Colobopsis cavibregma Mackay, 2018: 107, figs. 113-118 (w.q.) U.S.A. (California). Nearctic.

Primary type information: Primary type material: holotype queen. Primary type locality: U.S.A.: California, Riverside County, Skinner Reservoir, 33.59°N, 117.07°W, 4470 ft, iii.1997, PIT U7 #3 HYM 396 (T. Prentice). Primary type depository: LACM. Secondary type information: Secondary type material: 1 paratype minor worker. Secondary type locality: same as for holotype. Secondary type depository: LACM