BIEDS OF NOKTH AND MIDDLE AMERICA. 321 



(?) Spizella puailla (not Frinijilla pusilla Wilson?) Brown, Bull. Nutt. Orn. Club, 

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



SpizeUa pusiUd Allen, Bull. Mus. Comp. Zool., iii, 1872, 145 (Cheyenne, Wyo- 

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

 Lands of Little Missouri R. , jNIontana ) . 



Spizella pusilla arenacfa Chadboi-rne, 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. — AiMerican 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.[pizella] pusilla arenarm Ridgway, Man. N. Am. Birds, 1887, 420. 



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

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

 Val., 1888, 202. 



SPIZELLA WORTHENI Ridgway. 

 MEXICAN FIELD SPARROW. 



Much like S. pusilla arenacea, but tail much .shorter (both absolutely 

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

 relieved only b}^ a whitish orbital ring, there being no brown postocu- 

 lar streak, as in S. j). pusilla and ^S'. p. arenacea. 



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

 of pileum cinnamon-brownish, narrowly and indistinctly streaked with 

 dusk}' (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 

 dusk}^ 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 butfy grayish, but without distinct paler tips; 

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

 head gray, relieved onl}- by a whitish orbital ring; under parts dull 

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

 ish brown or cinnamon-rufous; tarsi and toes deep brownish. 



Adult //^r/7^.— 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, 17.53-18.54(18.03); 

 middle toe, 12. 19-12.70 (12.45).^ 



Adult female.— l^ength (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 



