They prefer open sunny woodland clearings/rides where there is an abundance of Wood Spurge for both the larva and adults to feed from. The adults are quite easy to find or easily disturbed on warm overcast and sunny days alike, from my own experiences and observations.
The small Moth is a light brown in colour [fawny] with an opened wingspan of about 18mm.
|Drab Looper Moth on Wood Spurge|
|A Drab Looper Moth and a small Fly the size of a Common House fly |
to indicate how small the Moth actually is.