Lundy Cabbage Flea Beetle (Psylliodes luridipennis)

Key Details

Taxonomic Groups: Invertebrate > insect - beetle (Coleoptera) > Leaf beetle or ally
Red List Status: Critically Endangered (Not Relevant) [CR(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: Psylliodes luridipennis
UKSI Recommended Authority: Kutschera, 1864
UKSI Recommended Qualifier: (none specified)
Red List Citation: Hubble, 2014
Notes on taxonomy/listing: (none)

Criteria

Question 1: Does species need conservation or recovery in England?
Response: Yes
Justification: Endemic with a single population in one location (Lundy), reliant on its sole food-plant Lundy Cabbage which declined, but now appears to be stable
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: Yes
Justification: Lack of evidence
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): 5. Remedial action identified
Recovery potential/expectation: Medium-high
National Monitoring Resource: Structured - sufficient
Species Comments: A flea beetle endemic to Lundy. Can be abundant on its host plant of Lundy Cabbage.

Key Actions

Key Action 1

Proposed Action: Protect hostplants from grazing.

Action targets: 6. Recovery solutions trialled

Action type: Special (in situ) measure

Duration: >10 years

Scale of Implementation: 1 site

High priority sites: Lundy

Comments: Host plants are vulnerable to grazing pressure and need long-term protection or progressive removal of grazing animals from the island.

Key Action 2

Proposed Action: Protect key areas (via fencing & barriers) from over-disturbance from tourists.

Action targets: 6. Recovery solutions trialled

Action type: Special (in situ) measure

Duration: >10 years

Scale of Implementation: 1 site

High priority sites:

Comments: Fences and barriers to protect important areas of the beetle's hostplant.

Key Action 3

Proposed Action: Raise awareness among visitors to the island

Action targets: 6. Recovery solutions trialled

Action type: Education/awareness raising

Duration: >10 years

Scale of Implementation: 1 site

High priority sites: Lundy

Comments: Interpretation boards and other sources of information aimed at visitors to the island to prevent erosion and trampling of hostplants

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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.