Willow Gall Sawfly - Pontania pedunculi

Pontania pedunculi is a sawfly that causes a gall on certain species of Willow: Salix capraea (Goat Willow), Salix cinerea (Grey Willow) and Salix aurita (Eared Willow). The gall is commonly seen but the adult sawfly rarely so. The gall is generally pea-shaped, starting green but becoming red as it matures. It is hairy and only found on the underside of the leaf.

Adult Gall

• gall found on Salix capraea (Goat Willow), Salix cinerea (Grey Willow) or Salix aurita (Eared Willow)
• gall is pea-shaped and hairy
• gall is on the underside of the leaf

If a gall, it is essential to say which tree species it was on.

Hedgerows and damp places where the host Willow trees are present.

Adult May - August

Fairly common in England.

Fairly common in Leicestershire and Rutland.