ORDEK PASSEKES. 269 



Junco insuUris Ridgway. Guadalupe Junco. [572.] 



Junco insularis Ridqway, Bull. Geol. & Geog. Surv. Terr., II, No. 2, 

 April 1, 1876, 188. (Guadalupe Island, Lower California.) 



Range. — Guadalupe Island, Lower California. 



Genus AMPHISPIZA Coues. 



Amphispiza Coues, Birds Northwest, 1875, 234. Type, by orig. desig., 

 Emberiza bilineata Cassin. 



Amphispiza bilineata (Cassin). 



Range. — Arid plains of western United States from southeastern 

 California and northern Nevada east to western Texas and south into 

 northern Mexico. 



a. Amphispiza bilineata bilineata (Cassin). Black-throated Sparrow. [573.] 



Emberiza bilineata Cassin, Proc. Acad. Nat. Sci. Phila., V, 1850, 104, 

 pi. 3. (Rio Grande, Texas.) 



Range. — Lower Sonoran Zone of northern middle Texas south into Nuevo 

 Leon and Tamaulipas. 



b. Amphispiza bilineata deserdcola Ridgway. Desert Sparrow. [573a.] 



Amphispiza bilineata deserticola Ridgway, Auk, XV, July, 1898, 229. 

 (Separates publ. May 13.) (Tucson, Arizona.) 



Range. — Arid plains of Sonoran zones from east central California, north- 

 ern Nevada, northern Utah, southeastern Colorado, and western Texas 

 south to central Lower California, Chihuahua, and Sonora; winters from 

 southern border of United States southward. 



Amphispiza belli (Cassin). Bell's Sparrow. [574.] 



Emberiza belli Cassin, Proc. Acad. Nat. Sci. Phila., V, 1850, 104, pi. 4. 

 (Near Sonoma or San Diego, California.) 



Range. — Valleys and foothills of California, west of Sierra Nevada, 

 and Colorado Desert from about latitude 38° south to northwestern 

 Lower California; also on San Clemente Island. 



