Clifden Nonpareil

Formerly resident in the Norfolk Broads and Kent, it became extinct in the UK by the mid-1960s, after which it was recorded as a casual immigrant. In the 21st century, records have increased and the species in undoubtedly now resident in some areas. Immigration has helped recolonisation, though the increase may have been helped by the deliberate release of captive stock.  In the county, Turner (1955) listed just one record, at Leigh Woods near Bristol in 1880. Since 2010 there has been a considerable increase in records,  including as many as 23 in 2020. Its habitat is broadleaved woodland, but it may be found elsewhere. Larvae feed on Aspen. There is no evidence yet of breeding in the county.