Aculus gemmarum

Aculus gemmarum is a species of mite which causes galls on the buds of willows. It was first described by Alfred Nalepa in 1892.

Description

The buds are enlarged and hairy, and the mites are found between the small distorted leaves on Salix aegyptiac, S. aurita, S. babylonica, S. caprea, S. cinerea, S. elaeagnos, S. matsudana, S. repens.

Distribution

Aculus gemmarum has been found in Finland, France, Germany, Great Britain, Italy and Sweden.