BIRDS OF NORTH AND MIDDLE AMERICA. 857 



Adult female.— Length, (skins), 148-173 (164); wing, 86-92 (89.5); 

 tail, 64.5-69 (66); exposed culmen, 15-17 (15.8); tarsus, 20.5-22 

 (21.2); middle toe, 12.5-14 (13.2).« 



Pacific slope of Mexico, in States of Chihuahua (Hacienda San 

 Rafael), Sonora (Alamos; Ysleta), Sinaloa (Mazatlan; Presidio, near 

 Mazatlan; Escuinapa), Jalisco (Guadalajara; Zapotlan; Beltran; 

 Santa Ana; Ocotlan; Barranca Ibarra; Ixtapa; Bolanos), Michoacan 

 (Los Reyes; near Ahuacana), Morelos (Puente de Ixtla), Colima 

 (Plains of Colima; Colima) , Guerrero (Amula; Acahuitzotla; Papaya; 

 Acapulco). and Oaxaca (Dondominguillo) , and Territory of Tepic 

 (Santiago; San Bias); northward into southern Arizona (Ramsey 

 Canon, Huachuca Mountains., 7,500 ft.); eastward (perhaps acciden- 

 tally) to Nuevo Leon (Cerro de la Silla, one specimen, March). 



Hadroslomns albiventris Lawrence, Ann. Lye. Nat. Hist. N. Y., viii, 1867, 475 

 (Plains of Colima. s. w. Mexico; coll. U. S. Nat. Mus.); Mem. Bo.st. Soc. N. 

 H., ii, 1874, 289 (Mazatlan, Sinaloa; Plains of Colima). — Sclater, Cat. Birds 

 Brit. Mus., xiv, 1888, 335 (Presidio, near Mazatlan). 



[Tityra]? albiventris Gray, Hand-list, i, 1869, 368, no. 5599. 



P[latypsaris] albiventris Ridgway, Man. N. Am. Birds, 1887, 325, part (w. Mexico; 

 Arizona). 



Platypsaris albiventris Price, Auk, v, 1888, 425 (Huachuca Mts., s. Arizona, 7,500 

 ft.); Proc. Calif. Ac. Sci., ser. 2, 1889, 89 (Huachuca Mts.).— American 

 Ornithologists' Union Committee, Auk, vii, 1890, 62; Check List, 2d ed., 

 1895, no. 441.1.— JouY, Proc. U. S. Nat. Mus., xvi, 1893, 783 (Barranca 

 Ibarra, Jalisco). — Bendire, Life Hist. N. Am. Birds, ii, 1895, 230. — Bailey 

 (Florence M.), Handb. Birds W. U. S., 1902, 245.— Miller (W. D.), Bull. 

 Am. Mus. N. H., xxi, 1905, 356 (Escuinapa, Sinaloa). 



[Platy psaris] albiventris Sharpe, Hand-list, iii, 1901, 163. 



P[latypsaris] aglaise albiventris Ridgway, Proc. U. S. Nat. Mus., xiv, no. 868, 

 Oct. 26, 1891, 469 (w. Mexico). 



Platypsaris aglaise albiventris Nelson, North Am. Fauna, no. 14, 1899, 47 (range). 



[Hadrostomus] aglaise (not Pachyrhynchus aglaias Lafresnaye) Sclater and Salvin, 

 Nom. Av. Neotr., 1873, 56, part. 



Hadrostomus aglaise Lawrence, Bull. U. S. Nat. Mus., no. 4, 1876, 28 (Dondo- 

 minguillo, Oaxaca). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1890, 

 121, part (Ysleta, Sonora; Presidio, near Mazatlan; Mazatlan; Zapotlan, 

 Beltran, and Santa Ana. Jalisco; Plains of Colima). 



PLATYPSARIS AGLAISE INSULARIS (Ridgway). 

 TRES MARIAS BECARD. 



Adult male similar in coloration to that of P. a. yucatanensis but 

 bill much smaller, the wing and tarsus averaging decidedly shorter; 

 adult female similar in coloration to that of P. a. albiventris but 

 decidedly smaller, especially the bill. 



Adult maZe.— Length (skins), 153-171 (165); wing, 85.5-86 (85.7); 

 tail, 63-65.5 (64.5) ; exposed culmen, 13.5-14.5 (14); tarsus, 19-21.5 

 (20.2); middle toe, 12-12.5 (12.3).'' 



o- Ten specimens. b Three specimens. 



