Wingspan 5 to 7 mm. There are other similar species and gen det may be needed to confirm identification of adult moths. The larval mines on Alder are much easier to identify.
Adults are very difficult to determine. Leafmine occurs on Alder http://www.leafmines.co.uk/html/Lepidoptera/H.resplendella.htm
Often fly in sunshine around Alder branches.
The adult moths fly in a single generation from late May to July.
The eggs of this species are laid on Alder (Alnus) leaves, usually in the midrib the larva then mines the leaf. When fully fed, the larva cuts out an oval case, in which it descends to the ground and pupates. The larval mines are more easily identified than he adult moths.
The moth is widespread and locally common throughout England, Wales and parts of Southern Scotland. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as local.
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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