I 



Genera of Humming Birds. 339 



462. Florisuga mellivora, L. Syst., Nat., 1766, vol. i., 



P- 193- 

 Trochilus fimbriatus, L. Syst., Nat., 1766, vol. i., p. 193. 



Oiseau Mouche dit la Jacobine ou à collier, Vieill., Ois. 

 Dor., p. 55. 



Mellisuga surinamensis, Steph., Gen. Zool.,vol. ix., p. 243. 



Trochilus flabellif era, Gould, P.Z.S., 1846, p. 45. 



Topaza mellivora. Gray, Gen. Birds, vol. i., p. iio. 



Jacobin, Gould, Mon. Troch., vol. ii., p. 113. 



Great Jacobin, Gould, Mon. Troch., vol. ii., p. 114. 



la Florisuge jacobine, Muls., Hist. Nat. Ois. Mou., 1876; 

 t. ii., p. 179. 



Habitat. — Guatemala, Veragua, Panama, Venezuela, Colom- 

 bia, Tobago, Trinidad, Guiana, Brazil, Ecuador, and Peru. 



Male. — Head, throat, and upper part of breast shining 

 cobalt-blue. Across the neck, a broad cuneate-shaped white 

 band ; rest of upperside, including uppertail coverts, shining 

 dark green in some specimens, bright, golden-green in some 

 others. Breast and flanks shining-green or golden-green. 

 Abdomen pure white. Undertail-coverts w^hite. Tail pure 

 white narrowly margined and tipped with purplish-brown. 

 Wings purple-brown. Bill black. 



Total length, 4iin. Wing, 2f. Tail, i-|. Culmen, -|. 



Female. — Upperside golden -green, darker on the crown. 

 Tail bronzy-green, with a sub-terminal bar of deep blue, 

 slightly margined on laterals with gray or white, outermost 

 blackish-blue with base of external web and tip w^hite. 

 Throat and upper part of breast white, spotted with dark 

 brown. Sides of breast, abdomen and flanks golden-green. 

 Centre of abdomen white. Undertail-coverts blackish-brown, 

 tipped with white. Wings purplish-brown. Bill black. 



Total length, 4fin. Wing, 2|-. Tail, if. Culmen, |-. 



Young Male. — Coloured like the male, with a buff band on 

 each side of the blue of the throat. 



This is a very common species. I have large series from 

 Guatemala, Chiriqui, Guiana, Trinidad, Tobago, Brazil, and 

 Colombia, which varies in colouration, but otherwise are quite 

 the same ; but I have some others which varies so much in the 

 colouration of the tail that I think a description is necessary. 



