Genera of Humming Birds. 171 



from Veragua, is that the two outermost rectrices on each side 

 of tail are white, to a longer extent than in E. eximia, margined 

 and tipped with bluish-black. 



Genus LXXII. Callipharus, Elliot, Syn. H. Birds, 



1879, p. 211. 



CLOTHO, Muls., Cat. Ois. Mou., 1875, p. 9, (name already 



employed). 



Type : — E. nigriventris, Lawrence. 



Bill about as long as the head, straight, wide at base, gradu- 

 ating to a point at the tip. Frontal leathers not projecting 

 on the culmen. Wings long and broad for their length. Tail 

 moderate, slightly rounded. Undertail-coverts reaching half 

 the length of the rectrices. Feet small. Tarsi partly clothed. 

 Sexes entirely unlike. " Elliot, loc. cit." 



Habitat. — Costa Rica and Veragua. 



247 Callipharus nigriventris, Lawr., Proceed. Acad. Nat. 

 Scien., Phil., 1867, p. 232. 



Eupherusa (Clotho) nigriventris, Muls., Cat. Ois. Mou. r 

 1875, p. 9. 



Thaumatias nigriventris, Sclat and Salv., Nomencl., 1873, 

 p. 92. 



Black-bellied Humming-bird , Gould, Mon. Troch., Supply 

 1886, p. 83. 



V Euphéruse à ventre noir, Muls., Hist. Nat. Ois. Mou., 

 1874, t. i., p. 270. 



Habitat. — Costa Rica and Veraorua. 



Male. — Forehead jet-black. Upperside golden-green Four 

 central rectrices dark greenish-bronze, the rest pure white 

 tipped with brownish-black. Wing-coverts golden-green. 

 Secondaries chestnut with purple tips, rest purplish. Under- 

 side jet-black. Flanks washed with bronze feathers. Vent 

 and undertail coverts white. Bill and feet black. 



Total length, 31'n. Wing, 2. Tail, i|. Culmen, \. 



Female. — Upperside bronzy-green. Median rectrices dark 

 greenish-bronze, tipped black, remainder white. Underside 

 ashy-gray. Wing like that of male. Bill black. Same size 

 as male. 



