? on Ulmus spec.

Acari, Eriophyidae

on Ulmus

Ulmus leaves, galled by unknown Eriophyid

Ulmus spec., Wouwsche Plantage

Ulmus leaves, galled by unknown Eriophyid

a strongly and a weakly galled leaf

Ulmus leaves, galled by unknown Eriophyid

strongly galled leaves are only 2-3 cm long

Ulmus leaf, galled by unknown Eriophyid - detail

detail of the leaf between the main galled veins (underside)

unknown Eriophyid, galling Ulmus leaves

a mite

references

Houard (1908).

18/07/2014

pub 18.vii.2014 ยท mod 23.vii.2017