Toothed Small Brown
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 2,052
Common Early Brown
- Group
- Stoneflies
- Peak month
- October
- Records since 2000
- 2,046
Nemoura avicularis
- Group
- Stoneflies
- Peak month
- October
- Records since 2000
- 449
Nemoura cinerea
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 285
Nemurella pictetii
- Group
- Stoneflies
- Peak month
- March
- Records since 2000
- 248
Nemoura cambrica
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 220
Nemoura erratica
- Group
- Stoneflies
- Peak month
- March
- Records since 2000
- 151
Protonemura praecox
- Group
- Stoneflies
- Peak month
- October
- Records since 2000
- 148
Amphinemura standfussi
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 67