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). 



Campylorhynckus brunneicapiUus (not of Lafresnaye) Sclater, Proc. Ac. Nat. Sci. 



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



(Guanajuato).— CouEs, Birds Col. VaL, 1878, L56, part (in synonomy and 



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



(Guanajuato; Valley of Mexico). 

 \_Cayn'pylorhync}mf\ brunnncap i I Ins ^ci^ater and Salvin, Nom. Av. Neotr., 1873, 5, 



part. 

 Clampylorhynchns] brunneicapiUus Ridgway, Man. N. Am. Birds, LS87, 547, part 



(Guanajuato). 

 Heleodytes brunneicapiUus Jouy, Proc. U. S. Nat. Mus., xvi, 1894, 776 (Ahualulco, 



San Luis Potosi; habits). — American Ornithologists' Union, Check List, 



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

 H[eleodytes'] brunneicapiUus Ridgway, Man. N. Am. Birds, 2d ed., 1896, 547, part 



(Guanajuato). 

 Heleodytes brunneicapiUus obscurus 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). 

 CACTUS WREN. 



Similar to //. h. hnmneicapillu.'^, but larger and with coloration 

 paler, especially the butf of posterior under parts. 



Adult wa^6^— 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(28.8); 

 middle toe, 18-20 (19.2). « 



Adult female.— Length (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). « 



« Twenty-nine specimens. 



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



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. 



