When it is recorded
Jan3
Feb2
Mar11
Apr36
May60
Jun7
Jul7
Aug5
Sep14
Oct1
Nov0
Dec0
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Dorset | England | 67 | |
| 2 | Gwynedd | Wales | 29 | |
| 3 | Highland | Scotland | 10 | |
| 4 | Ceredigion | Wales | 9 | |
| 5 | Perth and Kinross | Scotland | 8 | |
| 6 | Conwy | Wales | 7 | |
| 7 | Powys | Wales | 5 | |
| 8 | North Yorkshire | England | 2 | |
| 9 | Argyll and Bute | Scotland | 2 | |
| 10 | Pembrokeshire | Wales | 2 | |
| 11 | Aberdeenshire | Scotland | 2 | |
| 12 | East Ayrshire | Scotland | 1 | |
| 13 | Torbay | England | 1 |
2 England4 Scotland52 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 13 counties in all.
About this species
- Records since 2000
- 146
- Peak month
- May
- Counties with records
- 13
- Group
- True flies
- NBN Atlas records since 2000
- 58
- Most recorded in
- Dorset
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Diptera
- Family
- Chironomidae
- Genus
- Heterotrissocladius
- Name with authority
- Heterotrissocladius marcidus (Walker, 1856)
- Described
- 1856
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q13849663 · GBIF 1446335