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THE EVENING HUMMING-BIRD. 
Trochilus vesper. — Lesson. 
Plate XXIV. Male. 
L'Oiscau-mouche vesper, Omismya vesper. Lesson Hislotrt 
Nalurelle des Oiseaux-mouches , pi. xix. p. 85 ; female, Les- 
son's Continuation , pi. vi. 
The present species has been figured by M. Lesson, 
from specimens in the collection of the Jardin du Roi, 
as different from the T. cyanopogon, to which it is 
nearly allied, but differs much in size. The upper 
parts are of a grayish green, of a more golden tinge on 
the back and rump, but generally wanting the lustre 
so prevalent in this race. The gorget is reddish violet, 
with all its changes, and is surrounded on its lower 
edge with a collar of grayish white. The breast and 
belly are white, changing into gray on the flanks and 
vent. The under tail-covertB are pure white. 
The female has been also figured and described for 
the first time in the continuation of M. Lesson’s Mono- 
graph, which that ornithologist has again resumed ; 
the under parts are entirely white, and there is no 
trace of the brilliant gorget belonging to the male. 
