Small Tortoiseshell (Aglais urticae) The warm weather may be short-lived, but it has brought a few more butterflies, including this Small Tortoiseshell. These are usually common throughout the UK, and overwinter as adults – emerging from hibernation in the spring. This year I haven’t seen any locally until now; I can only guess that the emergent adults stayed under cover in the April rain, but somehow managed to breed to produce the summer adults (one Small Tortoiseshell doesn’t make a summer, but I hope there will be more).
Brimstones have a similar life-cycle, hibernating as adults and producing a new generation in the summer, so it’s good to see a few of these now: Brimstone (Gonepteryx rhamni)
Many butterflies and moths seen in the UK are migratory, including Red Admirals (see 28 July), and we’re now getting significant numbers of Silver-Y moths, feeding on nectar in the evenings Silver Y (Autographa gamma)

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