- Mar. 15, 1979, coll. A. J. Gilbert, Ethylene glycol pit trap in Ephedra area (1 o, TRSC);

San Benito Co., 8.2 mi on Panoche rd. from 1-5, March 15 April 14, 1979, coll. A. J.

Gilbert, antifreeze pit trap (1 Y, CSCA); Riverside Co., Slover Ave. dump, 315m, 34 03'

56" N 1170 21' 32" W, April 24, 2001, coll. Hawks and Yanega (1 g, UCRC); IDAHO:

Twin Falls Co., Shoshone Falls, July 10, 1975, coll. A. D. Allen (1 o, USNM); Twin

Falls Co., Shoshone Falls, September 21, 1975, coll. A. Allen, sweeping sagebrush (1 o,

TRSC; 1 Y, AAIC); NEVADA: Churchhill Co., 6mi East of Frenchman, August 22,

1972, coll. Stephen J. Chaplin (1 Y, USNM; 1 Y, TRSC); Nye Co., Mercury, July 21,

1964, onAritri (1 o, USNM); Nye Co., Mercury, February 7, 1961 (1 9, USNM);

UTAH: Washington Co., St. George, July, coll. Wickham (1 Y, CNCI); Washington Co.,

St. George (1 Y, MTEC); WASHINGTON: Grant Co., Smyrna, June 19, 1932, coll. M.

H. Hatch (1 o, FSCA);

 Remarks. This species is less frequently collected than the sympatric C.

californicus. Whether this beetle is actually less common than C. californicus or whether

they just occupy a slightly different niche is unknown. While these beetles are usually

picked up by sweeping, they occasionally show up in pitfall traps. This is probably a

case of the optimal collecting technique not being employed to obtain this species.