BIBDS OP NORTH AND MIDDLE AMEBIOA. 281 



Adult female. — Similar to adult male, but smaller and slightly duller 

 in color, the back, etc., inclining more decidedly to olive-green; length 

 (skins), 198.1-214.6 (204); wing, 89.1-95.8 (91.9); tail, 88.9-99.1 (92.2); 

 culmen, from base, 22.4-23.6 (23.1); depth of bill at base, 10.2-10.4 

 (10.4); tarsus, 25.4-26.9 (26.2); middle toe, 17.5-18 (17.8).' 



Invmature {second year f). — Similar to adult female, but still more 

 decidedly olive-green above; wings and tail dusky brownish gray, the 

 former with pale olive-grayish, the latter with yellowish olive-green 

 edgings; yellow of under parts shaded laterally with olive-greenish. 



Young. — No black on head, neck, or chest, the color being yellow- 

 ish olive-green above, pale lemon yellow beneath; otherwise as in the 

 immature stage described above. 



Southern portion of the Mexican plateau, in States of Sau Luis 

 Potosi (Valles; Toncanhuitz), Vera Cruz (Jalapa; Mirador; Orizaba; 

 Jico; Papantla), Puebla (Metlaltoyuca), Oaxaca (Pluma; Mount Zem- 

 poaltepec), Chiapas (Guichicovi), Mexico (Valley of Mexico), and 

 •Jalisco (San Sebastian). 



Fs\aTocolmi\ melanocephalus Wagler, Isis, 1829, 756 (Mexico). 



Icterus melanocephalus Hahn, in Kuster's Vog. aus Asien, Lief vi, 2, pi. 3. — Cassin, 

 Proc. Ac. Nat. Sci. Phila., 1848, 90 (Jalapa, Vera Cruz); 1867, 53 (monogr.; 

 Jalapa, Mirador, and Orizaba, Vera Cruz); Illuatr. Birds Cal., Tex., etc., 

 1854, pi. 21 (not description, which = I.m. audubonii). — Sclatbr, Proc. 

 Zool. Soc. Lond., 1856, 301 (Mexico); 1858, 97, part (tierra caliente, Vera 

 Cruz; crit); 1859, 365 (Jalapa); Cat. Am. Birds, 1862, 132 (s. Mexico); 

 Ibis, 1883, 365 (monogr.); Oat. Birds Brit. Mus., xi, 1886, 375, part.— Baird, 

 Rep. Pacific E. R. Surv., ix, 1858, 543; Oat. N. Am. Birds, 1859, no. 410.— 

 SuMiCHRAST, Merii. Bost. Soc. N. H., i, 1869, 553 (temperate region, Vera 

 Cruz). — Baird, Brewer, and Ridgway, Hist. N. Am. Birds, ii, 1874, 186. — 

 Lawrence, Bull. U. S. Nat. Mus., no. 4, 1876, 23 (Guichicovi, Chiapas, 

 Sept.).— Ridgway, Proc. U. S. Nat. Mus., iii, 1880, 236.— Salvin and God- 

 man, Biol. Oentr.-Am., Aves, i, 1887, 468, part. — Chapman, Bull. Am. Mus. 

 N. H., X, 1898, 30 (Jalapa; song).— Lantz, Trans. Kans. Ac. Sci. for 1896-97 

 (1899), 222 (S. Tomas, Guatemala). 



[Iclerus] melanocephalus Sclatbr and Salvin, Nom. Av. Neotr., 1873, 36. 



I[(ieru.s\ melanocephalus Cabanis, Mus. Hein., i, 1851, 185 (Jalapa). — Ridgway, 

 Man. N. Am. Birds, 1887, 374. 



[Xanthomus'] melanocephalus Bonaparte, Consp. Av., i, 1850, 434, part. 



[Icterus melanocephalus} var. melanocephalus Baird, Brewer, and Ridgway, Hist. 

 N. Am. Birds, ii, 1874, 182. 



[Icterus melanocephalus] b. Subsp. typica Sclater, Cat. Birds Brit. Mus., xi, 1886, 

 375, in list of specimens (Jalapa and Orizaba, Vera Cruz; Oaxaca). 



Icterus graduacauda liSssoN, Rev. Zool., 1839, 105 (Mexico). 



I[ctei-us] graduacauda Gray, Gen. Birds, ii, 1844, 343. 



(?) Icterus audubonii (not of Giraud) Sclater, Cat. Am. Birds, 1862, 132 (Jalapa 

 and Orizaba, Vera Cruz). 



Icterus audubonii Sumichrast, Mem. Bost. Soc. N. H., 1, 1869, 553 (temperate 

 region, Vera Cruz).— American Ornithologists' Union, Check List, 2d ed., 

 1895, no. 503, part (Oaxaca). 



Icterus auduboni Ferrari-Perez, Proc. U. S. Nat. Mus., ix, 1886, 150 (Jalapa, 

 Aug., Sept.). 



' Three specimens. 



