C H A L Y B U R A . 



45 



to exist ill both sexes, although the color of their pliiniiigc is quite different. The 

 males with one exception are clothed in green, which hue is most luminous on the 

 mider surface. In tlie single species that differs from the rest, the under parts are 

 blue. Although this genus is placed inunediately after Lafkesnaya as beiuf the 

 nearest to it of those known, it yet presents certain characters differing so greatly 

 from any found in that genus, that we may reasonably suppose another form yet 

 remains to be discovered, that will take its place between them, and make the chain 

 more complete. 



Genus XIX.— CHALYBURA. 



Ch ali/bura, Rkicii., Aiifz. tier Colib., p. 10 (1853). 



Cy anochlori s, Reich., Aufz. der Colib., p. 10 (ISSS). 



Hypxiropttla, Gould, Mod. Troch., pt. vii (ISa.")). — Id., Intr. Troch., octavo 



ed., p. 12 (1861). 

 Mcthon, MuLS., Oat. Ois. Mouch. (1875), p. 7. 



TVPE. 



T. htiffoni, Lcs.?. 



T. cwruleivcntris, Gould. 



T. hvffoni. Less. 



T. aeruteiveniris, Gould. 



Fiff. 19. 



Ch. Bill longer than the head, broad at base, slightly 

 curving towards tlie tip. Wings long. Tail slightly 

 forked. Under tail coverts greatly developed, plume- 

 like. Sexes unlike in the color of tlieir plumage. 



Ramje. From Veragua through Central America, 

 Venezuela, Columbia. 

 Five species are known. 



Key to tlie species. 



A. Under parts green. 



a. Under tail coverts white. 



a'. Tail bluisli-black, sometiine.s glos-sed with bronze. 



b'. Tail golden-bronze, 

 e'. Tail bronzy-purple. 

 b. Under tail coverts black. 

 B. Under parts blue. 



CJuilyhuru tiuff'ini. o i"/. 

 Cy«ring. 



1. C. hiiffoni. 



2. C. vrochri/itea. 



3. C. isauras. 



4. C. melanorrhoa. 



5. C. cxrulcivcntris. 



1. Chalybura buffoni. 



Trochihis hiiffoni, Less., Trocliil., p. 34, pi. 15 (IS.'Jl). 



PolytmuH huff'imi. Gray, Gen. Birds, vol. i, p. 108. 



Lampornis buffoni, Bon., Consp. Gen. Av., p. 72. — Td., Rev. and Mug. Zool. (1854). p. 250.— Mri.s., Hist. Nat. 



Ois. Mouch., vol. i, p. 170. 

 Chalybura buffoni, Reich., Aufz. der Colib., p. 10 (1853).— Cab. and IIei.s-., Mhs. Hein. Tli., iii, p. 20 (18G0).— 



Gould, Intr. Troch., octavo ed., p. 72 (1861). 

 Agyrlria hiiffoni. Reich. , Troch. Kniim.. p. 7. t. 766, fi<js. 4773-74 (1855). 

 Hypiiroplila hiiffoni. Goi-i.n. Mon. Troch., vol. ii, i)l. 89. 

 Chalybura aneicauda, Lawr., Proc. Acad. Kat. Sc, Phil. (18C5), p. 38 (c.\ Venezuela). 



