EUURA MYOSOTIDIS GROUP

Euura hypoxantha - Yellow-bellied Nematine

Nematus hypoxanthus Förster, 1854
Nematus palliatus Thomson, 1863
Nematus orbitalis Cameron, 1884
Pteronidea nigronota Lindqvist, 1957

North to northern Scotland, frequently recorded (Musgrove, 2024).

In the female the abdomen is usually mostly black above as are the front and middle lobes of the mesonotum. The underside of the abdomen, 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.

GB IUCN status: Least Concern
GB rarity status: None

Distribution: England, Scotland, Wales, Ireland

Flight period: May to June, July to August

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

The National Biodiversity Network records are shown on the map below. (See terms and conditions)

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

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

Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England, unpublished

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