| Hydrometra stagnorum | | 2007-09-07 | 2007-09-07 | Slettebøvannet (Rogaland, Norway) | |
| Hydrometra sp. | | 2004-09-09 | 2004-09-01 | Harestuvannet (Akershus, Norway) | |
| Hydrometra stagnorum | | 1993-09-27 | 1993-09-27 | Jåbekkvannet (Agder, Norway) |  |
| Hydrometra stagnorum | | 1991-09-16 | 1991-09-16 | Jåbekkvannet (Agder, Norway) | |
| Hydrometra stagnorum | | 1991-09-02 | 1991-09-02 | Mosvatnet (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1991-05-07 | 1991-05-07 | Mosvatnet (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1990-09-10 | 1990-09-10 | Mosvatnet (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1994-09-28 | 1994-09-28 | Mosvatnet (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1993-09-20 | 1993-09-20 | Rossevatn (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1993-05-25 | 1993-05-25 | Rossevatn (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1992-09-22 | 1992-09-22 | Rossevatn (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1990-09-25 | 1990-09-25 | Rossevatn (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1994-09-08 | 1994-09-08 | Tornesvatnet (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1994-09-12 | 1994-09-12 | Arkavatnet (Rogaland, Norway) | |
| Hydrometra stagnorum | | 1989-08-28 | 1989-08-28 | Arkavatnet (Rogaland, Norway) | |