Radford's Flame Shoulder Ochropleura leucogaster
Wingspan 34-37 mm.
Rather similar to the Flame Shoulder (O. plecta), but has longer forewings with smaller stigmata and whiter hindwings.
There have only been a handful of records in Britain, mostly in the south and south-west of England, and mostly in October, though the moth flies earlier on the continent.
The larvae feed on low plants including trefoils (Lotus spp.).