Teloleuca pellucens

Key Details

Taxonomic Groups: Invertebrate > insect - true bug (Hemiptera) > Water bug
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: Teloleuca pellucens
UKSI Recommended Authority: (Fabricius, 1779)
UKSI Recommended Qualifier: (none specified)
Red List Citation: Cook, 2015
Notes on taxonomy/listing: (none)

Criteria

Question 1: Does species need conservation or recovery in England?
Response: Yes
Justification: A northerly and almost exclusively upland species which is probably genuinely very rare in England. It has not been recorded at its only lowland site, Thorne Moors in Yorkshire since 2001, or at sites in the Yorkshire Pennines since before 1990.
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: Yes
Justification: A poorly known and probably under recorded species which is possibly extinct in England.
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: This species would not benefit from untargeted management

Species Assessment

Current step on the Species Recovery Curve (SRC): 4. Autecology and pressures understood
Recovery potential/expectation: Low - Climate change
National Monitoring Resource: Opportunistic - insufficient
Species Comments:

Key Actions

Key Action 1

Proposed Action: Resurvey and monitor all known modern locations for the species, including Thorne Moor.

Action targets: 3. National Monitoring Plan agreed and implemented

Action type: Status survey/review

Duration: 2 years

Scale of Implementation: ≤ 5 sites

High priority sites: Thorne Moor

Comments:

Key Action 2

Proposed Action: Would appear that autecology is less understood than indicated by Species assessment, given that records are from such a wide range of upland habitats. Action 2 could include better description of habitat used and analysis of threats from climate change.

Action targets: 4. Autecology and pressures understood

Action type: Scientific research

Duration: 2 years

Scale of Implementation: ≤ 5 sites

High priority sites: Thorne Moor

Comments:

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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.