Euura viridis - Green Birch Nematine

The pale colour is green in life fading to yellow in death. The female of this species is similar to glutinosae and dispar. Examination of the penis valve or saw is required for determination. In viridis the metascutellum is sometimes entirely pale, often darkened on the hind margin, or with a crescent-shaped dark mark that is sometimes divided into two spots. In glutinosae, the metascutellum is pale with a conspicuous black spot centrally that is round or elliptical. Males of this species have a black mesosternum.

Euura viridis larvae feed on birches.

Jump to other Euura bergmanni group species

Size: Female: 6.0 - 9.0mm, male: 5.0 - 6.0mm.

Status: Widespread

Distribution: England, Scotland, Wales, Ireland

Flight period: April to May, July to August

Plant associations: Betula spp. (birches)


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

Prous, M., Liston, A., Mutanen, M. 2021. Revision of the West Palaearctic Euura bergmanni and oligospila groups (Hymenoptera, Tenthredinidae. Journal of Hymenoptera Research.