no 
SAPPHIRE AND EMERALD HUMMING-BIRD. 
Trochilus bicolor. — Gmelin. 
Trochilus bicolor, Gmelin, edition of Linrucus. — Sapphire 
and Emerald Humming-Bird, Latham, General History, 
iv. p. 329 Le Sapphire emeraude. Lesson, Histoire Na- 
turelle des Oiseaux-mouches, p. 161, Pis. xlix and 1. 
This species is distinguished at once from that 
figured on the last plate, by the rich gi'een of the 
whole body, except the throat, breast and tail. In the 
above mentioned bird these parts are tinged with a 
much greater shade of blue, and seem in some lights 
to be almost of that colour : the crown is of a very 
deep tint, and appears much darker than the rest 
of the body ; the throat and breast gradually shading 
into the belly, are very rich blue, with metallic lustre ; 
the tail is deep steel-blue above and below, and ap- 
pears scarcely so much forked as in the preceding 
bird ; the bill has the upper mandible black, the 
lower yellowish white, except at the tip, which is 
brown. The female resembles the male, except on 
the under parts ; the beautiful blue of the throat 
and breast is nearly pure white, and, as it reaches the 
belly and vent, becomes mixed with green. The 
young birds differ by the blue throat being very dull, 
by the vent and flanks being of a greenish black, and 
by the whole plumage wanting in brilliancy. 
It is a native of French Guiana, and Latham men- 
tions it from the island of Guadaloupe. 
