Purple Hairstreak (Favonius quercus)

Underside. The orange spot allows it to be distinguished from other hairstreaks.
Underside. The orange spot allows it to be distinguished from other hairstreaks.
Underside.
Underside.
Larva
Larva
Larva
Larva
Pupa, normally hidden in ground litter
Pupa, normally hidden in ground litter
Pupa
Pupa
 
Information

NERC Act S41: Not listed
Local status: Common but under-recorded. (Map probably doesn't reflect complete distribution).
Potentially found anywhere there are mature Oak trees.
Size: Small.
Larval foodplant: Oak.
No. of broods: One.
Flight time(s): Late June to late August
Winter: Egg.
Habits: Spend most of their lives around the tops of mature trees, especially Oak and Ash, where they flit around the canopy, especially of an evening, when they can be active up to about 8pm. When viewed through binoculars they may been seen sunbathing with wings open, displaying the purple upper surfaces. (Males are completely purple on upper surfaces, females partly). As they pupate in ground litter the best opportunity to view at close quarters may be when they are emerging below oaks in early July.
Habitats: Mature Oak woodland, and clusters of large Oaks. Also visit Ash and Elm, looking for honeydew to feed upon.
Distribution:

Normalized Weekly Abundance


Flight time graph


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Number of adults in every 10,000 butterfly records (of all species)