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. 

 Range. — Southern Mexico to Guatemala. (Monotypic.) 



TILMATURA DUPONTH (Lesson). 



DTJPONT'S HUMMING BIRD. 



Adult male. — Above metallic bronze or bronze-green; remiges dull 

 brownish slate or dusky, faintly glossed with purplish; middle pair 

 of rectnces metallic bronze-green the next pair with outer web (m 

 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); wmg, 33-35 (34); tail, 38-47 (43); middle 

 rectrices, 9-12 (10.5); exposed culmen, 12.5-13.5 (12.9).« 



Adult female. — Above metalUc bronze or bronze-green, duller on 

 pileum, especially the forehead; middle pair of rectrices metallic 

 bronze-green, blackish terminally or subterminally; remauiing 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, middle rectrices, 

 13.5-16 (14.5); exposed culmen, 12-14.5 (13.6).^ 



Southern Mexico, m States of Vera Cruz (Cordova; Orizaba; 

 Jalapa; Los Cerrillos, near Jalapa; Coatepec; Cuesta de Misantla), 

 Mexico (Valley of Mexico), Jalisco (Volcan de Colima''), and Guer- 

 rero <= (Amula; Chilpancingo), and highlands of Guatemala (Guatemala 

 City; Volcan de Santa Maria, Quezaltenango ; Coban, Vera Paz; San 

 Geronimo); northern Nicaragua <= (Matagalpa). 



Ornismya dupontii Lesson, Hist. Nat. Colibr., Suppl. Ois.-Mouch., 1830-31, 100, 

 pi. 1 (Mexico); Index Gen. et Synop. Troch., 1832, p. xxiv.— D'Oca, La 

 Naturaleza, iii, 1875, 103 (Jalapa, Vera Cruz; Valley of Mexico). 



o Ten specimens. 



b Eight specimens. 



c I have not seen specimens from Jalisco, Guerrero, nor Nicaragua. 



