314 EULLETIlSr 50, UNITED STATES NATIONAL MUSEUM. 



S2nzeUa i^ociulis SchATER, Proo. Zool. Soc. Lfiiid., 1858, 304 (La Parada, Oaxaca) ; 

 1859, 365 (Jalapa, Vera Cruz) ; (?) 1884, 174 (Valley of Mexico); (?) Cat. 

 Am. Birds, 1862, 114, part (Orizaba). — Stmichrast, Mem. Best. Soc. N. H., 

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

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

 Vera Cruz; Oaxaca). — Lawrence, Bull. U. S. Nat. Mus., no. 4, 1876, 21 

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

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

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

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

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

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

 Vera Cruz; Villa de Elba) . 



tS.[pizella] socialis Ridgway, Man. N. Am. Birds, 1887, 418, part. 



(?) Spizella socialis yar. arizonse (not of Coues?) Lawrence, Bull. U. S. Nat. Mus., 

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



Spizella socialis mexicana 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 aS'. .v. 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 b}^ a ver}' distinct black postocular line, 

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

 and scapulars rusty l)rown broadh^ streaked vrith black; rump and 

 upper tail-coverts plain dark gra}'; tail grayish dusky, the rectrices 

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

 broadly tipped with light l)utf or rusty whitish: greater coverts similar, 

 but distinctly edged with light brown ; tertials blackish broadly edged 

 with deep rusty brown; primaries dusky, narrowh" edged with light 

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

 pale gra}", becoming paler (nearh^ white) on abdomen and under tail- 

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

 brown, darker at tip;^ tarsi light liax brown or dull straw color, toes 

 decidedl}" 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.) 



Immature {young aftei" first molt). — Pileum burnt umber, broadly 

 streaked with black, the median portion paler and more buli'y brown, 



^ The color uf the bill would undoubtedly be black in a summer specimen. 



