BIRDS OF NORTH AND MIDDLE AMERICA. 253 



[Pcac-ra ruficepts.] Subsp. /i. Peuaea boucardi Shakpe, Cat. Birds Brit. Mus. , xii, 

 1888, 714, part, excl. syii. Peuciva ruficeps eremceca Brown (La Puebla; 

 Orizaba) . 



Peucvca rujictps (not Anitnodronius rajicept! Casi-m) Sumichkast, Mem. Bost. Soc. 

 N. H., i, 1869, 552 (temperate region Vera Cruz; Puente Colorado, Puebla). 



AIMOPHILA CASSINII Woodhouse). 

 CASSINS SPARROW. 



Somewhat like A. <mtivalis and ^i. hottcrti, Imt much o-rayer above 

 and paler and more uniform below, the back spotted or barred instead 

 of .streaked, the flanks usually distinctly streaked, and the median 

 dark stripe of middle pair of rectrices with serrated edges. 



AdulU {sexes alike). — Above light brown, broadly streaked with light 

 gray, the pileum streaked also with black or dusky; scapulars and 

 interscapulars marked with dusky subterminal spots or bars in a light 

 brown held, the margins of the feathers light ash gray; upper tail- 

 coverts with roiuidish, cordate, or transverse subterminal spots of 

 blackish, and margined terminally with pale grayish; middle rectrices 

 light brownish gray, with a narrow, pointed median stripe of dusky, 

 this more or less irregular or serrated along" edges, the points throwing- 

 off more or less distinct indications of darker bars across the gray on 

 either side; edge of wing- pale yellow; under parts with chest, sides, 

 and flanks very pale brownish gra}', the flanks .sometimes distinctly 

 (often broadh") streaked with brown or dusky; elsewhere beneath dull 

 white (under tail-coverts sometimes pale bufly); sides of throat some- 

 times marked with a dusky submalar streak. 



Adult //irt/e.— Length (skins), 130.81-147.32 (139,45); wing, ol'.BO- 

 67.31 (♦U.L>6); tail. 00.96-71.63 (67.06); expo.sed culmen, 10.16-11.68 

 (10.92); depth of bill at base, 5.59-7.11 (6.10); tarsus. 18.54-20.57 

 (19.56); middle toe. 13.97-16.00 (14.99).' 



A<i ulf fc/u(dc.^Length (skins), 134.62-147.32 (141.99); wing, 60.96- 

 64.26 (62.74); tail. 63.50-69.85 (66.29); exposed culmen, 10.16-11.94 

 (10.92); depth of ))ill at base, 5.59-6.35 (5.84); tarsus, 18.29-20.57 

 (19.30); middle toe. 14.48-15.24 (14.99).' 



Arid division of the Lower Austral Province, chiefly within the 

 United States; south into northern Tamaulipas (Guerrero) and Nuevo 

 Leon, and in northwestern Mexico as far as State of Sinaloa (^Nlazatlan, 

 March, April); north to central and western Kansas (Fort Hays, etc.), 

 and southern Nevada (Timpahute Valley); east to coast of Texas (Cor- 

 pus Christi, etc.); west to Arizona. 



Zonofrichla cassiriii Woodhouse, Proc. Ac. Nat. Sci. Phila., vi, Apr., 1852, 60 

 (San Antonio, Texas; coll. Ac. Nat. Sci. Phila. ).—Baiei), in Stansbury's 

 Rep. Gt. Salt Lake, 1852, 330 (Texas) . 



Passerculus cassinii Woodhouse, Rep. Sitgreaves' Expl. Zuni and Col. K., 1853, 

 85, pi. 4 (near San Antonio, Texas). 



^ Twenty specimens. ^ Five specimens. 



