BIRDS OF NORTH AND MIDDLE AMERICA. 23 



Immature {?) female. — Similar to the adult female, as described, but 

 grayer above, the occiput and hindneck distinctly ashy; under parts 

 less yellowish anteriorly, the throat, chest, and sides of breast some- 

 times yellowish gray. {Immature males are variously intermediate in 

 coloration, according to age, between the adult male and feniale.) 



Southeastern Mexico, in States of Tamaulipas (Alta Mira), Vera 

 Cruz (Orizaba, etc.), Oaxaca (Barrio; Tehuantepec), Yucatan (Merida), 

 and southward to Costa Rica (San Juan; Liberia; Alajuela). 



Tanagra{Euphonia) aj^nis Lesson, Rev. Zool., 1842, 175 (Realejo, Nicaragua). 



[Euphona'} affinis Bonaparte, Consp. Av., i, 1850, 2.S3. 



E[uphonia] affinis Gray, Gen. Birds, ii, 1849, 367. 



Euphonia affinis ScLATEB., Proc. Zool. Soc. Lond., 1856, 274 (Orizaba, Vera Craz), 

 303 (Orizaba); Synop. Av. Tanagr., 1856, 100; Cat. Am. Birds, 1862, 57 

 (Orizaba; " Central America") ; Cat. Birds Brit. Mus., xi, 1886, 65 (Orizaba; 

 n. Yucatan; Belize, Brit. Honduras; Calderas, Duenas, Savana Grande, and 

 Retalhuleu, Guatemala). — Sclater and Salvin, Ibis, 1859, 16 (Guatemala). — 

 Salvin and Sclater, Ibis, 1860, 33 (Duenas, Guatemala) . — Lawrence, Ann. 

 Lye. N. Y., ix, 1868, 98 (San Juan, Costa Rica); ix, 1869, 200 (Merida, 

 Yucatan); Bull. U. S. Nat. Mus., no. 4, 1876, 18 (Barrio and Tehuantepec, 

 Oaxaca). — Frantzius, Journ. fiirOrn., 1869, 297 (Costa Rica). — Sumichrast, 

 Mem. Bost. Soc. N. H., i, 1869, 550 (tierra caliente. Vera Cruz). — Salvin 

 and GoDMAN, Biol. Centr.-Am., Aves, i, 1883, 257. — Zeledon, Anal. Mus. 

 Nac. Costa Rica, i, 1887, 109 (Liberia and Alajuela, Costa Rica). — Richmond, 

 Proc. tJ. S. Nat. Mus., xviii, 1896, 631 (Alta Mira, Tamaulipas). 



Phonasca affinis Cabanis, Journ. fiir Orn., 1860, 332 (San Jos6, Costa Rica). 



Alcroleptesl affinis Cabanis, Journ. fiir Orn., 1861, 91, in text. 



[Euphonial affinis Sclater and Salvin, Nom. Av. Neotr., 1873, 17. 



EUPHONIA MINUTA HUMILIS (Cabanis). 

 ■WHITE-VENTED ETTPHONIA. 



Adult male. — Forehead (as far backward as middle of eyes, with 

 truncated posterior outline) deep j^ellow (bright chrome or cadmium); 

 rest of head, with neck and chest, uniform dark violaceous steel blue, 

 with strongly convex or semicircular posterior outline on chest; 

 upper parts (except as described) dark steel blue, sometimes with a 

 slight greenish tinge, the upper back, however, tinged with violet; 

 inner webs of three lateral rectrices with a large subterminal patch 

 of white, that on the outermost occupying approximately one-half the 

 web; inner webs of secondaries with basal half (approximately) white; 

 under parts of body bright chroma or cadmium yellow, paler on sides 

 and flanks, where the feathers have a subterminal spot or bar of dusky 

 (the basal portion grayish) producing a mottled or clouded appearance; 

 lower abdomen, anal region, and under wing coverts white^ the last 

 tinged with pale yellow and with central (mostly concealed) spots of 

 dusky grayish; bill blackish terminally, grayish basally, the basal por- 

 tion of mandible sometimes whitish; iris dark brown; ^ legs and feet 



1 Zeledon, manuscript. 



