Ashworth's Rustic Xestia ashworthii: 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

73.362 BF2129
Ashworth's Rustic Xestia ashworthii

(Doubleday, 1855)

Wingspan 35-40 mm.

A very localised species, occurring only in the mountainous regions of North Wales, where it inhabits slate and limestone hills.

The single generation flies between June and August, when it comes to light and sugar.

The larvae feed on a variety of low plants including common rock-rose (Helianthemum chamaecistus), heather (Calluna) and foxglove (Digitalis purpurea). On sunny days the larvae can sometimes be found basking on the foodplants or on nearby rocks.
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