282 Genera of Humming Birds. 



feathers. Breast grayish-brown. Abdomen and flanks rufous- 

 gray washed with pale bronze-green on flanks. Undertail- 

 coverts olive-brown margined with rufous. Wings purple. 

 Bill black. 



Total length, 4|in. Wing, 2^. Tail, i|. Culmen, i. 



Type of female in my collection. 



It was collected in Bolivia, by Buckley. 



I have given the descriptions of the three species known of 

 Lampropygia, as former authors have done ; but I should not 

 be surprised, when more specimens of these birds are 

 collected by true Ornithologists, that it will be found that 

 they are all females, or young males, of Boiircieria ivilsoni, 

 and probably of another or several allied species. 



FAMILY XI. HELIODOXIDAE. 



OR Family of Brilliant Humming Birds. 



Size moderately large. Bill of moderate length, or long 

 and straight. Sheath of box maxilla and mandible smooth. 

 Nasal covers completely concealed. Wings narrow and long. 

 Tail more or less forked. Males usually very brilliant. 

 Brilliant gular spot, or throat brilliant, as in the genera 

 Eugenes and Sternoclyta. Sexes unlike. 



Type: Heliodoxa, Gould, P.Z.S., 1849, p. 95. 



Range. — United States, Mexico, Guatemala, Costa Rica, 

 ColomlDia, Venezuela, Ecuador, Peru, Guiana and Brasilia. 



Genus CXII. Leadbeatera, Bon., Consp., Gen. Av., 

 1850, p. 70. 



TrocHILUS, Tsch. Faun., Per., 1845-46, t. 23, p. 249. 



ASPATA, Hein., Journ. fur Ornith., 1863, p. 179. 



Hypolia, Muls., Cat. Ois., Mou., 1875, p. 17. 



Bill short, stout, and straight. Feathers of the forehead 

 projecting on the maxilla, and covering the nostrils. Crown 

 metallic. Wings, long, narrow and pointed, reaching the end 

 of tail. Tail forked. No gular spot. Tarsi clothed. Sexes 

 unlike. 



