42 Genera of Humming Birds. 



Tricolopha popelairei, Heine. Journ. fur Ornith., 1863, 

 p. 209. 



Popelairês Thorn-tail, Grould. Mon. Troch., vol. iii., p. 127. 



Le Tricolophe de Popelaire, Muls. Hist. Nat. Ois. Mou., 1876, 

 t. iii., p. 236. 



Habitat. — Columbia, Ecuador, Peru. 



Male. — Head and throat metallic grass-green. Several long 

 black hair-like feathers extending beyond the crest, the two 

 middle ones reaching the tail. Back and uppertail-coverts 

 bronzy-green. Rump greenish-black, crossed by a white band, 

 bluish-black underneath the band. Breast and abdomen black 

 with bluish reflections. Flanks bronzy-green passing to 

 brownish gray. Tail, si eel-blue, with conspicuous white shafts, 

 especially on the underside. Undertail-coverts whitish. Thighs 

 rufous. Bill black. 



Total length, 4f in. Wing, 1J. Tail, 2£. Culmen, J. 



Female. — Upperside, sides of breast, flanks and uppertail- 

 coverts golden-green. White band across the rump, underneath 

 bluish-black. Chin, breast, and centre of abdomen dark brown, 

 nearly black. Line on each side of neck white. Tail short, 

 gray at base, then steel-blue with tips white. Wings purple- 

 brown. Thighs rufous. Bill black. 



This very peculiar species was discovered in Pérou by Baron 

 Popelaire de Terloo, and was dedicated to him by Du-Bus. The 

 type is in the Museum of Bruxelles. 



All my specimens are from Columbia and Ecuador. 



60. GrOULDiA CONVERSi, Bourc and Muls. Ann. Soc. Agr. 



Lyon, 1846, p. 313. 



Mellisuga conversi, Gray, Gren. Birds, vol. i., p. 113. 

 Prymnaccmtha conversi, Cab. and Hein. Mus. Hein., 1860, 

 t. iii., p. 65. 



Converts Thorntail, Grould. Mon. Troch., vol. iii., p. 129. 



Le Prymnacanthe de Convers, Muls. Hist. Nat. Ois. Mou., 

 1876, vol. iii., p. 243. 



Oouldia aequatorialis, Berlepsch and Tacz, P.Z.S., 1883, 

 p. 567. 



Habitat. — Veragua, Columbia, Ecuador. 



Male.— Head and throat shining dark green, elongated 

 feathers beneath the throat, centre of breast bright green 

 with bluish reflections, sometimes metallic blue. Upperside 



