Euura fasciata

The female sawsheath is distinctive being truncate apically when viewed from above with strong setae on the sides and curved setae at the apex. Males are pale on the face, pronotum and the tegulae are creamy-white. The underside of the thorax is black with a longitudinal band in the middle. Males can be determined by the shape of the penis valves.

Euura fasciata larvae feed on goat willow.

Size: Female: 7 - 8mm, male: 6 - 7mm.

Status: Widespread

Distribution: England, Scotland, Wales, Ireland

Flight period: May to June

Plant associations: Salix caprea (goat willow)


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.

Prous, M., Liston, A., Kramp, K., Savina, H., Vårdal, H. and Taeger, A., 2019. The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae). ZooKeys, 875, p.63-127