| | | Kind of type | Full locality |
| | | [not recorded as a type] | Southwestern U.S.A., California: Ralston Rock |
| | | [not recorded as a type] | Southwestern U.S.A., California, Alpine County |
| | | [not recorded as a type] | Southwestern U.S.A., California, El Dorado County |
| | | [not recorded as a type] | Southwestern U.S.A., California, Mono County |
| | | [not recorded as a type] | Southwestern U.S.A., California, Tuolumne County |
| | | holotype of species Idiostatus fuscus Caudell, 1934 | Southwestern U.S.A., California, El Dorado County: Ralston Peak |