From The Raptor:
It is quite a common butterfly in this area of Scotland. Although their numbers are falling they are not yet in any danger. The main cause for their decline is the larva of a small fly which lays its eggs on the common nettle, which is the main food source for the Small Tortoiseshell which also lays its eggs on the nettle. The fly larva is eaten by the butterfly larva, and then the gore begins as the eaten larva then begins to eat the butterfly larva from the inside (lovely).
Anyway I wish this wee fella all the best.
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