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While pruning in the garden my wife found a batch of eggs on on of the leaves. I placed them in a box with rose leaves and they eventually hatched.
See the following links.
www.ispot.org.UK/node/355682 (This being an entry on Invertàbrate Forum - not fuffypenguins)
All were successfully reared to adult-hood after finding their favourite food plant was snapdragon.
Lat/Lng: 52.1277, -2.3261
OS grid ref: SO777477