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Species · Caddisflies

Hydropsyche instabilis

4,225Records since 2000
AprilPeak month
81Counties with records

When it is recorded

Jan5
Feb20
Mar220
Apr697
May631
Jun297
Jul391
Aug214
Sep217
Oct265
Nov91
Dec9

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

Where it is recorded

#CountyNationRecordsShare
1Cumbria England328
2Powys Wales241
3North Yorkshire England227
4Worcestershire England162
5Denbighshire Wales123
6Gwynedd Wales102
7Gloucestershire England95
8Calderdale England88
9Devon England63
10Somerset England58
11Ceredigion Wales56
12Monmouthshire Wales56
13Highland Scotland47
14Wrexham Wales46
15Herefordshire, County of England42
3,048 England244 Scotland898 Wales7 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 81 counties in all.

About this species

Records since 2000
4,225
Peak month
April
Counties with records
81
Group
Caddisflies
NBN Atlas records since 2000
4,206
Conservation designations
GB Red List (2001 IUCN criteria)
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Trichoptera
Family
Hydropsychidae
Genus
Hydropsyche
Name with authority
Hydropsyche instabilis (Curtis, 1834)
Described
1834
Contributing datasets
16

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q1810118 · GBIF 5054177