36S BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Young male. — Similar to the adult male but general coloration 

 slightly duller, feathers of upper parts (especially on lower back 

 and rump) tipped or terminall}" margined with pale brown, rectrices 

 usually tinged terminally with brownish huffy, under parts of body 

 tinged with huffy brownish, and an indistinct malar or rictal stripe 

 of pale brownish. 



Western and southern Mexico, in States of Oaxaca (Oaxaca City; 

 Tamazulapam; Iluajuapam), Guerrero (Chilpancingo ; Omilteme; El 

 Limon; Tlapa; Iguala; Sierra Madre del Sur; Tepetlapa; Vente de 

 Zopilote; Zurfibango del Rio), Puebla (Tehuacan; Atlixco), Morelos 

 (Cuernavaca; Yautepec), Jalisco (Bolanos), and Sonora (Opodepe; 

 La Chumata). 



Cyanomyia (?) sordida Gould, Auu. and Mag. N. H., iv, 1859, 97 (Oaxaca, Mexico; 

 coll. J. Gould). 



Cyanomyia sordida Sclater, Proc. Zool. Soc. Lond., 1859, 386 (Oaxaca). 



U[ranomitra] sordida Cabanis and Heine, Mua. Hein., iii, 1860, 41, footnote 

 (Oaxaca) . 



Phseoptila sordida Gould, Mon. Troch., pt. xxii, July, 1861, pi. 340 (vol. v, pi. 

 340); Introd. Troch., oct. ed., 1861, 169.— D'Oca, La Naturaleza, iii, 1875, 

 210; Troq. de Mex., 1875, 52, pi. (11), fig. 41.— Elliot, Classif. and Synop. 

 Troch., 1879, 10.— Ridgway, Proc. U. S. Nat. Mus., iii, 1880, 309 (Oaxaca).— 

 Salvin, Cat. Birds Brit. Mus., xvi, 1892, 63 (Sierra Madre del Sur, Chilpan- 

 cingo, Tepetlapa, Vente de Zopilote, and Omilteme, Guerrero; Oaxaca).— 

 Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1892, 260 (Bolanos, Jalisco?; 

 Cuernavaca, Morelos; Atlixco, Puebla; etc.). — ^Hartert, Novit. Zool., i, 

 1894, 61 (Zumbango del Rio and Chilpancingo, Guerrero). — Boucard, Gen. 

 Hum. Birds, 1894, 109 (Oaxaca; Puebla).— Hartert (E. and C), Novit. 

 Zool., i, 1894, 19 (Zumbango del Rio and Chilpancingo, Guerrero). — Thayer 

 and Bangs, Proc. Biol. Soc. Wash., xix, 1906, 18 (Opodepe and La Chumata, 

 n.-centr. Sonora). 



[Phseoptila] sordida Sclater and Salvin, Nom. Av. Neotr., 1873, 93. — Sharpe, 

 Hand-list, ii, 1900, 110. 



P[haeoptila] sordida Hartert, Das Tierreich, Troch., 1900, 64 (monogr.). 



Leucolia sordida Mulsant and Verreaux, Classif. Troch., 1865, 35. 



[Hylocharis] sordida Gray, Hand-list, i, 1869, 152, no. 1957. 



Doleromya sordida Boucard, Notes quelques Troch., 1873, 14 (Oaxaca City; 

 Atlixco, Puebla; habits); Ann. Soc. Linn. Lyon, xx, 1873, 282 (Atlixco). — 

 Mulsant and Verreaux, Hist. Nat. Ois.-Mouch., i, livr. 3, 1874, 207 (Oaxaca; 

 Atlixco; etc.); iv, livr. 3, 1878, 168. 



[Doleromya] sordida Mulsant, Ann. Soc. Linn. Lyon, xxii, 1876, 204. 



Phseoptila zonura Gould, Introd. Troch., oct. ed., 1861, 170 (Bolanos, Jalisco; 

 Loddiges coll.). — D'Oca, La Naturaleza, iii, 1875, 304; Los Colibris Mex., 



1875, 58 (cites fig. 47). 



[Hylocharis] zonura Gray, Hand-list, i, 1869, 152, no. 1958. 



[Doleromya sordida] var. zonura Mulsant, Ann. Soc. Linn. Lyon, n. s., xxii, 



1876, 204. 



Genus CYNANTHUS Swainson. 



Cynanthus Swainson, Philos. Mag., n. s., i, June, 1827, 441. (Type C. latirostris 

 Swainson; see Stone, Auk, xxiv, 1907, 192; Allen, Bull. Am. Mus. N. H., 

 xxiii, 1907, 347; xxiv, 1908, 34.) 



