Identification keys and general biology are given in Iwata (1976), Richards (1980), Gauld & Bolton (1988), Falk (1991), and Yeo & Corbet (1995).
Widespread in Britain south of the Humber. There are isolated records from Westmorland, Isle of Man, Ayrshire and Mid Perthshire. There is also one record for Ireland (Wicklow).
Overseas found in many parts of Europe (Norway, Sweden, Finland, Denmark, The Netherlands, France, Germany, Italy, Hungary), and far-eastern Russia.