82 Genera of Humming Birds. 



*ir2. Urosticte intermedia, Tacz., P.Z.S., 1882, p. 36. 



Peruvian WJiite-tip, Gould, Mon. Troch., Suppl., 1S86, 

 P- 34- 



L' Urosticte inter media ire. 



Habitat.^Feru. 



Male. — Upperside shining golden-green. Tail deeply 

 forked. Median rectrices green at base, then dark coppery- 

 red with large white tips, with a small brown spot at the 

 extremity, lateral and outermost green at base, passing to 

 dark coppery-red, with white tips on lateral. Chin and throat 

 brilliant metallic green, followed by a jugular spot dark violet. 

 Breast and abdomen green, the central feathers margined 

 with grayish-white. Undertail-coverts rufous and green. 

 Vent white. Wings purplish-brown. Bill black. 



Total length, 118 mill. Wing, 58. Tail, 80. Culmen, 22. 



Female. — Upperside green, less golden than the male. 

 Underside white spotted with green, more minuteh- on throat 

 and breast, and more brilliantly than on the abdomen. 

 Undertail-coverts rufous-white. Tail less forked than the 

 male, median rectrices green, lateral and outermost ones green, 

 passing to coppery, with large white tips. This rare species 

 .takes its place between U. henjamini 'a.wA U. ruficrissa. 



^113. Urosticte rueicrissa, Lawr, Ann., Lye, Nat. Hist., 

 N.Y., 1864, vol. viii., p. 44. 



Red-vented White-tip, Gould, Mon. Troch., Suppl., 1886^ 

 P- 33- 



L'Urosticte a sous caudales rousses, Muls., Hist. Nat., Ois. 

 Mou., 1876, vol. iii., p. 104. 



Habitat. — Ecuador. 



Male. — General plumage dark shining green. Throat 

 luminous grass-green. Wings purplish-brown. Undertail- 

 coverts rufous. Tail pale bronze-green with the four median 

 feathers tipped white. Bill black. Feet brown. 



Total length, 4iin. Wing, 2J|. Tail, 2|. Culmen, |. 



Female. — Exactly like the female of U. bejamini, but slightly 

 larger and with a longer bill. 



This species is one of my desiderata. 



