Willow Gall Sawfly - Pontania pedunculi

Alternative names
Eupontania pedunculi
Description

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.

Identification difficulty

Adult Gall

ID guidance
  • 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
Recording advice

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

Habitat

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

When to see it

Adult May - August

UK Status

Fairly common in England.

VC55 Status

Fairly common in Leicestershire and Rutland.

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Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map