512 8. TEIIDJE 



California and western Arizona. It occurs in northeastern 

 Lower California and probably in northwestern Sonora. 



In California, it is restricted to the desert regions from 

 Mono Lake to the Mexican border and has been taken in 

 Mono (Mono Lake, Benton), Inyo (Big Pine, Independ- 

 ence, Lone Pine, Keeler, Olancha, Grays at 6,000 feet near 

 Kearsarge Pass, Carroll Creek, Deep Spring Valley, White 

 Mountains at 7,000 feet, Inyo Mountains, Coso Mountains, 

 Coso Valley, Coso, Darwin, Argus Range, Searls, Shepherd 

 Canyon, Panamint Valley, Panamint Mountains at Willow 

 Creek, Emigrant Canyon, Ballarat, Wild Rose Springs, 

 Death Valley at Bennett Wells and Furnace Creek, Mes- 

 quite Valley, Grapevine Canyon, Sarcobatus Flat), Kern 

 (Walker Pass, Cameron, Mohave), Los Angeles (Gorman, 

 Pallett), San Bernardino (Lone Willow Springs, Leach 

 Point Valley, Warren's Wells, Barstow, Ludlow, Providence 

 Mountains at 2,800 feet, Needles, Blythe Junction, Turtle 

 Mountains, Victorville, Hesperia), Riverside (Riverside 

 Mountain Colorado River, Blythe, Cotton wood Springs, 

 Cabazon, Coachella, Palm Springs, Palm Canyon, and on 

 the desert bases of the San Bernardino and San Jacinto 

 Mountains near Coachella), San Diego (Colorado Desert), 

 and Imperial (eight miles below Picacho, Pot Holes, Pilot 

 Knob, Calexico, Salt Creek, New River near Salt on Lake), 

 counties. It intergrades with C. /. mundus in the region of 

 Walker Pass, Kern County, and with C. /. stejnegen in 

 Antelope Valley, Los Angeles County, around the north- 

 east base of the San Jacinto Mountains in Riverside County, 

 and about the desert divides in western Imperial County. 



In Arizona, it is common along the Colorado River at 

 Yuma, Cibola and Ehrenberg, in Yuma County, at the base 

 of The Needles, Fort Mohave, and above Bill Williams 

 River in Mohave County, and has been taken at Lees Ferry, 

 Coconino County, Sentinel, Phoenix and Tempe, Maricopa 



