Chalkhill Blue (Polyommatus coridon)

Male
Male
Female
Female
Communal feeding on dog faeces. (The two on the left are Common Blue).
Communal feeding on dog faeces. (The two on the left are Common Blue).
Female underside
Female underside
 
Information

Law: Protection under the Wildlife and Countryside Act 1981.
NERC Act S41: Not listed
Local status: Locally common. Exists in colonies and only found on Chalk (except for an occasional wanderer).
Size: Small.
Larval foodplant: Horseshoe Vetch
No. of broods: One
Flight time(s): Early July to end of August.
Winter: Egg (The only Bedfordshire "Blue" that overwinters in this state).
Habits: Likes to feed on Knapweed and Scabious. Males also may feed communally on mammal dung, e.g. dog.
Habitats: Chalk downland only, where turf is short and its sole larval-foodplant grows.
Distribution:

Normalized Weekly Abundance


Flight time graph


No. of Adults

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Number of records
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Adults per record
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Percentage of all adults reported (of all species) in each year
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Number of adults in every 10,000 butterfly records (of all species)