VI TROCHILIDAE ASS 
green above and greyish below, with a blue nape and white 
rump-bar.  Chlorostilbon, ranging from Mexico to Argentina, 
possesses some dozen green 
species with blue or purplish 
tails, which are forked or 
rounded ; Panychlora of 
Colombia and Venezuela is 
similar ; Sporadinus, differ- 
ing in its bronzy-black rec- 
trices, Inhabits Florida, the 
Bahamas, and the greater 
Antilles. In Aithurus polyt- 
mus, pecuhar to Jamaica, 
the two tail-feathers next 
to the outer pair are im- 
mensely elongated, and, after 
crossing one another, bend 
outwards in a curve; the 
lateral rectrices are bluish- 
black, as is the head with 
its divided crest; all the 
other parts being luminous 
green, and the bill red 
with black tip. The female 
is chiefly green above and 
white below, with brownish 
; ' Fria. 90.—Long-tailed Humming-bird. 
crown. The two species of Aithurus polytmus. x. 
Microchera of Panama, Costa 
Rica, and Nicaragua, change with the light from coppery-red to 
black, and have a greenish throat, a white crown, and a partly white 
tail, except the median feathers. The hen is green above and 
white below. Lampornis, with about ten species, ranges from 
South Mexico and the West Indies to Brazil. LZ. violicauda, the 
South American “ Mango,” is green with velvety black abdomen 
and throat, the latter being edged with blue; the lateral rectrices 
are violet. Avocettula recurvirostris of Guiana, with its golden 
green coloration, emerald breast, and tail fiery red beneath in the 
male, has an upturned tip to the bill, recalling that of the 
Avocet. The female is chiefly white below. Hulampis holo- 
sericeus, extending from Barbados to St. Thomas, is golden-green, 
VOL. IX 2F 
