Genera of Humming Birds. 251 



Habitat. — Bolivia. 



Male. — Head, neck, and uppertail-coverts coppery-bronze.. 

 Back and wing-coverts shining green. Wings purple-brown. 

 Underside shining green with a coppery lustre. Abdomen 

 buff. Undertail-coverts shining green, margined with buff.. 

 Tarsal tufts pale brown. Tail bronze at the base, passing to 

 black at the tips. Bill black. Feet light brovvn. 



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



Female. — Slightly smaller and duller in colouration. Type 

 in Elliot's Museum, now the property of the New York 

 American Museum of Natural History. 



My specimens of this species were collected in Bolivia,, 

 1876, by Buckley; and probably Elliot's type, was also from 

 the same collector. 



355. Threptria LUGENS, Gould, Contr. Ornith., 185 1,. 



p. 140. 



Hoary Puff-legg, Gould, Mon. Troch., vol. iv., p. 282. 



r Eriocnemis demi deuil, Muls., Hist. Nat. Ois. Mou., 1876, 

 t. iii., p. 54. 



Habitat. — Ecuador. 



Male. — Upperside bronzy-green inclining to coppery- 

 bronze on the head and uppertail-coverts. Tail bluish-black. 

 Underside dark laden-gray, washed with dark green on sides 

 of abdomen and flanks, the feathers of the chin and 

 throat are edged with white. Undertail-coverts dark greenish- 

 bronze edged with gray. Tarsal tufts pure white. Wings 

 purplish. Bill black. Feet pale brown, probably flesh-colour 

 in life. 



Total length, 4f. Wing, 2\. Tail, i|. Culmen, |-. 



It is a very rare species in the Collections. 



356. Threptria squamata, Gould, P.Z.S., 1869, p. 311. 



Scaly Puff-leg, Gould, Mon. Troch., vol. iv., p. 281. 



r Eriocnemis a gorge ecailleuse, Muls., His. Nat. Ois. Mou.,. 



1876, t. iii., p. 55. 

 Habitat. — Ecuador. 



Male. — Precisely the same as T. lugens, except the tarsal, 

 tufts, of which the hind portion is buff. I doubt very much, 

 that it is a distinct species. 

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