Larval Food:
Adult Food:
Wingspan:
Habitat:
Flies/Found:
Eggs:
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Common Dog-violet, Hairy Violet and Marsh Violet.
Adults feed primarily on the nectar of Thistles and Knapweeds.
58 - 68 mm.
Pastures and flowery banks, and nearby areas where the preferred foodplants for the larvae, grow.
Adults generally emerge in the middle of June, reaching a peak in early July. There is one generation each year.
Eggs are laid either directly on the foodplant, or on a suitable
platform nearby, such as a twig, grass stem or dead leaf. Eggs are
yellow when first laid but turn a dark purple after a few days and,
eventually, a dark grey just before the larva emerges. This stage lasts
between 2 and 3 weeks.
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