Rabdophaga pierreana


Rabdophaga pierreana is a gall midge which forms galls on the young shoots of willow. It was first described by Jean-Jacques Kieffer in 1909.

Description

The gall is an ovoid swelling on a young shoot, with one large chamber containing up to twenty-two red larvae. In Britain the gall is found on eared willow, elsewhere it has been found on S. caprea, S. cinerea and S. myrsinfolia. The similar looking gall, R. dubiosa has many individual chambers with a yellow or light orange larvae in each.

Distribution

Has been recorded from Belgium, France, Germany, Great Britain and Poland.