Arachnospila minutula is a typical black and red spider wasp. Despite its name it is a similar size to, or even larger than, many of its congeners.The male is readily recognised by the structure of the hind legs, while the female lacks a comb of spines on the fore-tarsus (subgenus Anoplochares Banks) and needs to be separated only from A. spissa.
Widely distributed in England and Wales. Not recorded from Ireland. Present on the Channel Islands.
It occurs in central Europe, being sporadic in the north and south, and in Asia eastwards to Mongolia (Wolf 1972).