| Main Ref. | Maitland, P.S. and R.N. Campbell, 1992 | ||
| Predator stage | juv./adults | ||
| Food I | zoobenthos | ||
| Food II | insects | ||
| Food III | insects | ||
| Food group | Nepomorpha | Prey Stage/Part | adults |
| Food name | aquatic bugs | ||
| Commonness | 11.2 | common (6-20%) | |
| Country | UK Engld Wal | ||
| Remark | Locality: Llyn Alaw. Between October and February; no. of fish examined=38. | ||