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.
Identification difficulty
Adult 
Gall 
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.
David NichollsWatermead Country Park27 September 2013on Alder
Graham CalowWitherley26 September 2015
Graham CalowWitherley26 September 2015
Graham CalowWitherley26 September 2015
David NichollsThornton Reservoir05 October 2019
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
UK Map
David NichollsWatermead Country Park27 September 2013
David NichollsRatby05 June 2014on Alder
