| | | Kind of type | Full locality |
| | | [not recorded as a type] | Northwestern U.S.A., Oregon: 10 mi NE of Denio |
| | | [not recorded as a type] | Northwestern U.S.A., Oregon: near Fields |
| | | [not recorded as a type] | Southwestern U.S.A., Nevada, Humboldt County: few mi W of Denio junc on hwy 140 |
| | | [not recorded as a type] | Northwestern U.S.A., Oregon: Narrows, 5 mi N |
| | | [not recorded as a type] | Northwestern U.S.A., Oregon: Malheur Envir. Field Station |
| | | [not recorded as a type] | Northwestern U.S.A., Oregon: Narrows, 5 mi N |
| | | [not recorded as a type] | Southwestern U.S.A., Nevada, Humboldt County |
| | | holotype of species Idiostatus inermoides Rentz, 1973 | Southwestern U.S.A., Nevada, Humboldt County: 1.5-4.5 mi W of Denio Jct. on Highway 140 |