Setodes argentipunctellus

Key Details

Taxonomic Groups: Invertebrate > insect - caddis fly (Trichoptera) > Caddisfly
Red List Status: Near Threatened (Not Relevant) [NT(nr)]
D5 Status: Included in the baseline Red List Index for England (Wilkins, Wilson & Brown, 2022)
Section 41 Status: (not listed)
Taxa Included Synonym: (none)
UKSI Recommended Name: Setodes argentipunctellus
UKSI Recommended Authority: McLachlan, 1877
UKSI Recommended Qualifier: (none specified)
Red List Citation: Wallace, 2016
Notes on taxonomy/listing: (none)

Criteria

Question 1: Does species need conservation or recovery in England?
Response: Yes
Justification: It seems restricted to two lakes in the Lake District and the current status in rives in south west England is not known.
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: Yes
Justification: Although the species seems to be doing well at two sites the proposed actions are to fill in gaps in our knowledge. Gaps in our knowledge of the biology of this species that makes it vulnerable.
Question 3: At a landscape scale, would the species benefit from untargeted habitat management to increase habitat mosaics, structural diversity, or particular successional stages?
Response: No
Justification: Upland lakes do not seem to be a habitat considered by this question

Species Assessment

Current step on the Species Recovery Curve (SRC): 2. Biological status assessment exists
Recovery potential/expectation: Low - Relict or natural rarity
National Monitoring Resource: Opportunistic - insufficient
Species Comments: The general thrust to improve water quality in the lakes and maintain their structural and biological diversity should help this species. The populations in Windermere and Coniston seem large but the lack of knowledge of its micro distribution would seem desirable to check future status.

Key Actions

Key Action 1

Proposed Action: Undertake basic shore surveys around Windermere and Coniston to locate best sites to use for a regular monitoring to assess population health. Measuring water depth Is also important as the sites may suffer increasingly in the future from droughts and emergency water abstraction.

Action targets: 3. National Monitoring Plan agreed and implemented

Action type: Targeted monitoring

Duration: >10 years

Scale of Implementation: ≤ 5 sites

High priority sites: Lakes of Windermere and Coniston

Comments: Basic biological information about this species is lacking.

Key Action 2

Proposed Action: Undertake focussed survey of old sites in the River Torridge to see if it is still present and the habitat.

Action targets: 4. Autecology and pressures understood

Action type: Status survey/review

Duration: 2 years

Scale of Implementation: ≤ 5 sites

High priority sites: River Torridge

Comments: Collaboration with the EA by for example the EA altering its water quality monitoring dates might cover this action

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Acknowledgment:
Data used on this website are adapted from Threatened species recovery actions 2025 baseline (JP065): Technical report and spreadsheet user guide (Natural England, 2025). Available here.