BIRDS OF NORTH AND MIDDLE AMERICA. 245 



[Hsemophila] rufescena Sclatee and Salvin, Nom. Av. Neotr., 1873, 33. 

 E.[mhemagra] rufeKceiis Gray, Gen. Birds, ii, 1849, 361. 

 [Embernagra] rufescens Gray, Hand-list, ii, 1870, 91, no. 7343. 

 Embemagra pyrgitoides Lafresnaye, Rev. ZooL, 1839, 97 (Mexico). 

 [Buarremon] pijrgitoides Bonaparte, Consp. Av., i, 1850, 484 (Mexico). 

 Oeospizopsis mekiHotis Bonaparte, Compt. Rend., xlii, May, 1856, 955 (Mexico). — 



ScLATEE, Proo. Zool. Soc. Lend., 1856, 306 (Cordova, Vera Cruz). 

 Aimophila rufescens discolor Ridgway, Proc. U. S. Nat. Mus., x, sig. 37, Aug. 6, 1888, 



587, in text (Segovia R., Honduras; U. S. Nat. Mus. ). 



AIMOPHILA RUFESCENS PALLIDA Nelson and Palmer. 

 ETZATLAN SPARROW. 



Similar to A. r. rufescens, but bill more slender, tarsi and toes shorter, 

 and coloi'ation paler and much more uniform above and much less 

 buffy beneath; the pileum paler chestnut, without anjr distinct median 

 grayish stripe (usually without trace of the latter) and without any 

 black lateral border or suffusion (except sometimes on anterior por- 

 tion); no black stx'eaks on hindneck nor back (except, rarely, a few 

 indistinct ones on the latter). 



Adult }nale.— Length, (skins), 165.10-177.80 (172.97); wing, 73.15- 

 75.-M (74.17); tail, 73.15-77.47 (75.18); exposed culmen, 15.75-16.51 

 (16.26); depth of bill at base, 10.16-10.41; tarsus, 23.37-25.40 (24.38); 

 middle toe, 17.78-18.03 (17.90).^ 



Adult fentale.—hQngth (skins), 177.80-182.88 (180.34); wing, 68.68- 

 71.12 (69.85); tail, 71.63-72.39 (72.01); exposed culmen, 15.24^15.75 

 (15.49); depth of bill at base, 10.16-10.41 (10.28); tarsus, 23.11-23.62 

 (23.37); middle toe, 17.78-18.03 (17.90).' 



Southwestern portion of Mexican plateau, in States of Michoacan 

 (Uruapam), Jalisco (Etzatlan; Ameca; San Sebastian; Juanacatlan), 

 and Sinaloa (Plomosas). 



Aimophila rufeseem paMida Nelson and Palmer, Auk, xi, no. 1, Jan., 1894, 43 

 (Etzatlan, Jalisco, s. w. Mexico; U. S. Nat. Mus.). 



AIMOPHILA RUFESCENS SINALOA Ridgway. 

 SINALOA SPARROW. 



Similar to A. 7\ pallida, but wing and tail longer, bill shorter and 

 relatively deeper, toes shorter, and coloration paler and grayer above 

 and at the same time more butfy beneath; sides of head paler gray, 

 and brown postocular streak narrower. 



Aduli male. — Length (skin), 177.80; wing, 77.47; tail, 83.82; exposed 

 culmen, 14.73; depth of bill at base, 10.16; tarsus, 24.89; middle toe, 

 16.51.= 



' Four specimens. " Two specimens. '' One specimen, the type. 



