Three species of Oxybelus occur in the British Isles. These wasps are superficially very similar to one another (in some localities - e.g. the Gower, West Glamorgan - they may all fly together). They are rather small, active wasps (body length 5-9 mm) with the body predominantly black with some or all of the abdominal terga marked with a pair of pale yellow or white spots. The female of O. argentatus is perhaps the most attractive of the three, its abdomen clothed with rather dense, decumbent, silvery hairs.
This species occurs very locally both on the coast (especially on dunes) and on inland heaths in southern England and west Wales. Records for Ireland are from the south-east (the Wexford coast (Stelfox 1933)). It is also known from Jersey.