538 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



longest. Tail nearly to quite two-thirds as long as wing, dis- 

 tinctly forked, the rectrices (except middle pair) rather narrow, with 

 rounded tip. 



Coloration. — Above metallic green, bronze-green, or greenish 

 bronze, the middle rectrices sometimes blackish, the lateral rectrices 

 always black or blackish; beneath metallic green or green with 

 violet-blue throat and chest, the abdomen and under tail-coverts 

 sometimes white. Adult females with under parts white, more or 

 less greenish laterally (the throat sometimes spotted with green), 

 the lateral rectrices tipped with pale grayish. 



Range. — Western Costa Rica to western and central Colombia. 

 (Four species.) 



KEY TO THE SPECIES OP LEPIDOPYGA. 



a. Under parts mostly metallic green or violet-blue. {Adult males.) 



b. Throat and chest violet-blue. (Panama and southwestern Costa Rica.) 



Lepidopyga caeruleogularis, adult male (p. 539). 

 bb. Throat and chest green, 

 c. Abdomen metallic green; under tail-coverts green medially. 

 d. Under tail-coverts metallic green margined with white; feathers of throat 

 and chest with subterminal (concealed) bar gray. (Northeastern Colom- 

 bia.) Lepidopyga coelina, adult male (extralimital).,« 



dd. Under tail-coverts white with a mesial streak of green; feathers of throat 

 and chest with subterminal (concealed) bar white. (Central and north- 

 ern Colombia.) Lepidopyga goudoti, adult male (extralimital) . & 



cc. Abdomen and under tail-coverts immaculate white. (Pacific coast of Costa 



Rica.) Lepidopyga boucardi, adult male (p. 541). 



aa. Under parts mostly white. 



b. Chin, throat, and chest white or mostly white. 



a Thalurania coelina Bourcier, Rev. et Mag. de Zool., 1853, 553 (Santa Marta, 

 Colombia). — Lepidopyga coelina Simon, Rev. Fran?. d'Orn., nos. 5, 6, Sept.-Oct., 

 1909, 66 (crit.). — Sapphironia luminosa Lawrence, Ann. Lye. N. H. N. Y., vii, 1862, 

 458 (Barranquilla, Colombia; coll. G. N. Lawrence?). — L[epidopyga] luminosa Heine, 

 Journ. fur Orn., 1863, 194 (crit.); Hartert, Das Tierreich, Troch., 1900, 50 (monogr.).— 

 Cyanophaia luminosa Elliot, Classif. and Synop. Troch., 1879, 235; Salvin, Cat. 

 Birds Brit. Mus., xvi, 1892, 235. — [Emilia] luminosa Mulsant, Ann. Soc. Linn. Lyon, 

 n. s., xxii, 1876, 208. — L[epidopyga] (Cyanophaia) luminosa Simon, Rev. Frang. 

 d'Orn., nos. 5, 6, Sept., Oct., 1909, 66, in text (crit.). 



b T[rochilus] goudoti Bourcier, Rev. Zool., vi, April, 1843, 100 (Ibague, Colombia); 

 Bourcier and Mulsant, Ann. Sci. Phys. et Nat., etc., Lyon, vi, 1843, 47. — [Sau- 

 cerottia] goudoti Bonaparte, Consp. Av., i, 1850, 77. — [Agyrtria. 3. Chalybura] goudoti 

 Reichenbach, Aufz. der Colibr., 1854, 10. — Hylocharis goudoti Bonaparte, Rev. Zool., 

 1854, 255. — [Agyrtria] goudotii Reichenbach, Troch. Enum., 1855, 7, pi. 763, figs. 

 4765, 4766.— Sapphironia goudoti Gould, Mon. Troch., pt. v, 1860, pi. 345; Introd. 

 Troch., oct. ed., 1861, 172. — L[epidopyga] goudoti Cabanis and Heine, Mus. Hein., 

 iii, 1860, 40, footnote. — Chrysolampis (Emilia) goudoti Mulsant and Verreaux, Classif. 

 Troch., 1866, 41. — Emilia goudoti Mulsant and Verreaux, Hist. Nat. Ois.-Mouch., 

 ii, 1875, 64. — [Polytmus] goudoti Gray, Hand-list, i, 1869, 131, no. 1673. — Cyanophaia 

 goudoti Elliot, Classif. and Synop. Troch., 1879, 239; Salvin, Cat. Birds Brit. Mus., 

 xvi, 1892, 234. — L[epidopyga] goudoti Hartert, Das Tierreich, Troch., 1900, 50. 



