BIRDS OF NORTH AND MIDDLE AMERICA, 541 
LEPIDOPYGA BOUCARDI (Mulsant). 
BOUCARD’S HUMMING BIRD. 
Adult male-——Above metallic bronze-green, passing into a more 
decided bronze hue on upper tail-coverts and middle rectrices; rec- 
trices (except middle pair) bronze or greenish bronze basally and dull 
blackish or dusky terminally, the dusky decreasing in extent from the 
outermost rectrix, on which it occupies approximately the terminal 
half, to the fourth, on which it is confined to the tip; remiges dusky 
or dull brownish slate, very faintly glossed with bluish, the primary 
coverts similar but slightly darker and sometimes faintly glossed with 
green terminally; chin, throat, and chest brilliant metallic emerald 
green, the feathers pure white beneath surface, this more or less 
exposed, especially on upper throat; sides more bronzy green, the 
feathers grayish white or pale gray basally; rest of under parts 
white, the breast, at least laterally, more or less spotted with metallic 
green; maxilla dull black; mandible pale (flesh colored in life), dusky 
terminally; iris dark brown; legs and feet dusky; length (skins), 
93-99 (95); wing, 52-55 (53.9); tail, 31-35 (32.4); culmen, 19-19.5 
(19.3) .* 
Adult female—Similar to the adult male, but chin, throat, and 
chest white, the throat usually sparsely spotted with dull metallic 
emerald green; under parts of body more extensively white; lateral 
rectrices extensively but indistinctly tipped with pale brownish gray; 
length (skins), 90-96 (94); wing, 50.5-55 (52.8); tail, 30-32.5 (31.6); 
culmen, 19-21.5 (20.1) .¢ 
Pacific coast of Costa Rica (Punta Arenas; Pigres; Coronada de 
Térraba; Palo Verde, Guanacaste). 
Arena boucardt Muusant, Descr. espéce nouv. Troch. [présentée Soc. Linn. Lyon, 
Oct. 12, 1877], 6 (Punta Arenas, Costa Rica; coll. Paris Mus.).—Mutsant and 
VERREAUX, Hist. Nat. Ois.-Mouch., iv, livr. 3, 1878, 194, pl. 121. 
Arinia boucardi MuLsanT and VERREAUX, Hist. Nat. Ois.-Mouch., Suppl. plates, 
pl. 18.—Exuiot, Classif. and Synop. Troch., 1879, 209.—Sazvin, Cat. Birds 
Brit. Mus., xvi, 1892, 193.—Satvin and Gopman, Biol. Centr.-Am., Aves, 
li, 1892, 286.—Bovucarp, Gen. Hum. Birds, 1895, 136.—ZzLep6n, Cat. Aves 
de Costa Rica, 1882, 21; Anal. Mus. Nac. Costa Rica, i, 1887, 122.—Ripeway, 
Condor, vii, 1905, 154, in text (Pigres, Costa Rica). 
Sapphironia boucardi BoucarD, Proc. Zool. Soc. Lond., 1878, 71 (Punta Arenas). 
[Polyerata] boucardi Simon, Cat. Troch., 1897, 12. 
Algyrtria] boucardi Hartert, Das Tierreich, Troch., 1900, 47 (monogr.). 
[Agyrtria] boucardt SHarpr, Hand-list, ii, 1900, 105. 
Agyrtria boucardi CaRRIKER, Ann. Carnegie Mus., vi, 1910, 524 (Palo Verde, 
Guanacaste, and El Corona de Térraba, Costa Rica; habits). 
@ Ten specimens. 
