Genera of Humming Birds. 231 



Male. — Exactly like H . henrici., excepting the tail which is 

 entirely bluish-black. 



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



Female or Young Male. — Head, lower part of back, and 

 uppertail-covets bronzy-green, back shining green. Tail,, 

 bluish-black with a bronzy-tinge at base of medians. Throat, 

 white, spotted, and surrounded with black, under which is a 

 narrow white band. Breast, abdomen, and flanks, dark 

 green, base of feathers grayish-black. Undertail-covets 

 white. Wings purple-brown. Bill black. 



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



My specimens of this species were collected in Ecuador, by 

 Buckley. 



•^328. Heliangelus violicollis, Salv., Ann. and Mag. 



Nat. Hist., 1891, p. 376. 



Blue-throated Sun Angel. 



r Héliangèle a gorge d^un bleu-violet. 



m 



Habitat. — Ecuador. 



Male. — Similar to that of H. strophianus, but the upper 

 surface of a darker more rufescent brown, especially in the 

 middle of the back ; the abdomen too has a more bronzy hue ; 

 the most obvious difference is in the colour of the throat 

 which is glittering violet-blue, without any red or rosy tint. 



Young male. — Has the feathers of throat black, with white 

 edges ; amongst these, the glittering violet feathers of the 

 adult appear. 



Type in British Museum. 



■^329 Heliangelus laticlavius, Salv., Ann. and Mag. Nat. 



Hist., iSgi, p. 376. 



Ecuadorian Sun Angel. 



V Heliangéle de V Equateur. 



Habitat. — Ecuador. 



Male. — Very similar to that of H. clarissae, and with the 

 upper surface and tail coloured in the same manner ; on the 

 undersurface the white pectoral band is much wider, more 

 than double the width of that of the allied form ; there is no- 

 band of glittering green feathers below the white, and the 



