Family: Fjærmygg (Chironomidae)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2023 | 1 | 1 | 1 | 2 |
| 2022 | 1 | 1 | 1 | 1 |
| 2017 | 1 | 2 | 2 | 2 |
| 2016 | 1 | 3 | 3 | 3 |
| 2015 | 1 | 10 | 9 | 17 |
| 2014 | 3 | 5 | 5 | 6 |
| 2013 | 1 | 100 | 91 | 131 |
| 2012 | 1 | 4 | 4 | 10 |
| 2011 | 1 | 2 | 2 | 2 |
| 2010 | 1 | 2 | 2 | 3 |
| 2009 | 1 | 2 | 2 | 3 |
| 2008 | 2 | 11 | 8 | 13 |
| 2007 | 1 | 3 | 3 | 3 |
| 2006 | 1 | 7 | 7 | 7 |
| 2005 | 1 | 6 | 6 | 6 |
| 2004 | 2 | 10 | 10 | 15 |
| 2003 | 1 | 7 | 7 | 11 |
| 2002 | 3 | 6 | 6 | 11 |
| 2001 | 1 | 6 | 8 | 11 |
| 2000 | 2 | 3 | 3 | 6 |
| 1999 | 1 | 4 | 4 | 4 |
| 1998 | 1 | 7 | 7 | 17 |
| 1997 | 1 | 21 | 20 | 51 |
| 1996 | 1 | 26 | 25 | 57 |
| 1995 | 1 | 33 | 30 | 83 |
| 1994 | 2 | 51 | 47 | 111 |
| 1993 | 24 | 48 | 44 | 87 |
| 1991 | 57 | 48 | 48 | 202 |
| 1990 | 63 | 56 | 56 | 194 |
| 1989 | 90 | 70 | 72 | 250 |
| Totalt alle år | 128 | 369 | 328 | 1319 |