godman. 



Oxypogon cyanolcrmus Salvin and Godman, Ibis, 1880, 172, pi. 4, fig. 2 

 (Sierra Nevada de Santa Marta ; orig. descr.; type now in coll. Brit. Mus.; 

 crit.). — Reichenow and Schalow, Journ. f. Orn., XXVIII, 1880, 316 (re- 

 print orig. descr.). — Sharpe, in Gould's Mon. Trochilida?, Supplement, 1883. 



