Eremosaprinus unguiculatus (Ross, 1939)

Material studied.

7 specimens: Arizona, La Paz Co., dunes 11 mi S Ehrenberg, 33°28'03"N, 114°36'26"W, 12.ii.-4.iii.2012; 57 specimens: Arizona, Maricopa Co., nr. Agua Caliente, 32°57'00"N, 113°17'31"W, 11.ii.-25.iii.2012; 1 specimen: California, Riverside Co., Wiley Well Rest Stop on I-10, 33°36'18"N, 114°54'15"W, 18.ii.-4.iii.2012. First records for La Paz and Maricopa Co., Arizona.