1669 Common EmeraldHemithea aestivaria Trapped - Melbourne, Derbyshire - June 14th 2004 This species is a resident and is fairly common but on a local basis in the south of Derbyshire. It is rare or absent north of the Trent Valley region. On the wing from mid-June to late July. Food Plant - Hawthorn, Midland Hawthorn, Blackthorn, Hazel, Oaks, willows, birches.