Arge fuscipes (Fallén, 1808)

Arge fuscipes

One of the black species. Females can be separated from the similar Arge expansa by the costa of the forewing being black (pale in expansa) and males have an entirely black hind tibia (expansa have a white base).
Larvae feed on birches or willow.

Status: unknown

Distribution: England, Scotland, Wales, Ireland

Flight period: May to June

Plant associations: Betula spp. and Salix spp. (birches and willows)

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