Eriocrania unimaculella - Distribution map

Please note that the NBN Gateway map service has been terminated as of 1 April 2017.

As soon as a replacement map service is available, distribution maps will hopefully appear here again.

In the meantime, you can get some idea of distribution from the NBN Atlas website.

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2.003 BF8

Eriocrania unimaculella

(Zetterstedt, 1839)

Wingspan c. 10mm.

This species has a silvery, rather than golden, tornal spot which can help distinguish it from similar species; however the adults can be very difficult to tell apart and it is best to rear from larvae or to refer to genitalia for identification.

Well distributed and relatively common over much of Britain, the adults fly in sunshine during March and April

The larvae feed on birch Betula, causing a blotch at the edge of the leaf. The larva when fully developed has a dark brown head capsule, the base of which shows as two dark spots. Mines can be found during late April to late May.

See also:
Leafmine (British Leaf Mining Fauna)
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