May Highflyer Hydriomena impluviata - 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

70.075 BF1778

May Highflyer Hydriomena impluviata

([Denis & Schiffermüller], 1775)

Wingspan 30-34 mm.

Quite variable across its range, the northern populations often include a number of dark grey, melanic specimens.

It is found throughout most of Britain, though is not especially common, and flies between May and July.

Alder (Alnus glutinosa) is the larval foodplant, the caterpillars spinning together the leaves during the autumn.
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