Nysson wesmaeli Lepeletier, 1845; Nysson distinguendus Chevrier, 1867; Nysson susterai Zavadil in Zavadil and Šnoflak, 1948; Nysson susterai Zavadil, 1951
A small red and black wasp which is a cleptoparasite of the similar looking Harpactus tumidus (Panzer), occurring in the same sparsely-vegetated sandy areas as its host.
Recorded widely but sparingly across England and Wales as far north as Yorkshire and possibly Northumberland, though precise location(s) relating to the latter county (given by Richards (1980)) have not been found. Within this range, sites coincide with coastal areas and sandy districts. There are several old Channel Islands records and a few modem ones. Abroad, known from most of Europe; also Kazakhstan (Lomholdt, 1975-76).