Genera of Humming Birds. 157 



Male. — Head metallic blue. Neck brilliant green. Rest 

 of upper parts bronzy-green, changing to coppery-red on 

 rump and upper-tail coverts. Median rectrices bronze, lateral 

 of same colour, with a blackish spot appearing as a sub- 

 terminal bar near the tips. These spots on the lateral 

 feathers, and the length of rectrices, are the principal differ- 

 ences which distinguish this genus from Cyanomyia. Under- 

 side pure white, excepting sides of neck and breast, which 

 are metallic green. Sides of flanks washed with green. 

 Wings purple-brown. Maxilla black. Mandible flesh colour, 

 with black tip. 



Total length, 4111. Wing, 2-|. Tail, if. Culmen, \. 



Female. — Head bluish. Upperside bronze-green, golden 

 on lower part of back, and coppery-red on uppertail-coverts. 

 Tail bronze, with the subterminal blackish bar more apparent 

 than in the male, and the tips of lateral rectrices slightly 

 margined with gray. Underside pure white, sides of neck 

 metallic-green, flanks golden. Wings purple-brown. Bill 

 black except base of mandible which is flesh colour. Same 

 size as male. 



It is a common species. 



225. Uranomitra cyanicollis, Gould, P.Z.S., 1853, p. 61. 



Cyanomyia cyanicollis Bon., Rev. and Mag. Z00L, 1854, 

 P- 254- 



Leucolia cyanicollis, Muls., Hist. Nat. Ois. Mou., 1874, 

 t. i., p. 212. 



Blue Necked Azure Crown, Gould, Mon. Troch., vol., v, 

 p. 288. 



La Leucolie à cou bleu, Muls., Hist. Nat. Ois. Mou., 1874, 

 t. i., p. 212. 



Habitat. — Peru. 



Male. — Crown of the head, nape, and sides of neck metallic 

 blue with greenish reflections. Upperside bronzy-green pass- 

 ing to golden on rump, and uppertail-coverts. Tail bronzy- 

 green, all the laterals crossed near the tip with an obscure 

 brown band. Underside pure white, flanks white washed 

 sparingly with pale golden feathers. Wings purple-brown. 

 Maxilla black. Mandible flesh colour, with black tip. 



Total length, 3^in. Wing, 2-|, Tail, if. Culmen, \. 



