When it is recorded
Jan0
Feb2
Mar51
Apr83
May65
Jun29
Jul23
Aug11
Sep56
Oct51
Nov29
Dec1
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Gwynedd | Wales | 68 | |
| 2 | Isle of Anglesey | Wales | 54 | |
| 3 | Powys | Wales | 48 | |
| 4 | Monmouthshire | Wales | 37 | |
| 5 | Na h-Eileanan Siar | Scotland | 28 | |
| 6 | Conwy | Wales | 17 | |
| 7 | Worcestershire | England | 13 | |
| 8 | Scottish Borders | Scotland | 11 | |
| 9 | Surrey | England | 10 | |
| 10 | Herefordshire, County of | England | 10 | |
| 11 | Dumfries and Galloway | Scotland | 9 | |
| 12 | Nottinghamshire | England | 7 | |
| 13 | Cumbria | England | 6 | |
| 14 | Ceredigion | Wales | 6 | |
| 15 | Norfolk | England | 4 |
49 England65 Scotland257 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 38 counties in all.
About this species
- Records since 2000
- 409
- Peak month
- April
- Counties with records
- 38
- Group
- Mayflies
- NBN Atlas records since 2000
- 409
- Most recorded in
- Gwynedd, Isle of Anglesey
- Conservation designations
- GB Red List (2001 IUCN criteria)
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Ephemeroptera
- Family
- Caenidae
- Genus
- Caenis
- Name with authority
- Caenis luctuosa (Burmeister, 1839)
- Described
- 1839
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q2932832 · GBIF 5757622