82 Genera of Humming Birds. 



*\\2. Ukostictf: intermedia, Tacz., P.Z.S., 1882, p. 36. 



Peruvian WJiitc-tipy Gould, Mon. Troch., Suppl., 1886, 

 P- 34- 



L ' Urosticte in fer media ire. 



Habitat. — Peru. 



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 grreen, the central feathers marofined 

 with grayish-white. L^ndertail-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 minute!}- 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. be n /a /n in i Rnd C\ ruficrissa. 



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

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



Red-vented Wliite-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, 2'i. Tail, 2\. Culmen, |. 



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

 larger and with a longer bill. 



This species is one of mv desiderata. 



