256 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



belt).— FisHEE (A. K.), North Am. Fauna, no. 7, 1893, 47 (Hesperia, e. of 

 Cajon Pass, s. e. California; e. base Charleston Mts., and Vegas Wash., b. 

 Nevada; near mouth of Santa Clara R., s. Utah; jimction of Bear Creek and 

 Virgin R., Arizona).— Bbndikb, Life Hist. N. Am. Birds, ii, 1895, 63, part.— 

 Miller (W. De W.), Bull. Am. Mus. N. H., xxii, 1900, 344 (Matalotes, etc., 

 n. w. Durango; crit.).— Hunn, Auk, xxiii, 1906, 421 (Silver City, New 

 Mexico, resident).— Grinnbll (J.), Univ. Calif. Pub. Zool., v, 1908, 61 (base 

 of San Bernardino Mts., at Cushenbury Springs, s. California, Aug.). — 

 Hollisteb, Auk, xxv, 1908, 458 (Needles, s. e. California, common). 



Dryobates scalaris bairdii Stephens, Auk, vii, 1890, 297 (Colorado Desert). 



Dryobates scalaris lucasarvus (not Picus lucasanus Xantus) American Ornitholo- 

 gists' Union, Check List, 2d ed., 1895, no. 396o, part; 3d ed., 1910, 188, 

 part.— Miller (G. S.), Auk, xi, 1894, 178 (Whitewater, San Diego Co., 

 California). — Bendirb, Life Hist. N. Am. Birds, ii, 1895, 65, part. — Stone, 

 Proc. Ac. Nat. Sci. Phila., 1905, 681 (Colony and Cocopah Major Mts., Colo- 

 rado delta. Lower California). 



Dryobates Ivmsanus Grinnbll (J.), Pacific Coast Avifauna, no. 3, 1902, 37 (near 

 Whitewater, Colorado Desert, breeding). 



DryabaUs scalaris cactopMlus Oberholsee, Proc. U. S. Nat. Mus., xli, Tune 30, 

 1911, 140, 152 (Tucs6n, Arizona; coll. U. S. Nat. Mus.).— American Orni- 

 thologists' Union Committee, Auk, xxix, 1912, 383. 



DRYOBATES SCALARIS CENTROPHILUS Cberholser. 



JALISCO WOODFECKEB. 



Similar to D. s. cactopJiUus, but slightly smaller, black bars on 

 back, etc., averaging decidedly broader, the white bars narrower 

 and (usually) less purely white, and under parts sUghtly darker; 

 decidedly smaller than D. s. lairdi, with under parts shghtly paler, 

 and black bars of back, etc., averagiag shghtly narrower. 



Adult maZe.— Length (skms), 152-185 (168); wing, 100-104.5 

 (102.6); tail, 56-63.5 (58); exposed cuhnen, 19.5-23 (21.1); tarsus, 

 16.5-17.5 (17); outer anterior toe, 11.5-13 (12.2).« 



Adult female— Length, (skins), 142-171 (153); wing, 97-103.5 

 (99.6); tail, 54-62.5 (56.9); exposed culmen, 16.5-18.5 (17.5); tar- 

 sus, 16-17 (16.4); outer anterior toe, 10.5-12 (11.4).* 



Western Mexico, from southern Durango (Ciudid Durango) through 

 Zacatecas (San Juan Capistrano) and Jalisco (Atemaj3.c; Ocotl&n; 

 Ameca; ZapotUn; Beltr&n; Zacoalco ; Arroyo de Gavildn; La Pis&gua; 

 Las Canoas; Guadalajara; Volcan de Colima; Bolanos; Miaer&l de 

 San Sebastian near Mascota), to MichoacSn (Patambfe ; Uruapim) 

 and Territory of Tepic (Arroyo de Gavilan, near Amatlan) . 



Picas scalaris (not of Wagler) Hahqitt, Cat. Birds Brit. Mus., xviii, 1890, 246, 

 part (Santa Ana, Guadalajara, Zapotlan, Beltran, Zacoalco, and Huayimic, 

 6,000 ft., Jalisco). — Salvin and Godman, Biol. Centr.-Am., Aves, ii, 1895, 

 435, part (Volcan de Colima, Bolanos, Mineral de San Sebastian near Mascota, 

 etc., Jalisco). , 



Dryobates scalaris centrophilus Oberholsbr, Proc. U. S. Nat. Mus., xli, June 30, 

 1911, 140, 157 (Ameca, Jalisco, west-central Mexico; coll. U. S. Nat. Mus.). 



o Five specimens, 6 Seven specimens. 



