Identification keys are given in Morgan (1984). General biology is given in Morgan (1984) and Falk (1991).
This map is for Chrysis mediata agg.
Cornwall to Kent and north to Worcestershire, Leicestershire and Lincolnshire.There is an old record from Cumbria and recent records from south-east Ireland.
Overseas, occurs in Europe (including Norway, Sweden, Finland,The Netherlands, Belgium, Luxembourg, Switzerland, Italy, Hungary) and the rest of the Palaearctic, excluding Japan.