96 Genera of Humvting Birds. 



at Rio Napo, by Buckley, the differences in colour mentioned 

 above, are constant, and it is impossible to confound the 

 two species. 



Types in Boucard's Museum. 



Genus XLVI. Cyanolesbia, Stej. Auk., 1885, t. ii., 



p. 46. 



Cynanthus, Sw. Class. Birds, 1837, ^^1- "•' P- 33^- 



Lesbia, Cab. and Hein., Mus. Hein, i860, t. iii., p. 71. 



Cyanolesbia, Berlep, Col. Art. Bog. Coll., 1888, p. 14. 



Type : T. forficatus, Edwards. 



Bill shorter than the head, straight, graduating rapidly at 

 tip to a sharp point. Wings long. CroAvn and head covered 

 with metallic feathers forming a crest. Patch of metallic 

 feathers in the centre of throat. Tail long, deeply forked, 

 brilliantly coloured on the upperside. Tarsi bare. Sexes 

 unlike. 



Habitat. — Venezuela, Columbia, Ecuador, Peru and Bolivia. 



132. Cyanolesbia gorgo, Reich., Aufz. der Col., p.p. 8-24. 



Cynantiîus forficatus, Edw. Birds, Tab. 33, pi. 1763. 



Trochilus cyanurus, Steph. Shaw, Gen. Zool., vol. xix.^ 



P- 239- 



Ornismya kin^i, Less. Trochil., 182g, p. 107. 



Mellisuga cyanura, Gray, Gen. Birds, vol. i., p. 113. 



Lesbia forficata, Reich., Aufz. der Col., 1853, p. 8. 



Mellisuga salvadori, Bienvenut, Ann. Zool. Mus. Flor., 

 1865, p. 204. 



Blue-tailed Sylph, Gould, Mon. Troch., vol. iii., p. 172. 



Le Cynanthe cyanure, Muls., His. Nat. Ois. Mou., 1876, 

 t. iii., p. 26g. 



Habitat. — Venezuela, Columbia. 



Male. — Crown metallic grass-green, bordered on the sides 

 with a greenish-black line. Upper and underside bronzy-green, 

 darker on back. Upper and undertail-coverts shining-green. 

 Centre of throat metallic purple. Central rectrices black with 

 the outer webs dark shining blue, and the portions that 

 project beyond the tips of one another, metallic light blue. 



