CRIMSON-RUMPED HUMMING-BIRD. 115 
CRIMSON-RUMPED HUMJVIING-BIRD. 
Trochilus erythronoius. — Lesson. 
L’Erythronote, Ornismya erytlironotos, Lesson, Histoire 
Naturelle des Oiseaux-mouches, p. 181. pi. Ixi. 
This bird, Lesson observes, may prove to be the 
young of the last. But although the form is very 
similai', the colour seems so distinct, that it is unlike 
what is seen in the others which vary from the young 
to the adult plumage. In length it is little above 
three inches. The head, back of the neck, and en- 
tire under parts, are of an emerald green, which, 
though dull, shews chang(“s of tint with the position. 
On the under side the colour is quite uniform, and 
without any black patch. The lower part of the 
back, rump, and the wing-coverts, are of a rich crim- 
son, with golden reflections. The tail is deeply fork- 
ed, and is of an indigo-blue colour on both surfaces. 
It is a native of Brazil. 
NEUWIED’S HUJIMING-BIRD. 
Trochilus cyanogenys Neuwied. 
L’Oiseau-moache Wied, Trochilus Wiedii, Lesson, 
Supplement, pi. xxvi. 
This is closely allied to the preceding, but is con- 
siderably smaller. The upper plumage is of a bril- 
liant and shining sapphirine-green, with yellowish 
