A Cotswold Year - Charting the seasons in the South Cotswolds

Monday 4 July 2016

Large Blue Butterfly

 The Large Blue was declared extinct in the UK in 1979 but has since been successfully reintroduced at a number of sites and it is great to see them flying in the Cotswolds again.
The larvae are parasitic on the grubs of red ants so they can only breed where there are colonies of ants.
They can be seen in late June and July but they are still a very rare butterfly so we were delighted to find this one today.
They are actually quite a small butterfly but the largest UK blue.

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