| | | | Kind of type | Full locality |
| | | | unspecified primary type of species Isoperla transmarina (Newman, 1838) | Northeastern U.S.A., New York, Herkimer County: taken at Trenton Falls [NY], Canada &c.; |
| | | | unspecified primary type of synonym Isoperla ventralis Banks, 1908 | Eastern Canada, Newfoundland: Grand Lake |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Fairfield County: Barnaby Center for Environmental Studies OSU . Clear Creek Metro Parks |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Hocking County: Conkles Hollow |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Scioto County: Hwy 125 jct Turkey Creek |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Fairfield County: OSU Barnebey Center |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Portage County: 4 km N Aurora at OH-306 |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Guernsey County: above discharge at Salem Rd. |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Fairfield County: Barnaby Center for Environmental Studies OSU . Clear Creek Metro Parks |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Fairfield County: Barnaby Center for Environmental Studies OSU . Clear Creek Metro Parks |
| | | | [not recorded as a type] | Northeastern U.S.A., Ohio, Ashland County: near covered bridge. Mohican State Park |
| | | | holotype of synonym Isoperla fumosa Neave, 1933 | Western Canada, Manitoba: Pigeon River |
