Agenioideus cinctellus is a spider wasp of the subfamily Pompilinae with a Palearctic distribution.

The abdomen is mainly black in colour but the rest of the body is very variable and the legs may vary from whitish to reddish brown, some specimens have spots on the tibia of the hind.

[3] In Britain, the flight period is normally June to August but occasionally adults emerge as early as late May.

[3] This wasp uses a wide range of natural cavities for nesting, but will also utilise the abandoned burrows of other aculeate hymenoptera, empty mud cells and snail shells.

[3] Found in southern England north to the Midlands and East Anglia through central and northern Europe[3] eastwards as far as Japan.