Andricus callidoma


The larvae of the gall wasp Andricus callidoma cause galls to form on Oak. The gall emerges from an unopened bud. The stalk is 3 to 5 mm long and can be much longer, the gall itself is approximately 2 x 4 mm with a pointed tip.

Identification difficulty

Adult Gall


Where Oak (the host species) is present.

When to see it

May to September.

UK Status

Uncommon and little recorded in Britain.

VC55 Status

Uncommon in Leicestershire and Rutland.

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Leicestershire & Rutland Map


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

UK Map