Small Ranunculus Hecatera dysodea
([Denis & Schiffermüller], 1775)
Wingspan 32-34 mm.
Formerly a relatively common species in the south-east, it had become extinct by the early part of the 20th century. In the last few years, however, it became re-established in a small area of Kent and Essex, around the Thames and is now expanding quite rapidly north and westwards. It is often associated with allotments.
The larvae feed on the flowers and seeds of various wild and cultivated lettuce (Lactuca spp.).
The adults fly mainly in June and July, and are occasionally attracted to light.