Xiphydria prolongata (Geoffroy, 1785)

Xiphydria prolongata

The willow wood-wasp is one of three species in the genus in Britain. Xiphydria prolongata is the only one of the three species to have a red girdle on the abdomen covering at least tergite four. The abdomen also has lateral white spots.

Larvae bore into the wood of ailing or dead willows.

Jump to other Xiphydria species

Size: 6 - 18mm

Status: Local

Distribution: England, Wales

Flight period: June to August

Plant associations: Salix spp. (willows)


Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London

Liston A, Knight G, Sheppard D, Broad G, Livermore L (2014) Checklist of British and Irish Hymenoptera - Sawflies, ‘Symphyta’. Biodiversity Data Journal 2: e1168. https://doi.org/10.3897/BDJ.2.e1168

Shaw, M. R. & Liston, A. D. 1985: Xiphydria longicollis (Geoffroy) (Hymenoptera: Xiphydriidae) new to Britain. - Entomologist's Gazette, Faringdon 36: 233-235