| Huvudföda | Procent |
Trofisk nivå (y) |
Studerat utvecklingsstadium | Land | Observationsplats | Ref. |
|---|---|---|---|---|---|---|
| plants | 94 | 2.1 | adults | Canada | Kelly Lake, Township, Ontario | 33057 |
| zoobenthos | 78 | 3.1 | adults | Canada | Upper Jones Creek, Ontario, April 27-30, 1966. | 43809 |
| detritus | 91 | 2.1 | adults | Canada | Upper Jones Creek, Ontario, May 13-15, 1966. | 43809 |