Eriophyes laevis
Alternative names
Eriophyes inangulis
Description
The mite Eriophyes laevis causes galls to form on the leaves of Alder (Alnus glutinosa). The galls start off shiny yellow, becoming green then red, purplish or brown. They are scattered over the leaf, often numerous, and with a small opening below. The gall is seen more often than the mite.
Habitat
On Alder
When to see it
The gall can be seen at any time that Alder is in leaf, best time is around August and September.
UK Status
Widespread and fairly frequent in Britain.
VC55 Status
Fairly frequent in Leicestershire and Rutland.
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015