Genera of Humming Birds, 43 



dark bronze-greeu. Rump underneath the white band, some- 

 times dark purple-brown, sometimes coppery. Tail steel blue, 

 with shafts pale brown ujjperside, and showy white underside. 

 Wings purplish-brown. Bill black. 



Total length, 4 in. Wing, 1|-. Tail, 2i. Culmen, \. 



Female. — Upperside golden-green. Eump and white band 

 as in male. Throat and centre of abdomen black. A white 

 hue under the eyes from the bill to the breast. Breast blackish 

 washed with metallic green feathers. Flanks golden-green. 

 Two large white patches between the lower part of abdomen 

 and flanks. Tail short, upperside steel blue with white tips, 

 underside gray at base, then steel blue with white tips. Bill 

 black. 



I have united Gouldia ae(jiiaforlalis, Berlepsch and Tacz, 

 with this species, because the characters given by these authors 

 are not peculiar to the specimens from Ecuador. I have 

 several specimens from Veragua and from Columbia coloured 

 exactly the same as those from Ecuador. 



This species was discovered by Mr. Convers, a French 

 naturalist, established years ago in Bogota. It was dedicated 

 to him by Messrs. Bourcicr and Mulsant. 



61-'\ Gouldia lcetitiae, Bourc. Ann. Soc Lyon, 1852, p. 143. 



Prynmacantha laititiae, Cab. and Hein. Mus Hein., 1$60, 

 t. iii, p. G4. 



Mytliinia lcetitiae, Muls. Hist. Nat. Ois. Mou., 1876, vol. iii., 

 p. 245. 



Letitid's Thorntail, Gould. iNIon. Troch., vol. iii., p. 130. 



La Mythinie de Letitia, Muls. Hist. Nat. Ois. Mou., 187(5, 

 vol. iii., p. 246. 



Habitat. — Bolivia. 



Male. — Head and throat glittering pale grass green. Upper- 

 surface coppery-brown ; band across the rump white. A white 

 patch beneath the green of the throat. Upper parts of 

 abdomen and flanks bronzy-green. Lower portion of belly gray. 

 Upper tail-coverts red changing to golden-green. Tail black, 

 shafts rufous. Undertail-coverts golden-green bordered with 

 black. Bill maxilla black, mandible flesh-color at base, rest 

 black. 



Total length, 3f in. Wing, 11. Tail, li. Culmen, |. 



Female. — Unknown 



