Mr. D. G. Elliot on the Troehilidse. 
57 
straight, black. Feet black. Total length 6 inches, wings 
8tail J, bill 1J. 
LAMPROPYGIA COLUMBIANA. 
Hah. Columbia (common in the vicinity of Bogota), Ecuador 
[Gould). 
In the preceding article on L. cceligena, I have given the 
chief characters of the two species, which apparently make it 
requisite that they should be separated; and by conferring 
upon this one a distinctive appellation, both are rescued from 
the great confusion now existing in their synonymy, and 
ornithologists are enabled to distinguish without difficulty 
which form may be before them. The present bird is sent 
to Europe in great numbers from Bogota-—in fact, is one of 
the commonest species of Humming-birds. Lesson's species, 
on the contrary, is by no means so generally met with; and 
as they bear a resemblance to each other,this may be the reason 
that the two have been confounded together under his name, 
especially if the accuracy of his plate has been viewed with dis¬ 
trust. In order to avoid further difficulty in the recognition 
of this species, I append a description of it, which, when 
compared with that given above of L. coeligena , will enable 
any one to ascertain the differences between the two birds. 
Top and sides of head and nape of neck olive-brown, with 
a rufous reflection; back same as head, slightly darker in 
colour; rump (viewed from behind) brilliant metallic green. 
Wings purple; shoulders olive-brown, similar to the back. 
Throat white, centre of feathers blackish brown; upper part 
of breast smoky white, growing dark towards the abdomen, 
which last, together with the flanks, is very dark rufous brown. 
Under tail-coverts reddish brown, central portion of the fea 7 
thers blackish brown. Tail olive-brown, iridescent. Bill 
straight, black. Feet black. Total length 5| inches, wing 
3, tail 2, bill 1^. 
Lampropygia boliviana. 
Lampropygia boliviana, Gould, Intr, Mon. Troch. p. 137, 
sp. 282. 
Hah . Bolivia [Buckley). 
