Genera of Humming Birds. 203 



Hemithylaca niveiventris, Cab. and Hein., Mus. Hein., 

 i860, t. iii., p. 37. 



Erythronota niveiventris, Gould, Mon. Troch., 1861, vol. 

 v., p. 319- 



Leucodora niveiventris, Muls., Hist. Nat. Ois. Mou., 1876, 

 t. i., p. 313- 



White-breasted Erythronote^ Gould, Mon. Troch., vol. v. p. 



319- 



Le Leucodore à ventre d'un blanc de neige, Muls., Hist. 

 Nat, Ois. Mou, 1874, t. i., p. 314. 



Habitat. — Veragua, Panama. 



Maie. — Exactly like the preceding species, from which it 

 •differs by the colour of its tail, w^hich is purplish-black, and 

 the undertail-coverts brownish-bronze, margined with white. 



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



This species was discovered in Panama by M. Seemann. 



292. Amazilia cupreicauda, Salv. and Godm., Ibis., 1884, 



P- 452. 



Copper-tailed Amazili, Gould, Mon. Troch., Suppl. 1886, 

 p. 88. 



I'Amazili à queue bronzée 



Habitat. — Roraima, B. Guiana. 



Male. — Top of head brilliant metallic green. Upperside 

 bronzy-green, passing to coppery-red on rump and uppertail- 

 coverts. Median and lateral rectrices, dark cinnamon ^vith 

 purple tips, outermost one cinnamon with reddish-bronze tip. 

 Underside brilliant metallic green. A patch on flanks and 

 thighs white. Undertail-coverts cinnamon. Wings purplish. 

 Maxilla black. Mandible flesh colour with black tip. 



Total length, 3fin. Wing, 2^. Tail, i|-. Culmen, \^. 



Female. — Similar to the male, but less brilliant and slio-htlv 

 smaller. Centre of abdomen dusky-brown. Median and 

 lateral rectrices tipped with bronze. 



This species was discovered in British Guiana by the well- 

 known collector, Mr. H. W^hitelv. 

 T 



