Horehound Longhorn

I think this may be one of the prettiest moths I've ever photographed, although it's only a about 15mm in length. The Horehound Longhorn Nemophora fasciella is a scarce species, distributed mainly in the south and south-east of England, also ranging northwards into south Yorkshire and Lancashire. Normally fying in July, the adults have bronzy forewings with a central purplish fascia, and the males have long silvery-white antennae, black at the base. This is a female and she has shorter, blackish antennae with white at the tips. The larval foodplant is black horehound Ballota nigra, the larva feeding at first on the seeds and then later in a case made from fragments of the foodplant.