The female of this species is similar to Euura fagi. Males of the two species cannot be distinguished. In miliaris the female hind basitarsus is no longer than four times the apical breadth, whereas in fagi the basitarsus is clearly more than four times as long as broad. The head, mesonotum and often the abdomen are mainly brown or orange-yellow, usually flecked with black, and the abdomen is more or less black above.
Euura miliaris larvae feed gregariously on willows and sometimes poplars.
Size: 7.5 - 9.0mm.
Distribution: England, Scotland, Wales, Ireland
Flight period: May to June, July to August
Plant associations: Salix spp., and sometimes Populus spp. (willows and sometimes poplars).
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
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