Longitarsus longiseta
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: | Longitarsus longiseta |
| UKSI Recommended Authority: | Weise, 1889 |
| 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: | Possibly extinct |
| Question 2: | Does recovery/ conservation depend on species-specific actions? |
| Response: | Yes |
| Justification: | Lack of evidence, although few verified sites and possibly extinct |
| 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: | Yes |
| Justification: | Creation of habitat mosaics would likely benefit this species if it is still extant. |
Species Assessment
| Current step on the Species Recovery Curve (SRC): | 2. Biological status assessment exists |
| Recovery potential/expectation: | Unknown |
| National Monitoring Resource: | Opportunistic - insufficient |
| Species Comments: | Small and very easily overlooked. Very similar to other species in the genus and possibly extinct here. |
Key Actions
Key Action 1
Proposed Action: Targeted survey of sites with potentially suitable habitat
Action targets: 3. National Monitoring Plan agreed and implemented
Action type: Status survey/review
Duration: 2 years
Scale of Implementation: ≤ 20 sites
High priority sites: Sites with potentially suitable habitat
Comments: Small and easily overlooked, so possibly hanging on in as yet unknown locations. Focus on those areas with potentially suitable habitat that are within the bounds of the known historical range. Perhaps make use of AI algorithms to define areas of potential occupation, but only when microhabitat preferences have been defined.
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.