The most common British Diodontus.

The largest of the four British species in the Andrena wilkella group. Guichard (1971) provides characters distinguishing both sexes of A. lathyri from those of its three relatives, but he was aware at that time that the best character for separating the females is the deeply enmarginate pygidium, a character unique amongst British Andrena

This is one of the three British ‘long-cheeked’ social wasps. Identification keys and details of biology are given in Archer (1996), Else (1994), Edwards (1980) and Spradbery (1973).

Identification keys and general biology are given in Iwata (1976), Richards (1980), Gauld & Bolton (1988), Falk (1991), and Yeo & Corbet (1995).

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

Crossocerus dimidiatus, known under the generic names Crabro, Blepharipus (in error) or Cuphopterus in older works, is one of the larger British Crossocerus with yellow-spotted gasters, resembling Crabro and Ectemnius, rather than the smaller, darker Crossocerus more typical of the British fauna.

Our second very common social wasp with a short oculo-malar space (see V. germanica) which is also a frequent pest. For keys and biology, see V. germanica profile.