EUURA PUNICEA GROUP

Euura fasciata - Banded Willow Nematine

Amauronematus fasciatus Konow, 1897
Amauronematus perkinsi Benson, 1933

North to northern Scotland. Although overall numbers of records are relatively low, a high proportion of these are recent and widely distributed (Musgrove, 2024).

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.

GB IUCN status: Least Concern
GB rarity status: None

Distribution: England, Scotland, Wales, Ireland

Flight period: May to June

Plant associations: Salix caprea (goat willow)

The National Biodiversity Network records are shown on the map below. (See terms and conditions)

References:

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

Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England, unpublished

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