Rannoch Sprawler Brachionycha nubeculosa - 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

73.066 BF2228

Rannoch Sprawler Brachionycha nubeculosa

(Esper, 1785)

[Synonyms: Brachionycha nubeculosa]
Wingspan 48-60 mm.

Found locally in Perthshire and Inverness-shire in the Scottish highlands, unlike its relative The Sprawler, it is an early spring species, flying in March and April.

Its favoured habitat is ancient birch (Betula) woodland, where it is possible to locate the adults on the tree trunks during the day. The normal flight time is at night, when it will come to light.

The caterpillar is bright green with white speckles and yellow markings, and feeds on birch (Betula).
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