BIBDS OF NORTH AND MIDDLE AMERICA. 449 



SAUCEROTTIA BERYLLINA BERYLLINA (Lichtenstein). 



BERYLLINE HUMMING BIRD. 



Adult male. — Above bright metallic green or bronze-green, passing 

 into duller purplish bronzy on rump, the upper tail-coverts rather 

 dull bronzy purple or violet-purple ; middle rectrices metallic purplish 

 or coppery bronze or bronzy purple, the remaining rectrices chestnut, 

 tipped, or broadly margined at tip, with purpUsh bronze (this some- 

 times wanting or obsolete on outermost rectrix) ; secondaries chest- 

 nut, or dull rufous-chestnut, broadly tipped with dusky, the inner- 

 most ones (tertials) mostly of the latter color; primaries chestnut or 

 dull rufous-chestnut, with terminal portion (extensively) dusky, 

 faintly glossed with purplish; malar region, chin, throat, sides of 

 neck, chest, breast, sides, flanks, and upper abdomen bright metallic 

 green (brighter and more yellowish than grass green), the feathers 

 of chin and throat abruptly grayish white, those of under parts of 

 body dusky brownish gray, beneatli surface; lower abdomen pale 

 buffy gray, grayish cinnamon, or Isabella color; femoral and lumbar 

 tufts white; under tail-coverts pale chestnut broadly edged basally 

 and (usually) narrowly margined terminally with white; maxilla 

 dull black; mandible pale brownish or dull brownish white (reddish 

 in life), dusky at tip; iris dark brown; feet grayish brown or dusky; 

 length (sldns), 90-103 (97); wing, 52-56.5 (54.7); tail, 30-32 (31.3); 

 culmen, 18-20 (18.7).« 



Adult female. — Similar to the adult male, but slightly duller in 

 color, especially the under parts, nearly the whole abdomen being 

 dull cinnamon-buff y, the feathers of chin and throat showing more 

 or less of the basal or subterminal white; length (skms), 88-98 (92); 

 wing, 52-55 (53.6); tail, 29.5-32 (30.2); culmen, 18-20 (19).'' 



Eastern and east-central Mexico, in States of Vera Cruz (Jalapa; 

 Cordova; Orizaba; Jico; Playa Vicente; Cofre de Perote; Coatepec; 

 Omealca; Tospan), Mexico (Valley of Mexico), Morelos (Cuernavaca), 

 Oaxaca (Pluma; Oaxaca; Villa Alta; Totontepec; Chimalapa), and 

 Guanajuato (Moro Leon).*^ 



Trochilus beryllinus Lichtenstein, Preis-Verz. Mex. Vog., 1830, 1 (Mexico); 



Journ. fiir Orn., 1863, 55. 

 P[yrrhophaena] bcryllina Cabanis and Heine, Mus. Hein., iii, 1860, 36. 

 Pyrrhophxna heryllina Mulsant and Verreaux, Hist. Nat. Ois.-Mouch., i, livr. 



4, 1874, 303; iv, livi*. 3, 1878, 182 (Cordova, Tospdn, and Orizaba, Vera 



Cruz). — Gould, Introd. Troch., oct. ed., 1861, 158. — Boucard, Notes quel- 



ques Troch., 1873, 12 (Cordova; Orizaba; Oaxaca). 



o Ten specimens. 

 & Four specimens. 



c Specimens from Guanajuato are intermediate between the typical form and 

 S.h. viola. 



81255°— Bull. 50—11 29 



