638 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
wide intervals banded with white; adult female with under parts light 
cinnamon-rufous, the lateral rectrices black tipped with whitish. 
BRange.—Southern Mexico to Guatemala. (Monotypic.) 
TILMATURA DUPONTI (Lesson). 
DUPONT’S HUMMING BIRD. 
Adult male.—Above metallic bronze or bronze-green; remiges dull 
brownish slate or dusky, faintly glossed with purplish; middle pair 
of rectrices metallic bronze-green the next pair with outer web (in 
part at least) bronze-green, the inner web purplish black; remaining 
rectrices mostly purplish black, broadly tipped with white, the two 
outer ones (on each side) crossed, about one-third the distance from 
tip, by a white band, this preceded by a band of chestnut or chestnut- 
rufous, the third (from outside) with a white spot on middle portion 
of inner web; a conspicuous white patch on each side of rump; 
chin and throat black, the feathers tipped or terminally margined 
with metallic violet-blue, their basal portion dusky grayish; chest 
grayish white; rest of under parts dark metallic bronze-green, the 
feathers sometimes margined terminally with pale grayish; femoral 
tufts white; bill dull black; iris dark brown; feet dusky; length 
(skins), 82-101 (90); wing, 33-35 (34); tail, 38-47 (43); middle 
rectrices, 9-12 (10.5); exposed culmen, 12.5-13.5 (12.9).¢ 
Adult female—Above metallic bronze or bronze-green, duller on 
pileum, especially the forehead; middle pair of rectrices metallic 
bronze-green, blackish terminally or subterminally; remaining rec- 
trices metallic bronze-green basally, purplish or bronzy black sub- 
terminally (broadly) and tipped with light cinnamon-rufous (some- 
times passing into white proximately); a conspicuous patch of pale 
cinnamon-buff or buffy white on each side of rump; remiges as in 
adult male; under parts buffy cinnamon or cinnamon-rufous, deepest 
laterally and posteriorly ; bill, etc., as in adult male; length (skins), 
58-67 (63); wing, 33.5-36 (34. 7); tail, 16.5-18, middls rectrices, 
13.5-16 (14.5); exposed culmen, 12-14. 5 (13.6).° 
Southern Mexico, in States of Vera Cruz (Cérdova; Orizaba; 
Jalapa; Los Cerrillos, near Jalapa; Codtepec; Cuesta de Misantla), 
Mexico (Valley of Mexico), Jalisco (Voleén de Colima‘), and Guer- 
rero® (Amula; Chilpancingo), and highlands of Guatemala (Guatemala 
City; Volcan de Santa Maria, Quezaltenango; Cob4n, Vera Paz; San 
Gerénimo); northern Nicaragua ° (Matagalpa). 
Ornismya dupontii Lesson, Hist. Nat. Colibr., Suppl. Ois.-Mouch., 1830-31, 100, 
pl. 1 (Mexico); Index Gen. et Synop. Troch., 1832, p. xxiv.—D’Oca, La 
Naturaleza, iii, 1875, 103 (Jalapa, Vera Cruz; Valley of Mexico). 
@ Ten specimens, 
> Hight specimens. 
¢T have not seen specimens from Jalisco, Guerrero, nor Nicaragua. 
