178 Genera of Humming Birds. 



Sapphironia lucida, Sclat., P.Z.S., 1858, p. 207. 



Coeligena leucotis, Muls., Hist. Nat. Ois. Mou., t. i., p. 187. 



Black-eared Humming-birdj Gould, Mon. Troch., vol. ii., 

 p. 65. 



Le Coeligène à oreilles blanches, Muls., Hist. Nat. Ois. 

 Mou., t. i., p. 188. 



Habitat. — Mexico and Guatemala. 



Male. — Forehead and chin dark metallic sapphire-blue 

 Upperside bronzy-green, reddish and darker on neck. Feathers 

 on rump tinged with rufous. Throat and breast metallic 

 emerald-green. Abdomen and flanks shining-green washed 

 with gray. Undertail-coverts grayish-brown with centre 

 greenish-brown. Wings purple. Median rectrices bronze- 

 green, lateral black with external edges and tips bronze. Bill 

 flesh colour with black tips, more conspicuous on maxilla. A 

 tuft of white feathers on each side of anal region. 



Total length, 3fin. Wing, 2\. Tail, if. Culmen, f. 



Female. — Upperside bronze-green, slightly rufous on fore- 

 head. Underside pale gray, washed with green feathers on 

 throat, sides of breast and flanks. Rectrices like that of 

 male, lateral ones tipped with grayish-white. Maxilla black. 

 Mandible flesh colour with black tip. Ear-coverts black. 

 A white line above and behind the eye. 



This species is rather abundant in Mexico, where I have 

 collected many specimens of both sexes. I have also one 

 specimen from Guatemala, where it is a rare species. 



^255. BASILINNA XANTHUSI, Lawr., Ann. Lye, Nat. Hist. 



N. Y., i860, p. 109. 

 Heliopaedica castaneo-cauda, Lawr., Ann. Lye, Nat. Hist. 

 N. Y., i860, p. 145. 



Heliopoedica xanthusi, Gould, Mon. Troch., vol. ii., p. 64. 

 Coeligena xanthusi, Muls., Hist. Nat. Ois. Mou., t. i., p. 190. 

 Xanthus Huinming-bird , Gould, Mon. Troch., vol. ii., p. 65. 

 Le Coeligène de Xanthus, Muls., Hist. Nat. Ois. Mou., t. i., 

 p. 190. 



Habitat. — Cape St. Lucas (California). 



Male. — Differs from B. leucotis, in having the underside 

 rufous. Throat pale grass-green. Tail dark chestnut, tipped 

 with bronze. Bill flesh colour, with black tips. 



