BIRDS OF NORTH AND MIDDLE AMERICA. 321 



(?) Spizella piisilla (not Fringilla pusilla Wilson?) Brown, Bull. Nutt, Orn. Club, 

 vii, 1882, 38 (Boerne, Kendall Co., Texas, winter). 



Spizella pusilla Allen, Bull. Mus. Comp. ZooL, iii, 1872, 145 (Cheyenne, Wyo- 

 ming, Aug.); Proc. Bost. Soc. N. H., xvii, 1874, 57 (Davis Creek and Bad 

 Lands of Little Missouri E., Montana). 



Spizella pusilla arenacea Chadboukne, Auk, iii, Apr., 1886, 248 (Laredo, s. w. 

 Texas, Nov.; coll. A. P. Chadbourne).— Lloyd, Auk, iv, 1887, 292 (Tom 

 Green and Concho counties, Texas, fall and winter).— Ridgway, Man. N. 

 Am. Birds, 1887, 593. — Amehican Ornithologists' Union Committee, Suppl. 

 to Check List, 1889, 13; Check List, abridged ed., 1889, and 2d ed., 1895, 

 no. 563a.— Chapman, Auk, viii, 1891, 318 (Mandeville, Louisiana, 1 spec, 

 winter). — Richmond, Auk, xiv, 1897, 345, pi. 3. 



S. [pizelki] pusilla arenacea Ridgway, Man. N. Am. Birds, 1887, 420. 



Spizella arenacea Meeeiam, Auk, v, Oct., 1888, 402 (Fort Pierre, South Dakota; 

 Valentine, Nebraska; descr. breeding plumage). — Cooke, Bird Migr. Miss. 

 Val., 1888, 202. 



SPIZELLA WORTHENI Ridgway. 

 UEXICAN FIELB SPARROW. 



Much like 8. pusilla arenacea^ but tail much shorter (both absolutely 

 and relatively); wing-bands much less distinct, and sides of head gray, 

 relieved only by a whitish orbital ring, there being no brown postocu- 

 lar streak, as in 8. p. puHilla and 8. p. arenacea. 



AdAilts (sexes alike). — Forehead (more or less extensively) gray; rest 

 of pileum cinnamon-brownish, narrowlj^ and indistinctly streaked with 

 dusky (streaks sometimes obvious only on occiput or nape); back and 

 scapulars pale broccoli brown, without admixture of rusty, narrowly 

 streaked with black; rump and upper tail-coverts brownish gray, the 

 latter with indistinct mesial streaks of darker; tail dark hair brown, 

 the rectrices edged with pale gray; larger wing-coverts and tertials 

 duskj"^, the middle coverts with a dull whitish or pale buffy spot at 

 tip of outer web, forming a somewhat interrupted band; greater 

 coverts edged with pale buffy grayish, but without distinct paler tips; 

 tertials edged with pale butfy grayish or pale broccoli brown; sides of 

 head gray, relieved only by a whitish orbital ring; under parts dull 

 whitish, shaded with pale buflfy grayish on chest and sides; bill pink- 

 ish brovs^n or cinnamon-rufous; tarsi and toes deep brownish. 



Adult maZe.— Length (skins), 126.49-138.94 (133.10); wing, 66.80- 

 70.10 (68.83); tail, 59.69-64.26 (61.72); exposed culmen, 9.40-9.91 

 (9.65); depth of bill at base, 5.33-5.84(5.59); tarsus, 17.53-18.64(18.03); 

 middle toe, 12.19-12.70 (12.45).^ 



Adult female.— \j&i\g^ (skins), 128.52-133.35 (131.06); wing, 64.77- 

 68. 33 (66. 55) ; tail, 57. 66-63. 50 (60. 71) ; exposed culmen, 8. 89-9. 14 (9. 01) ; 



' Seven specimens. 

 17024—01 21 



