Euura clibrichella - Klibreck Sedge Nematine

This species is loosely an arctic-alpine species. Although it has been found at sea level in the north of Scotland it is usually associated with high hill tundras (Scottish highlands, southern Scottish uplands, Pennines, etc.). This species is similar to Euura moerens, but is different from this through the broad rounded sawsheath that is shorter than the cerci. The male differs by the large triangular extension of the eighth tergite. Another distinguishing feature is hair on the head and thorax, which is grey and short in moerens, but dark in clibricellus and twice as long as the diameter of an ocellus.

Larvae feed on sedges.

Size: 6.0 - 7.0mm.

Status: Local

Distribution: England, Scotland, Wales

Flight period: May to June

Plant associations: Carex spp. (sedges)


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.

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.

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