![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
The first Hymenopterous parasite of adult psyllids, Parapsyllaephagus adulticolus gen. et sp. nov. (Chalcididae: Encyrtinae) is described from Psylla melanoneura Förster in the North-east of England. The parasite has also been obtained from Psylla subferrigenea Edwards. The new genus is characterised by a number of concurrent morphological structures, outstanding amongst which is the presence of a distinct poststigmal vein on the forewing, such that the stigmal vein leaves the submarginal vein some distance before the costal margin.