| | | | Kind of type | Full locality |
| | | | [not recorded as a type] | Northwestern U.S.A., Oregon, Jefferson County |
| | | | [not recorded as a type] | Northwestern U.S.A., Montana: W. Gallatin Canyon |
| | | | [not recorded as a type] | Northwestern U.S.A., Montana, Gallatin County: Mystic Lake |
| | | | [not recorded as a type] | Northwestern U.S.A., Montana: Weeksville |
| | | | [not recorded as a type] | Northwestern U.S.A., Montana: Garrison |
| | | | [not recorded as a type] | Northwestern U.S.A., Montana: Lake View |
| | | | [not recorded as a type] | Northwestern U.S.A., Montana, Gallatin County: Muir, Bozeman Tunnel |
| | | | [not recorded as a type] | Northwestern U.S.A., Wyoming: Yellowstone National Park; Mammoth Hot Springs |
| | | | [not recorded as a type] | Southwestern U.S.A., Utah, Box Elder County |
| | | | [not recorded as a type] | Southwestern U.S.A., Utah, Cache County |
| | | | [not recorded as a type] | Southwestern U.S.A., Utah, Summit County |
| | | | [not recorded as a type] | Southwestern U.S.A., Utah, Utah County |
| | | | [not recorded as a type] | Southwestern U.S.A., Utah, Wasatch County |
| | | | [not recorded as a type] | Western Canada, British Columbia: Summerland, Penticton |
| | | | [not recorded as a type] | Southwestern U.S.A., Nevada: Smith Valley |
| | | | unspecified primary type of species Steiroxys trilineata (Thomas, 1870) | Northwestern U.S.A., Colorado |
