Rhopalum clavipes (Linnaeus,1758)

Description and notes

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

Distribution

Widely recorded from England, Wales, Scotland and Ireland. Overseas this species is found throughout Europe eastwards to Mongolia and Japan. Status (in Britain only)

Status (in Britain only)

This species is not regarded as being scarce or threatened.

Habitat

Found in a wide variety of open, sunny habitats associated with its feeding and nesting sites and prey habitats.

Flight period

Univoltine, May to August .

Prey collected

In Europe nest cells are reported as being stocked with a range of small Diptera such as Mycetophilidae, Chironomidae and Culicidae, together with Homoptera, Psocoptera and Psyllidae. In Britain, prey collected appears to be mostly Psocidae (Lomholdt 1984).

Nesting biology

This species is a stem nester and has been found nesting in the stems of a wide range of plants including ash, bramble, elder and reed. Females will either excavate their own nests or make use of existing cavities such as old beetle borings. If there is space, short side branches off the main tunnel may be constructed. Each nest may hold up to 13 cells.

Flowers visited

None recorded

Parasites

None recorded from Britain. In Europe, recorded parasites are Omalus auratus (Hymenoptera: Chrysididae), Torymus armatus (Hymenoptera: Torymidae), Enclisis macilenta and Bathythrix fragifis (Hymenoptera: lchneumonidae) and Oebalia minuta (Diptera: Sarcophagidae).

Author of profile

M Smith

Year profile last updated

2005