A medium-sized, black and red species. It may be identified using Day (1988) and is characterised in the female by having comb-spines on the fore tarsus, a coarse, granular surface to the propodeum and rather long postnotum, and in the male by the subgenital plate which has a short tuft of hairs near the apex. Females of the subgenus Ammosphex Wilcke, to which this species belongs, are amongst the taxonomically most difficult of the family in Europe. Spooner (1941) was the first to correctly associate the females with the males, and earlier published records need to be treated… Read more

A small, black solitary wasp. Identification keys are given in Lomholt (1984), Richards (1980) and Yeo & Corbet (1995).

A small, stem nesting solitary wasp. Identification keys are given in Lomholdt (1984) (as R. nigrinum), Richards (1980) and Yeo & Corbet (1995).

This species had not been recorded in Britain at the time of Richards' (1980) RES handbook, but identification characters are given in Lomholdt (1984). It was first recorded in Britain in 1986 (Allen, 1987), although it may previously have been confused with S. solskyi.

This is by far the more common species of Stigmus in Britain.

Identification keys and general biology are given in Morgan (1984) and Falk (1991).

Identification keys and general biology are given in Morgan (1984) and Falk (1991). Previously known as C. helleni Linsenmaier, 1959. Kunz (1994) considers C. bicolor Lepeletier, 1805 and C. illigeri to be the same species. Morgan (1984) separates these two names, with C. bicolor only known from Jersey.

A small, ground-nesting red and black solitary wasp. Identification keys are given in Richards (1980), Lomholt (1984) and Yeo & Corbet (1995).

A species closely related to Passaloecus insignis, from which it is separable only with difficulty.