BIRDS OF NORTH AWD MIDDLE AMERICA. 



521 



U. S. Nat. J\rus., V, 1883, 534 (Cape SI. Lucas). — Ameiuca.n Ounitiioukustw' 

 Union, Cheek List, 1886, no. 714.— Townsend (0. H.) , Proc. U. S. Nat. Mns., 

 xiii, 1890, 136 (Cape St. Lucas).— Anthony, Zoe, iv, 1893, 245 (San Telmo 

 Valley, Lower California). 



\_Caxn,pylorhynchus\ affinis Coues, Key N. Am. Birds, 1872, 85. 



C[ampylorhynchus\ (iffinis Baied, Proc. Ac. Nat. Sci. Phila., 1859, 304, footnote 

 (diagnosis).— CouBS, Key N. Am. Birds, 2(1 ed., 1884, 275.— Ridgway, Man. 

 N. Am. Birds, 1887, 547. 



Heleodytes affinis American Oknitholoqists' Union Commfitee, Auk, xi, Jan., 

 1894, 48.— Anthony, Auk, xi, July, 1894, 210. 



Tlleleodytes'] affinis Eidgway, Man. N. Am. Birds, 2d ed., 1896, 547. 



Heleodytes brunndcapillus q^jjis Anthony, Auk, xii, July, 1895, 280, in text (crit. ) . — 

 American Ornithologists' Union, Cheek List, 2d ed., 1895, no. 7136; Auk, 

 xiv, 1897, 131.— Meakns, Auk, xix, 1902, 142, 144 (diagnosis; range).— 

 Brewster, Bull. Mus. Comp. Zool., xli, 1902, 197 (variations of plumage; 

 habits). 



Campylorhynclius brunneicapillus (not Picolaptes hrunneicapillus Lafresnaye) 

 Sharpe, Cat. Birds Brit. Mus., vi, 1881, 197 (La Paz, Lower California). 



HELEODYTES BRUNNEICAPILLUS OBSCURUS Nelson. 

 MEXICAN CACTUS WREN. 



Similar to 11. h. 'brunneicapiUiis., but whitish markings of upper 

 parts less conspicuous, much more rare linear, the general color 

 duller and more grayish. 



Adult male.— Length, (skins), 172-198 (186.2); wing, 82-90 (85.1); 

 tail, 71.6-82 (76.4); exposed culmen, 19.5-25 (22.7); tarsus, 26-28 

 (27.2); middle toe, 17.5-20.5 (18.6)." 



Adndt female.— hQTigt}! (skins), 169-188 (180.7); wing, 77-84 (80.3); 

 tail, 71.5-77 (74.1); exposed culmen, 20-24(22.2); tarsus, 25-27(26.1); 

 middle toe, 16.5-18.5 (17.8).* 



Central portion of Mexican plateau, in States of Durango (Durango), 

 Zacatecas (Valparaiso; San Juan Capistrano), Jalisco (La Barca; Gua- 

 dalajara; Zacoalco; Huejuquilla), Guanajuato (Tupataro), Mexico (Val- 



" Nineteen specimens. 



b Twelve specimens. 



Specimens from different localities average, respectivel}', as follows: 



