Season (Adult / Immature):
National Status: Nb
Local Status: Scarce and thinly distributed resident.
Local Record: Grade 3 See here for explanation
Flight time: May-Jun.
Foodplant: Wild thyme.
|Year first recorded||1905||2000||1905|
|Year last recorded||2011||2011||2011|
|Number of records||151||2||306|
|Number of individuals||1495||2||2994|
For the region, we have a total of 306 records from 90 sites. Earliest record on file is in 1905.
For further information refer UK Moths.
Davey, P., 2009: A local species restricted to southern Britain and found most frequently in south-east England, the larva feeding on wild thyme (Thymus polytrichus). In Dorset, the moth is common very locally in unimproved short-turf grassland habitat on chalky soil inland, along the Purbeck coast and on Portland. Colonies have declined since the Second World War due to the loss of unimproved short-turf calcareous grassland following changes in farming methods plus the crash in rabbit numbers from the 1950s due to myxomatosis and consequent reduction in close-cropping. It is recommended that this species be included in habitat management plans for unimproved grassland sites on chalky soil.