When it is recorded
Jan0
Feb0
Mar36
Apr17
May23
Jun6
Jul5
Aug2
Sep9
Oct8
Nov3
Dec0
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Gwynedd | Wales | 22 | |
| 2 | Lincolnshire | England | 14 | |
| 3 | Cambridgeshire | England | 7 | |
| 4 | Worcestershire | England | 6 | |
| 5 | North Lanarkshire | Scotland | 6 | |
| 6 | Nottinghamshire | England | 4 | |
| 7 | Argyll and Bute | Scotland | 3 | |
| 8 | Powys | Wales | 3 | |
| 9 | Carmarthenshire | Wales | 3 | |
| 10 | Glasgow City | Scotland | 3 | |
| 11 | Denbighshire | Wales | 3 | |
| 12 | Falkirk | Scotland | 3 | |
| 13 | North Yorkshire | England | 2 | |
| 14 | West Berkshire | England | 2 | |
| 15 | Ceredigion | Wales | 2 |
22 England21 Scotland45 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 24 counties in all.
About this species
- Records since 2000
- 113
- Peak month
- March
- Counties with records
- 24
- Group
- Mayflies
- NBN Atlas records since 2000
- 114
- Conservation designations
- GB Red List (2001 IUCN criteria)
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Ephemeroptera
- Family
- Caenidae
- Genus
- Caenis
- Name with authority
- Caenis horaria (Linnaeus, 1758)
- Described
- 1758
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q2932828 · GBIF 5757628