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 Nicholls
Watermead Country Park
27 September 2013
on Alder
Graham Calow
Witherley
26 September 2015
Graham Calow
Witherley
26 September 2015
Graham Calow
Witherley
26 September 2015
David Nicholls
Thornton Reservoir
05 October 2019
Leicestershire & Rutland Map
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UK Map
David Nicholls
Watermead Country Park
27 September 2013
David Nicholls
Ratby
05 June 2014
on Alder
