Aceria brachytarsus

Description

Small pouches on the leaves of walnuts, rounded on top and with a conical projection and opening below

Identification difficulty

Recording advice

Photograph both upper and lower leaf surface; state host plant in your comments

Habitat

Walnut trees

UK Status

Rare - first discovered in Cambridge in 2021

VC55 Status

The Leicester record of 2026 is the first for VC55

Peter Smith
Leicester, Wash Brook Nature Reserve
22 June 2026
Leaf edge gall: side view
on Walnut
Peter Smith
Leicester, Wash Brook Nature Reserve
20 June 2026
Upper surface
Peter Smith
Leicester, Wash Brook Nature Reserve
20 June 2026
Lower surface
Peter Smith
Leicester, Wash Brook Nature Reserve
22 June 2026
Leaf edge gall: upper surface
Peter Smith
Leicester, Wash Brook Nature Reserve
22 June 2026
Mid-leaf gall: upper surface
Peter Smith
Leicester, Wash Brook Nature Reserve
22 June 2026
Mid-leaf gall: lower surface