Cherry Gall Wasp - Cynips quercusfolii
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.
Galls appear towards autumn.
Its larvae cause cherry galls to form on the leaves of some species of oak (see above).
Widespread in Britain.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015