Pea Gall Sawfly

Pea Gall Sawfly - Euura viminalis

Alternative names
Pontania viminalis, Eupontania gallarum and Eupontania viminalis
Description

The sawfly Euura viminalis causes galls to form on Purple Willow (Salix purpurea) and Osier (Salix viminalis).  The gall in on the leaf underside, with brownish warts, and is not hairy. 

Similar Species

Euura bridgmanii forms similar galls on Sallows (Salix caprea, Salix cinerea and Salix aurita)

Identification difficulty

Gall  Adult

Recording advice

The host species must be identified correctly, and a photo of the host plant leaves provided with the gall photo

Habitat

Anywhere that the host plants Purple Willow and Osier are found.

When to see it

There are two broods with adults flying May/June and July/August.

Life History

The pea shaped gall is formed on the midrib on the underside of the leaf and often reddens.

UK Status

Occasional in Britain

VC55 Status

Uncommon in Leicestershire and Rutland.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Additional images

No additional images available for this species.

All NatureSpot records