432 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



AGYRTRIA CANDIDA (Bourcier and Mulsant). 



WHITE-BELLIED EMERALD. 



Adult male. — Above metallic bronze or bronze-green, the back 

 usually more decidedl}^ green or greenish; tail metallic bronze crossed 

 (except on middle rectrices) by a broad subterminal band of dark 

 purplish bronze or blackish glossed with purplish bronze, the terminal 

 portion of two outer pairs of rectrices dull brownish gray; remiges 

 dark brownish slate or dusky, faintly glossed with violaceous; under 

 parts white, overlaid or spotted with metallic bronze-green, from 

 malar region to flanks, inclusive, the under tail-coverts usually 

 faintly tinged with pale brownish gray; maxilla dull black; mandible 

 pale brownish (carmine or pink in life), with dusky tip; feet dusky; 

 length (skins), 81-92 (86); wing, 49-52.5 (51.1); tail, 27.5-31 (28.9); 

 culmen, 15-17.5 (16.1).« 



Adult female. — Very similar to the adult male and probably not 

 always distingiushable, but usually ( ? ) with terminal portion of outer 

 rectrices paler grayish;^ length (sldns), 80-91 (86); wing, 48.5-52 

 (49.9); tail, 27-30.5 (28.3); culmen, 16-19 (17.3). '^ 



7; Troch. Enum., 1855, 4, 702, figs. 4573, 4574. — Thaunmtias linnxi (not of Bona- 

 parte, 1854) Gould, Mon. Troch., v, 1856, pi. 302; Introd. Troch., oct. ed., 1861, 

 153.— Leucochloris Z^nric-ei Mulsant and Verreaux, Classif. Troch., 1866, 32.—[Pohjtmiis] 

 linnxi Gray, Hand-list, i, 1869, 128, no. WIZ .—[Agyrtria\ linnxi Coues, Key N. Am. 

 Birds, 1872, lS6.— Thauma(ias tobaci (not Twchilus tobaci Gmelin) Elliot, Ibis, 1878, 

 4Q.—Agyrtria tobaci Elliot, Classif. and Synop. Troch., 1879, 206; Ridgway, Rep. 

 U. S. Nat. Mus. for 1890 (1891), 382. 



This species has been recorded as a North American bird on account of its alleged 

 accidental occurrence at Cambridge, Massachusetts; but the circumstances, as related, 

 strongly indicate substitution (perhaps accidental), by the taxidermist, of a trade 

 skin of this species for a specimen of the common Archilochus colubris. 



« Twenty-three specimens. 



b According to the material examined, the majority of adult females are absolutely 

 eimilar in coloration to adult males. 



c Twelve specimens. 



Locality. 



MALES. 



Four adult males from Vera Cruz (3) and Puebla (1).. . 



Four adult males from Yucatan 



One adult male from British Honduras 



Four adult males fi-om Honduras 



Nine adult males from Guatemala 



One adult male from Costa Rica 



FEMALES. 



Five adult females from Vera Cruz (3) and Oaxaca (2). 



One adult female from Yucatan 



One adult female from British Honduras 



Three adult females from Honduras 



One adult female from Guatemala 



One adult female from Costa Rica 



Wing. 



51.5 

 50.4 

 50.5 

 51.2 

 51.3 



50.8 



50 



50.5 



49 



48.5 



49 



Tail. 



Ex- 

 posed 

 culmen. 



29.7 

 27.9 

 28.5 

 28.2 

 29.5 



28.5 



29 



28 



27.8 



29 



27.5 



17 



15.7 



15.5 



16.1 



15.9 



15.5 



18 



17 



17 



17.3 



16 



16 



