Wingspan 9 to 10 mm. All the Parornix species have a distinctive resting posture with the front part of the body raised on the forelegs, and a slightly upcurved rear.
Leafmine occurs on Hazel http://www.leafmines.co.uk/html/Lepidoptera/P.devoniella1.htm
Wherever Hazel is plentiful.
The moths fly in two generations, firstly in May and again in August.
The larvae of this species feed on Hazel (Corylus avellana), initially creating a squarish blotch on the underside, and then folding over the edge of the same, or a nearby leaf.
The species is relatively common wherever its foodplant is found. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.
It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).
Leicestershire & Rutland Map
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