According to this story from the BBC, British butterflies need a good summer to recover from last year:
And down at the allotment - the shed is finished! No photo yet, as it was getting a bit dim last night when we finally locked it up.
Data from the UK Butterfly Monitoring Scheme showed that eight species were at an all-time low as a result of an unsuccessful summer in 2007.
The main reason behind the decline was an above average rainfall, which meant the insects, such as the common blue, had fewer chances to feed or breed.
The data, which was collected by thousands of volunteers, also revealed that species that were already declining, including the high brown fritillary and the Duke of Burgundy, suffered another bad year.