Genera of Humming Birds. 217 



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



Young Male. — Scarcely out of nest, has the colouration of 

 an adult male, the wings longer than the tail and the chin 

 black. 



Total length, 3iin. Wing, 2 J. Tail, i^. Culmen, -^-q. 



This very fine species was discovered by Delattre. 



I have collected fine series of both sexes in the temperate 

 and cold countries of Mexico, where it is abundant. 



Genus LXXXVIII. Coeligena, Less., Ind. and Syn. Ois, 



Gen. Troch, 1832, p. 18. 



Type : — O clemenciae, Lesson. 



Bill straight, longer than the head. Wings long reaching^ 

 the end of tail. Tail ample. Rectrices broad, rounded, and 

 of even size. Laterals in both sexes, broadly tipped with 

 white. Tarsi clothed. Sexes unlike. 



Habitat. — Mexico. 



309. Coeligena clemenciae, Less.. Ois. Mouch., 1829^ 



p. 216. 



Lampornis clemenciae^ Less., Tratié. Ornith., 1831, p. 279 



Mellisuga clemenciae, Gray, Gen. Birds, vol. i., p. 112. 



Delattria clemenciae, Bon. Consp. Gen. Av., 1850, p. 70. 



Blue-throated Cazigue, Gould, Mon. Troch., vol. ii., p. 60. 



le Coeligène de Clémence, Muls., Hist. Nat. Ois. Mou., 1874, 

 t. i., p. 181. 



Habitat. — Mexico. 



Maie. — Upperside bronzy-green, brownish on rump. Upper- 

 tail-coverts greenish-black. Tail purplish-black, the two 

 outermost rectrices broadly tipped with white. Throat 

 metallic azure-blue. Lines from maxilla under the eye, and 

 one behind, white. Ear-coverts brown. Underside dark 

 ashy-gray, washed with green on sides of throat, breast, and 

 flanks. Vent white. Undertal-coverts greenish-gray edged 

 with white. Wings silky-brown. Bill black. 



Total length, 5|in. Wing, 3. Tail, 2|. Culmen, i. 



