Euura humeralis (Serville, 1823)

Euura humeralis

A dark species, almost entirely black. In the female, with some white on the inner orbit, the pronotum, the apex of the abdomen and sometimes all the sternites. Males are best identified by reference to the hypopygium and the penis valves.

Euura humeralis larvaeare thought to feed on grey willow.

Size: Females: 7.0 - 8.0mm, males: 6.0 - 7.0mm

Status: Local

Distribution: England, Scotland, Wales

Flight period: April to May

Plant associations: Salix atrocinerea (grey willow)

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

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