Euura hypoxantha - Yellow-bellied Nematine

In the female the abdomen is usually mostly black above as are the front and middle lobes of the mesonotum. The mesopleura and hind orbits are usually pale. The cerci are very short, projecting less than half way to the tip of the sawsheath when viewed from above. In the male the apical two tergites are mainly pale, as are the mesopleura, and on the face the pale parts are yellow.

Euura hypoxantha larvae feed on willows and poplars.

Size: Female: 5.0 - 6.0mm, male: 5.0 - 5.5mm.

Status: Widespread

Distribution: England, Scotland, Wales, Ireland

Flight period: May to June, July to August

Plant associations: Salix spp. and Populus spp. (willows and 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.

Muche, W.H., 1974. Die Nematinengattungen Pristiphora Latreille, Pachynematus Konow und Nematus Panzer (Hym., Temthredinidae). Deutsche Entomologische Zeitschrift, 21(1/3), pp.1-137.

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