Euura stenogaster - Narrow-bodied Willow Nematine

Specimens recorded as this species, or under the synonym Amauronematus fallax, may contain other overlooked species in Britain. The presence of this species in Britain and Ireland is uncertain. Several specimens labelled as Amauronematus stenogaster or Amauronematus fallax were examined prior to 2010 by Liston et al and all were found to be either Amauronematus mimus, or another unknown species resembling mimus.

Euura stenogaster larvae feed on creeping willow.

Size: Female: 7.4 - 8.9mm, male: 6.9 - 7.8mm.

Status: Local

Distribution: England, Scotland, Wales, Ireland

Flight period: April to May

Plant associations: Salix repens (creeping willow)


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.D., Knight, G., Heibo, E., Bland, K.P., Barstad, T.E., Blank, S.M., Boevé, J.L., Fiedler, C., Grearson, K.J., Halstead, A. and Jacobs, H.J., 2012. On Scottish sawflies, with results of the 14th International Sawfly Workshop, in the southern Highlands, 2010 (Hymenoptera, Symphyta). Beiträge zur Entomologie= Contributions to Entomology, 62(1), pp.1-68.

Liston A, Knight G, Sheppard D, Broad G, Livermore L (2014) Checklist of British and Irish Hymenoptera - Sawflies, ‘Symphyta’. Biodiversity Data Journal 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

Schmidt, S., 1997. Amauronematus Konow, 1890-Ökologie und Taxonomie der nordeuropäischen Arten des fallax-Komplexes (Hymenoptera, Tenthredinidae). Beiträge zur Entomologie= Contributions to Entomology, 47(2), pp.227-326.