| Hydroporus obscurus | | 1991-09-12 | 1991-09-12 | Madsvannet (Nordland, Norway) |  |
| Hydroporus obscurus | | 1991-06-14 | 1991-06-14 | Seljebøvatnet (Møre og Romsdal, Norway) | |
| Hydroporus obscurus | | 1989-09-19 | 1989-09-19 | Grindheimsvatnet (Agder, Norway) | |
| Hydroporus obscurus | | 1990-09-26 | 1990-09-26 | Opsangervatnet (Vestland, Norway) | |
| Hydroporus obscurus | | 1989-09-25 | 1989-09-25 | Opsangervatnet (Vestland, Norway) | |
| Hydroporus obscurus | | 1991-09-18 | 1991-09-18 | Svartaholtjørnet (Vestland, Norway) | |
| Hydroporus obscurus | | 1989-09-21 | 1989-09-21 | Svartaholtjørnet (Vestland, Norway) | |
| Hydroporus obscurus | | 1991-08-28 | 1991-08-28 | Kruktjønna (Trøndelag, Norway) | |
| Hydroporus obscurus | | 1992-09-22 | 1992-09-22 | Rossevatn (Rogaland, Norway) | |
| Hydroporus obscurus | | 1992-06-03 | 1992-06-03 | Rossevatn (Rogaland, Norway) | |
| Hydroporus obscurus | | 1991-05-27 | 1991-05-27 | Rossevatn (Rogaland, Norway) | |
| Hydroporus obscurus | | 1990-09-25 | 1990-09-25 | Rossevatn (Rogaland, Norway) | |
| Hydroporus obscurus | | 1990-05-31 | 1990-05-31 | Rossevatn (Rogaland, Norway) | |
| Hydroporus obscurus | | 1989-09-06 | 1989-09-06 | Rossevatn (Rogaland, Norway) | |
| Hydroporus obscurus | | 1990-05-25 | 1990-05-25 | Elgtjern (Trøndelag, Norway) | |
| Hydroporus obscurus | | 1991-09-12 | 1991-09-12 | Arkavatnet (Rogaland, Norway) | |
| Hydroporus obscurus | | 1990-06-01 | 1990-06-01 | Krussætertjern (Østfold, Norway) | |
| Hydroporus obscurus | | 1992-09-16 | 1992-09-16 | Hjørungdalsvatnet (Møre og Romsdal, Norway) | |
| Hydroporus obscurus | | 1992-06-11 | 1992-06-11 | Hjørungdalsvatnet (Møre og Romsdal, Norway) | |