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Species · Mayflies

Ecdyonurus venosus

593Records since 2000
AprilPeak month
32Counties with records

When it is recorded

Jan0
Feb0
Mar66
Apr141
May89
Jun4
Jul23
Aug20
Sep96
Oct89
Nov60
Dec2

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1Gwynedd Wales171
2Conwy Wales98
3Powys Wales49
4Aberdeenshire Scotland49
5Denbighshire Wales39
6Highland Scotland27
7Argyll and Bute Scotland18
8Ceredigion Wales16
9North Ayrshire Scotland15
10North Yorkshire England13
11Isle of Anglesey Wales13
12Moray Scotland11
13Worcestershire England8
14Perth and Kinross Scotland6
15Carmarthenshire Wales6
11 England146 Scotland400 Wales3 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 32 counties in all.

About this species

Records since 2000
593
Peak month
April
Counties with records
32
Group
Mayflies
NBN Atlas records since 2000
574
Most recorded in
Gwynedd, Conwy
Conservation designations
GB Red List (2001 IUCN criteria)
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Ephemeroptera
Family
Heptageniidae
Genus
Ecdyonurus
Name with authority
Ecdyonurus venosus (Fabricius, 1775)
Described
1775
Contributing datasets
12

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q3046927 · GBIF 4481461