Phyllocoptes populi


Phyllocoptes populi is a mite that causes galls to form on the leaves of Aspen and very occasionally on other members of the Poplar family. The gall has a distinctive yellowish bulge on upperside; (filled with hairs that the mites live in between). The hairs below are pale at first, reddish or brown later, each broadened at tip. The galls are seen more often than the mite.

Identification difficulty

Adult Gall


On the host plants.

When to see it

Galls in late spring and summer.

UK Status

Fairly common and widespread in Britain.

VC55 Status

Fairly common in Leicestershire and Rutland.

Leicestershire & Rutland Map


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

UK Map