irregular, but sometimes common migrant, which can establish itself in
favourable years. It can not survive severe winters.
larvae live on Trifolium spp., Polygonum
aviculare, and probably on several grasses. They are very
lively. Pupation in a tough cocoon amongst the leaves of the foodplant
or attached to a stone. The pupa hibernates.
immigrants arrive from May till August and they can produce offspring
of which the adults fly from August till late October. They come to light.
Namur, Lavaux St.-Anne, 24 September 2006.
(Photo © Chris Steeman)