The Fern Horisme tersata: 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

70.127 BF1782
The Fern Horisme tersata

([Denis & Schiffermüller], 1775)

Wingspan 31-36 mm.

Distributed mainly in the southern half of Britain, occupying hedgerows and open woodland on calcareous soils, this species always shows subtle and indistinct markings.

The flight period is June and July, and the moth can be attracted to light.

The caterpillar is pale brown marked with darker blotches along the back, and feeds on traveller's joy (Clematis vitalba).
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