Genera of Humming Birds. 123 



171. Chlorostilbon angustipennis, Fraz., P.Z.S., 1840, 



p. 18. 

 Hylocharis angustipennis, Gray, Gen. Birds, vol. i., p. 114. 



P- 75- 



Chrysuronia phseopyga, Bon. Consp. Gen. Av., 1850, vol. i., 



Prasites phdeopyga, Cab. and Hein., Mus. Hein., i860, t. 

 iii., p. 47. 



Chrysomirus angustipennis, Muls., Hist. Nat. Ois. Mou., 

 1875, t. ii., p. 102. 



Columbian Emerald, Gould, Mon. Troch., vol. v., p. 353. 



Le Chrysomire angustipenne, Muls., Hist. Nat. Ois. Mou., 

 1875, t. II, p. 103. 



Habitat. — Columbia. 



Male. — Upperside golden-green. Throat metallic emerald 

 green, sometimes golden. Undertail-coverts shining grass- 

 green. Wings purplish-blue. Tail blue-black, deeply 

 forked. Maxilla black. Mandible flesh colour, with black tip. 



Total length, 3|in. Wing, 2. Tail, i^. Culmen, ■^. 



Female. — Upperside bronzy-green, greener on upper tail- 

 coverts. Underside gray washed, with green on flanks. 

 Median rectrices green at base, rest blue-black, lateral green 

 at base, then blue-black tipped gray, external one gray at 

 base, then crossed by a broad steel-blue band, and tipped 

 gray. Maxilla black. Mandible flesh colour at base, the rest 

 black. 



Common in Columbia. 



172. Chlorostilbon melanorhynchus, Gould, P. Z.S., i860, 



p. 308. 



Chlorostilbon comptus, Berlepsch, Ibis, 1887, p. 296. 



Golden Green Emerald. 



Emeraude vert-dore. 



Habitat. — Ecuador and Columbia. 



Male. — Crown metallic-golden. Upperside shining bronze- 

 green. Throat and upper part of breast metallic emerald- 

 green. Rest of underside golden-green. A tuft of white 

 feathers on each side of lower part of vent. Tail steel-blue, 

 deeply forked. Rectrices narrow. Wings purplish-brown. 

 Bill black. 

 O 



