Streak (Chesias legatella)
Key Details
| Taxonomic Groups: | Invertebrate > insect - moth > Moth |
| Red List Status: | (Not Relevant) [(not listed)(nr)] |
| D5 Status: | |
| Section 41 Status: | (not listed) |
| Taxa Included Synonym: | (none) |
| UKSI Recommended Name: | Chesias legatella |
| UKSI Recommended Authority: | ([Denis & Schiffermüller], 1775) |
| UKSI Recommended Qualifier: | (none specified) |
| Red List Citation: | (not listed) |
| Notes on taxonomy/listing: | (none) |
Criteria
| Question 1: | Does species need conservation or recovery in England? |
| Response: | Yes |
| Justification: | GB Red List (Fox et al. 2019): LC. GB long term distribution decline of 43% and non-significant abundance decline of 43%. Localised species dependent on a single host plant. |
| Question 2: | Does recovery/ conservation depend on species-specific actions? |
| Response: | Yes |
| Justification: | Threatened by removal of the host plant Broom from key areas within the moth's distribution. |
| 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: | The host plant Broom is a pioneer species and benefits from periodic habitat management, e.g. coppice management in woodlands. |
Species Assessment
| Current step on the Species Recovery Curve (SRC): | 7. Best approach adopted at appropriate scales |
| Recovery potential/expectation: | Medium-high |
| National Monitoring Resource: | Combination - sufficient |
| Species Comments: |
Key Actions
Key Action 1
Proposed Action: Broom is often seen as a 'weed' and removed from recently-managed areas in woodland and on heathlands. Raise awareness of the importance of Broom for several declining moths, and ensure it is retained at sites within the moth's known distribution.
Action targets: 7. Best approach adopted at appropriate scales
Action type: Education/awareness raising
Duration: 3-5 years
Scale of Implementation: National
High priority sites:
Comments:
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.