[2] This species has a Palearctic distribution occurring in most European countries from Ireland in the west[3] and east to Siberia, Japan, Korea, China; south to Turkey.

[4] These wasps prefer deciduous woodland and hedge rows with sandy soil in sunny mountain areas with abundant flowering plants, at an elevation of over 1,000 metres (3,300 ft) above sea level.

[6][7] Females of Argogorytes mystaceus usually visit Apiaceae flowers,[5] wood spurge and honeydew on sweet chestnut leaves.

Larvae feed on nymphs of small leafhoppers and spittlebugs (mainly Philaenus and Aphrophora[12] species).

Among their natural enemies there are parasitoid wasps (especially Ichneumonidae larvae) and nest parasites (Nysson spinosus).