Cherry Gall Wasp - Cynips quercusfolii

Description

Cynips quercusfolii is a small black gall wasp. Its larvae cause cherry galls to form on the leaves of some species of oak. The galls are succulent, 15 to 25 mm in diameter, smoother on Quercus robur or more warty on Quercus petraea; yellow-green suffused with pink or red, and later dark red then brown with a thick walled chamber. The gall is seen more often than the gall wasp.

Identification difficulty

Adult Gall

Habitat

Around oaks.

When to see it

Galls appear towards autumn.

Life History

Its larvae cause cherry galls to form on the leaves of some species of oak (see above).

UK Status

Widespread in Britain.

VC55 Status

Status in Leicestershire and Rutland not known.

be our species champion

Leicestershire & Rutland Map

MAP KEY:

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

UK Map