Genus: Notonecta
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2019 | 1 | 1 | 1 | 1 |
| 2013 | 1 | 4 | 4 | 5 |
| 2012 | 1 | 1 | 1 | 1 |
| 2010 | 1 | 1 | 1 | 1 |
| 2009 | 1 | 3 | 2 | 3 |
| 2008 | 1 | 4 | 4 | 4 |
| 2007 | 2 | 2 | 2 | 2 |
| 2006 | 1 | 1 | 1 | 1 |
| 2005 | 1 | 2 | 2 | 2 |
| 2004 | 1 | 1 | 1 | 1 |
| 2002 | 1 | 1 | 1 | 1 |
| 1999 | 1 | 1 | 1 | 1 |
| 1997 | 1 | 4 | 4 | 4 |
| 1996 | 1 | 6 | 6 | 7 |
| 1995 | 2 | 9 | 9 | 11 |
| 1994 | 2 | 10 | 10 | 11 |
| 1993 | 2 | 19 | 19 | 22 |
| 1992 | 2 | 13 | 15 | 18 |
| 1991 | 2 | 14 | 15 | 17 |
| 1990 | 2 | 22 | 22 | 28 |
| 1989 | 2 | 16 | 17 | 17 |
| Totalt alle år | 3 | 68 | 67 | 158 |