Crabro chrysostomus (LEPELETIER & BRULLÉ,1835); Crabro cinctus (SPINOLA,1806); Crabro comptus (LEPELETIER & BRULLÉ,1835); Crabro denticulatus (PACKARD,1866); Crabro effosus (PACKARD,1866); Crabro gracilissimus (PACKARD,1866); Crabro interstinctus (SMITH,1856); Crabro obscures (SMITH,1856); Crabro papagorum (VIERECK,1908); Crabro xylurgus (SHUCKARD,1837)
A medium-sized Ectemnius with well-separated spots on the terga. Previously known as E. chrysostomus (Lepeletier & Brullé, 1835).
Our most widespread Ectemnius species with records throughout England and Wales, Scotland as far north as the Forres area (Moray), Ireland and Jersey. How ever, it is of rather local occurrence in many areas and there is strong evidence of a decline over much of central and southern England. This is particularly marked in counties such as Dorset, Hampshire, Hertfordshire and Warwickshire where recording levels have been relatively high in recent years. A Holarctic species, occurring from Europe to Japan in the Palaearctic region.