31-i BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Splzrila sorkdis ScLATER, Proc. Zool. Soc. Lond., 1858, 304 (La Parada, Oaxaca) ; 

 1859,365 (Jalapa, Vera Cruz) ; (?) 1864,174 ( Valley of Mexico ) ; (?) Cat. 

 Am. Birds, 1862, 114, part (Orizaba) .—Sumichrast, Mem. Bost. Soc. N. H., 

 i, 1869, 552 (temp, region Vera Cruz, breeding).— Baird, Brewer, and 

 RiDGWAY, Hist. N. Am. Birds, ii, 1874, 7, part (Orizaba, Jalapa, and Cordova, 

 Vera Cruz; Oaxaca).— Lawrence, Bull. U. S. Xat. :\Ius., no. 4, 1876, 21 

 (Gineta Mts., Chiapas, Jan.).— (?) Ferrari-Perez, Proc. U. S. Nat. Mus., 

 iii, 1886, 144 (Puebla, Huexotitla, and Teziutlan, Puebla, Xov. , Dec. ) .— Salvin 

 and GoDMAN, Biol. Centr.-Am., Aves, i, 1886, 377, part (Jalapa, etc., Vera 

 Cruz; La Parada and Guichicovi, Oaxaca; Gineta Mts., Chiapas).— American 

 Ornithologists' Union, Check List, 1886, no. 560, part (e. Mexico).— 

 Sharpe, Cat. Birds Brit. Mus., xii, 1888, 660, part (Orizaba and Jalapa, 

 Vera Cruz; Villa de Elba) . 



S. [pizella] sodalis Eidgway, Man. N. Am. Birds, 1887, 418, part. 



(?) Spizella sodalis var. arizonx (not of Coues?) Lawrence, Bull. U. S. Nat. Mus., 

 no. 4, 1876, 21 (Guichicovi, Oaxaca, Sept.). 



Spizella sodalis mexiccnm Nelson, Auk, xvi, Jan., 1899, 30 (San Cristobal, Chia- 

 pas, s. Mexico; U. S. Nat. Mus.). 



SPIZELLA SOCIALIS PINETORUM (Salvin). 

 GUATEMALAN CHIPPING SPARROW. 



Similar to S. s. mexicana, but still darker in coloration. 



Adult male. — Pileum rich dark chestnut; forehead black, divided by 

 a distinct median line or spot of ash gray; occiput similarly marked, 

 but the lateral black and median gray spots much larger; hindneck, 

 sides of neck, and auricular region deep gray; a broad superciliary 

 stripe of paler gray (whitish anteriorly), separated from the darker 

 gray of the auricular region bj- a very distinct black postocular line, 

 the lores also crossed by a black line from anterior angle of eye; back 

 and scapulars rusty brown broadly streaked with black; rump and 

 upper tail-coverts plain dark gray; tail grayish dusky, the rectrices 

 edged with gray; lesser wing-coverts plain gray; middle coverts dusky 

 broadly tipped with light buff or rusty whitish; greater coverts similar, 

 but distinctly edged with light brown ; tertials blackish broadly edged 

 with deep rusty brown; primaries dusky, narrowlj^ edged with light 

 grayish; malar region, chin, and throat white; rest of under parts 

 pale gray, becoming paler (nearly white) on abdomen and under tail- 

 coverts; maxilla dusky, with reddish brown tomia; mandible reddish 

 brown, darker at tip;' tarsi light flax brown or dull straw color, toes 

 decidedly darker; wing, 71.12; tail, 62.23; exposed culmen, 10.16; 

 tarsus, 17.27; middle toe, 12.70. (Description and measurements from 

 the type, in coll. Salvin and Godman, pine ridge of Poctun, department 

 of Peten, Guatemala, March, 1862.) 



Imiiiatttre {yowtg after first molt). — Pileum burnt umber, broadly 

 streaked with black, the median portion paler and more buffy brown, 



' The color of the bill would undoubtedly be black in a summer specimen. 



