Aulacochthebius exaratus

Key Details

Taxonomic Groups: Invertebrate > insect - beetle (Coleoptera) > Water beetle
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: Ochthebius exaratus
UKSI Recommended Name: Aulacochthebius exaratus
UKSI Recommended Authority: (Mulsant, 1844)
UKSI Recommended Qualifier: (none specified)
Red List Citation: Foster, 2010
Notes on taxonomy/listing: (none)

Criteria

Question 1: Does species need conservation or recovery in England?
Response: Yes
Justification: There has probably been some genuine contraction in range but this tiny Hydraenid is naturally confined to a small area of south-east England.
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: No
Justification: Ochthebius exaratus (new name) is likely to be vulnerable to generic rather than specific threats to coastal habitats within its range. As with Augyles maritimus, at-risk water beetles of coastal habitats warrant attention but are more likely to benefit from generic measures rather than species-specific interventions.
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: N/A
Justification:

Species Assessment

Not relevant as no Key Actions defined.

Key Actions

No Key Actions Defined

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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.