When it is recorded
Jan0
Feb0
Mar0
Apr0
May22
Jun108
Jul112
Aug79
Sep4
Oct0
Nov0
Dec0
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Devon | England | 62 | |
| 2 | Norfolk | England | 54 | |
| 3 | Gwynedd | Wales | 29 | |
| 4 | Suffolk | England | 24 | |
| 5 | Cambridgeshire | England | 18 | |
| 6 | Surrey | England | 16 | |
| 7 | Essex | England | 13 | |
| 8 | Cornwall | England | 10 | |
| 9 | Swansea | Wales | 9 | |
| 10 | Highland | Scotland | 7 | |
| 11 | East Riding of Yorkshire | England | 7 | |
| 12 | Worcestershire | England | 6 | |
| 13 | Na h-Eileanan Siar | Scotland | 4 | |
| 14 | Redcar and Cleveland | England | 4 | |
| 15 | Oxfordshire | England | 3 |
218 England17 Scotland54 Wales1 Northern Ireland
Records per county (GADM level 2) and per nation; one record can count towards several areas. 31 counties in all.
About this species
- Records since 2000
- 350
- Peak month
- July
- Counties with records
- 31
- Group
- True flies
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Diptera
- Family
- Therevidae
- Genus
- Thereva
- Name with authority
- Thereva unica (Harris, 1779)
- Described
- 1779
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q14415712 · GBIF 1565399