When it is recorded
Jan8
Feb10
Mar37
Apr63
May33
Jun25
Jul20
Aug14
Sep38
Oct36
Nov5
Dec24
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Carmarthenshire | Wales | 37 | |
| 2 | Devon | England | 28 | |
| 3 | Pembrokeshire | Wales | 16 | |
| 4 | Ceredigion | Wales | 13 | |
| 5 | Gwynedd | Wales | 12 | |
| 6 | Powys | Wales | 12 | |
| 7 | Monmouthshire | Wales | 10 | |
| 8 | Argyll and Bute | Scotland | 9 | |
| 9 | Swansea | Wales | 9 | |
| 10 | Cornwall | England | 8 | |
| 11 | North Yorkshire | England | 6 | |
| 12 | Worcestershire | England | 4 | |
| 13 | Stirling | Scotland | 4 | |
| 14 | Denbighshire | Wales | 4 | |
| 15 | Cambridgeshire | England | 3 |
44 England13 Scotland209 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 20 counties in all.
About this species
- Records since 2000
- 313
- Peak month
- April
- Counties with records
- 20
- Group
- True flies
- NBN Atlas records since 2000
- 269
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Diptera
- Family
- Chironomidae
- Genus
- Brillia
- Name with authority
- Brillia bifida (Kieffer, 1909)
- Described
- 1909
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q14426481 · GBIF 4519771