Cynips longiventris

The asexual generation of Cynips longiventris cause attractive pea shaped striped galls on the leaves of Oak – usually on the underside, but can be on the upper surface.

Gall

When recording the gall please provide a photograph and state the host species.

Galls are found on Oak.

When Oak is in leaf – summer to autumn.

The sexual generation produces oval or pear-shaped, hairy galls of ~2 mm length on resting buds.

Widespread, but occasional in Britain.

Status in Leicestershire and Rutland not known.