BIRDS OF NORTH AND MIDDLE AMERICA. 747 



and sides of neck; yellow of chest sharply defined posteriorly against 

 the purer white of middle breast and abdomen ; sides of breast gray, 

 passing into grayish buffy on flanks; tail averaging longer, and bill 

 much smaller. 



Adult male.— Length (skins), 113-125 (120.3); wing, 52-55 (52.8); 

 tail, 55-58 (57.2); exijosed culmen, 8.5-9 (S.9); tarsus, 20-23 (20.8).' 



Adult fmmle.— Length, {skins), 115-120 (117.7); wing, 19-54: (52); 

 tail, 53-59 (56); exposed culmen, 9; tarsus, 20-21 (20.6).' 



Mountain districts of eastern Mexico, in States of Nuevo Leon (Mon- 

 terey), San Luis Potosi (Hacienda Angostura), and northern Vera Cruz 

 (Maltrata). 



Bcmkuterus rufifrons jouyi Eidgway, Proc. U. S. Nat. Mus., xv, no. 895, July 18, 

 1892, 119 (Hacienda Angostura, San Luis Potosi; coll. U. S. Nat. Mus.). — 

 JouY, Proc. U. S. Nat. Mua., xvi, 1893, 777, part (Hacienda Angostura). 



BASILEUTERUS RUFIFRONS DUGESI Ridgway. 

 DUGES' WAEBLEE. 



Similar to B. r. jouyi, but upper parts much browner (hair brown, 

 tinged with olive, instead of gray, tinged with olive), sides of breast 

 pale buffy brown, instead of gray, and flanks more decidedly buffy; 

 tail avei'aging longer. 



Young, first plumage.^ — Above,including entire pileum, plain brown 

 (intermediate between broccoli and sepia), the middle and greater wing- 

 coverts rather broadly tipped with cinnamon, forming two distinct bands 

 across wing; a supra-auricular stripe of brownish buff, extending 

 anteriorly to above eyes; auricular region similar in color to pileum; 

 malar region and under parts deep buff, slightly paler posteriorly. 



Adult TOfflZe.— Length (skins), 118-121 (121.7); wing, 50-59 (53.9); 

 tail, 55.5-63 (58.8); exposed culmen, 9-10 (9.2); tarsus, 20-23 (21.2).* 

 Admit female.— Length (skins), 116-124 (120.3); wing, 49-52 (50); 

 tail, 52-59 (56.2); exposed culmen, 8.5-10 (9.1); tarsus, 19-22 (20.1). ' 

 Western and central Mexico, in States of Sinaloa (Plomosas; Sierra 

 Madre near Mazatlan), Jalisco (San Sebastian; Barranca Ibarra; 

 Zapotlan; Talpa), Michoacan (Patzcuaro), Guerrero (Tlapa), Oaxaca 

 (Juquila; Cuicatlan; Oaxaca), Morelos (Cuernavaca), Puebla (Tochi- 

 milco), Hidalgo (Real del Monte; El Chico), and Guanajuato. 



BasUmterusrufifrons (not Seiophagarufifrons Swainson) Baied, Review Am. Birds, 

 1865, 248, part (Sierra Madre near Mazatlan).— Lawrence, Mem. Bost. Soc. 

 N. H., ii, 1874, 270, (Sierra Madre).— Salvin and Godman, Biol. Centr.- 

 Am., Aves, i, 1881, 175, part (Sierra Madre).— Sharpe, Cat. Birds Brit. 

 Mus., X, 1885, 397, part. 



' Six specimens. ^ Three specimens. 



'The young of B. r. jouyi not seen. Compared with the young of B. r. rufifrom 

 that of B. r. dugesi is strikingly different, being conspicuously browner (or less olive) 

 above and much more strongly and purely buff below. 



* Thirteen specimens. ^ Eight specimens. 



