When it is recorded
Jan0
Feb0
Mar98
Apr321
May168
Jun36
Jul34
Aug28
Sep223
Oct186
Nov81
Dec9
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Monmouthshire | Wales | 146 | |
| 2 | Powys | Wales | 133 | |
| 3 | Gwynedd | Wales | 107 | |
| 4 | Dumfries and Galloway | Scotland | 107 | |
| 5 | Carmarthenshire | Wales | 91 | |
| 6 | Highland | Scotland | 76 | |
| 7 | Pembrokeshire | Wales | 76 | |
| 8 | Worcestershire | England | 56 | |
| 9 | Ceredigion | Wales | 42 | |
| 10 | Herefordshire, County of | England | 38 | |
| 11 | Scottish Borders | Scotland | 33 | |
| 12 | South Ayrshire | Scotland | 29 | |
| 13 | Perth and Kinross | Scotland | 28 | |
| 14 | Denbighshire | Wales | 25 | |
| 15 | Conwy | Wales | 22 |
126 England332 Scotland705 Wales2 Northern Ireland
Records per county (GADM level 2) and per nation; one record can count towards several areas. 39 counties in all.
About this species
- Records since 2000
- 1,186
- Peak month
- April
- Counties with records
- 39
- Scientific name
- Heptagenia sulphurea
- Group
- Mayflies
- NBN Atlas records since 2000
- 1,170
- Most recorded in
- Monmouthshire, Powys, Gwynedd, Dumfries and Galloway, Carmarthenshire, Highland, Pembrokeshire, Worcestershire
- Conservation designations
- GB Red List (2001 IUCN criteria)
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Ephemeroptera
- Family
- Heptageniidae
- Genus
- Heptagenia
- Name with authority
- Heptagenia sulphurea (Müller, 1776)
- Described
- 1776
- Contributing datasets
- 14
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q6860519 · GBIF 4481425