522 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



ley of Mexico), Hidalgo (Irolo; Tula), San Luis Potosi (Ahualulco; 

 La Posada; San Luis Potosi), and southern Tamaulipas (Jaumave). 

 Campylorhynchus brunneicapillus (not of Lafresnaye) Sclater, Proc. Ac. Nat. Sci. 



Phila., viii, 1856, 264, part (monogr.).— Duces, La Naturaleza, i, 1869, 140 



(Guanajuato).— CouES, Birds Col. Val., 1878, 156, part (in synonomy and 



range). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 1880, 67 part 



(Guanajuato; Valley of Mexico). 

 [Campylorhynchus] JntraneicapiHus Sclater and Salvin, Nom. Av. Neotr., 1873, 5, 



part. 

 C[ampylorhynchus\ brunneicapillus Ridgway, Man. N. Am. Birds, 1887, 547, part 



(Guanajuato). 

 Heleodytes brunneicapillus Jody, Proc. TJ. S. Nat. Mus., xvi,-1894, 776 (Ahualulco, 



San Luib Potosi; habits). — American Oknithologists' Union, Check List, 



2d ed., 1895, 295, no. 713, part (central Mexico). 

 H[eleodyies'] brunneicapillus Eidqway, Man. N. Am. Birds, 2d ed., 1896, 547, part 



(Guanajuato). 

 Heleodyles brunneicapillus obscwrus Nelson, Proc. Biol. Soc. Wash., xii. Mar. 24, 



1898, 58 (Tula, Hidalgo; coll. U. S. Nat. Mus.).— Mearns, Auk, xix, 1902, 



144, footnote. 



HELEODYTES BRUNNEICAPILLUS COUESI (Sharpe). 

 OAOTUS WKEN. 



Similar to II. i. hrunneicapillus^ but larger and with coloration 

 paler, especially the buflf of posterior under parts. 



Adult TOaZe.— Length (skins), 176-204 (192.6); wing, 80-92 (86.7); 

 tail, 76-86(80.7); exposed culmen, 20.5-26(23.3); tarsus, 26.5-30(28.3); 

 middle toe, 18-20 (19.2). « 



Adult female.— h&ngih. (skins), 162-198 (185.4); wing, 79-88(83.3); 

 tail , 70-84 (78. 7) ; exposed culmen, 19. 5-24 (22. 1) ; tarsus, 25. 5-29 (27. 6) ; 

 middle toe, 17.5-20 (18.8). « 



«■ 'fwenty-nine specimens. 



Series from different geographic areas average, respectively, as follows: 



Locality. 



Middle 

 toe. 



MALES. 



Ten adult males from Rio Grande Valley 



Ten adult males from Arizona and northern Sonora 



Nine adult males from southern California and northern 

 Lower California 



FEMALES. 



Ten adult females from Kio Grande'Valley 



Ten adult females from New Mexico and Arizona 



Nine adult females from southern California and northern 

 Lower California 



19.3 

 19.1 



18,8 

 18.7 



I am not able to discover any color differences whatever, except that some examples 

 from the coast district of California have the back more conspicuously streaked than 

 others. The series from the coast district of southern California is, however, very 

 unsatisfactory. 



