This butterfly discovered by my daughter on one of her Geraniums (Perlagoniums) was unknown to her or myself.
At first we mistook it for a long tailed blue. but it did not fit the descriptions in the books. Of course it isn’t ‘blue’ , but quite a few blue butterflies have females which are brown. Eventually we realised that it was a ‘Geranium Bronze’
Googling the name tells much about it. It is a pest of garden Geraniums (the pelargoniums) and will also lay its eggs on wild geranium species.
The original home of the butterfly is South Africa where the caterpillar is happy chewing at the wild Pelargoniums. Now it has found its way to Europe via the Balearic islands and is widespread in France (spreading since the early 1990′s) and now is found in England.
How much of a pest it is we will no doubt see in a few years. In England it is on the notifiable list of DEFRA (Department of the Environment, Food and Rural Affairs.
Found at Gourdon (46) the LOT on November 2nd 2014