Frosted Orange Gortyna flavago
([Denis & Schiffermüller], 1775)
Wingspan 35-40 mm.
An attractive moth, which occurs fairly commonly throughout England and Wales; less commonly in Ireland and Scotland.
Its favoured haunts are woodland, waste ground and marshes, where it can be found on the wing from August to October.
The larvae feed internally in the wide stems of such plants as thistle (Carduus spp) and burdock (Arctium), also pupating within the stem.