BIRDS OF NORTH AND MIDDLE AMERICA. 489 
Genus LAMPROLAIMA Reichenbach. 
[Heliodoza] 6. Lamprolaima Reicnenpacn, Aufz. der Colib., 1854, 9. (Type, 
Ornismya rhami Lesson.) 
Lamprolema (emendation) Goutp, Mon. Troch., pt. xi, May, 1856, text to 
pl. 61 (vol. ii, 1861, text to pl. 61). 
Lamprolaema CaBanis and Hzrnz, Mus. Heine, iii, March, 1860, 30. 
Large Trochilide (length about 110-120 mm.) with straight bill 
about as long as head; wing four times as long as exposed culmen; 
tail nearly two-thirds as long as wing, emarginate; remiges extensively 
deep cinnamon-rufous or chestnut, the adult male with chin and 
throat rosy purple between lateral areas of velvety black, chest 
metallic violet-blue, and tail violet-black, the female with under 
parts deep brownish gray, glossed with green laterally. 
Bill about as long as head, straight, slender, terete; culmen 
rounded terminally, narrowly ridged basally; tomia smooth; mandi- 
ble with the usual longitudinal groove, but this narrow and rather 
indistinct. Nasal operculum rather narrow, convex and tumid 
posteriorly, mostly concealed by frontal feathering, which extends 
to or a little beyond anterior end of nostrils, forming a very short 
point or antia on each side of culmen. Tarsus rather stout, densely 
feathered except along posterior side; toes strong, the outer slightly, 
the inner decidedly, shorter than middle toe, the stout hallux about 
as long as inner toe. Wing four times as long as exposed culmen, 
the outermost primary longest. Tail nearly two-thirds as long as 
wing, deeply emarginate, the rectrices broad, with rounded tip. 
Range.—Mountains of southern Mexico and Guatemala. (Mono- 
typic.) 
LAMPROLAIMA RHAMI (Lesson). 
GARNET-THROATED HUMMING BIRD. 
Adult male.—Above bright metallic green or bronze-green, slightly 
duller and more decidedly bronzy posteriorly; tail entirely purplish 
black or very dark violet-purple; remiges and greater wing-coverts 
deep cinnamon-rufous or rufous-chestnut, margined terminally with 
purplish dusky, the longer primaries extensively of the latter color 
terminally, the inner secondaries partly dull bronze-greenish; a small 
white postocular spot; loral, auricular, suborbital, and malar regions 
and sides of lower throat velvety black in position a, glossed with 
purplish bronze in position c; chin and throat bright metallic reddish 
purple or purplish red (varying from solferino to nearly crimson); 
chest and upper breast rich metallic violet or violet-blue in position 
a, more decidedly violet in position 6, much duller and more greenish 
in position c; rest of under parts grayish black or dusky, the breast, 
sides, and flanks strongly glossed with metallic bronze-green, the 
abdomen more slaty; under tail-coverts dull blue-black or purplish 
