Ectoedemia occultella: 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.

View the NBN Atlas Map

4.099 BF34
Ectoedemia occultella

(Linnaeus, 1767)

[Synonyms: argentipedella mediofasciella]
Wingspan 5-7 mm.

Distributed commonly throughout mainland Britain, it is however local in Ireland.

The larvae mine the leaves of birch (Betula), creating a distinctive mine which begins as a dark circular blotch, and is then extended into a larger pale blotch with a darker central circle. Sometimes several mines are found in one leaf.

The adults are quite large for a Nepticulid, and have blackish forewings with a hint of violet, and contrasting whitish fascia and eye-caps. The males have black heads, those of the female orange or yellow.

There is a single generation, with adults at large from late May to July, and mines in evidence between August and October.
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