Pontania triandrae

Pontania triandrae is a sawfly galling Salix triandra. The gall is bean-shaped, starting off green then maturing red. It is smooth and thick-walled, protruding through both the upper and lower leaf surface.

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

The galls are only found on Salix triandra (Almond Willow).

May - September (gall)

Rare but probably under-recorded.

Unknown