St Mark’s Fly
Bibio marci
Description
Over all length 12 - 14mm. Black-bodied, hairy fly that flies clumsily with legs dangling, the males often in a small cloud above a hedgerow . The male has a dark leading edge to the wing while the females wings are tinted dark.
Habitat
Hedgerows and grasslands where there are damp areas for the larvae to develop in.
Status and distribution
A very common and well distributed species. Regular at the reserve in good numbers.
Best time to see
Late April to early June.