Caenis rivulorum
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 2,004
Caenis luctuosa
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 409
Caenis horaria
- Group
- Mayflies
- Peak month
- March
- Records since 2000
- 113
Caenis robusta
- Group
- Mayflies
- Peak month
- May
- Records since 2000
- 97
Caenis pusilla
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 68