Caliadurgus fasciatellus (Spinola, 1808)

Distribution

Largely confined to southern and eastern England, with records from coastal counties from Cornwall to Essex, and inland northwards to Somerset, Wiltshire, Buckinghamshire and Cambridgeshire. Records outside the main range are from Glamorgan, Lincolnshire and North-east Yorkshire. There are no records from the Channel Islands or Ireland.

The wasp has a Holarctic distribution (Day, 1988).

Status (in Britain only)

This species is not regarded as being scarce or threatened.

Habitat

Frequents exposures of dry, sandy or sandy-clay soils (Day, 1988). Males are rarely found by direct searching, but may be frequent in Malaise-trap catches (M Edwards, pers. comm.)

Flight period

June to early October (Day, 1988), with a peak in late July and August (S P M Roberts, pers. comm., based on a dataset of 36 records).

Prey collected

Prey consists of orb-web spiders of the genus Meta (Tetragnathidae) and Araneus (Araneidae) (Day, 1988).

Nesting biology

Short, vertical burrows are excavated in sandy soil after the prey has been caught. The prey item is gripped in the jaws, between the thorax and abdomen, and carried in front of the wasp. The prey is interred in a vertical position in the cell (Day, 1988).

Flowers visited

No information available.

Author of profile

A S Davidson.

Year profile last updated

2001