EUURA MYOSOTIDIS GROUP

Euura fuscomaculata - Dark-spotted Aspen Nematine

Nematus fuscomaculatus Förster, 1854
Nematus carelicus Hellén, 1948
Pteronidea winteri Lindqvist, 1958
Nematus strongylogaster Cameron, 1878
Pteronus dossuarius Konow, 1904
Nematus gracilis Gimmerthal, 1834
Euura carelica (Hellén, 1948)

Scattered locations north to northern Scotland. Seemingly genuinely rare or easily overlooked, but still being discovered on a regular basis (Musgrove, 2024).

In the female the abdomen is almost entirely black above. The mesopleura, hind orbits are mainly black and the front and middle lobes of mesonotum are usually mainly black. The male is unknown.

Euura fuscomaculata larvae feed on aspen.

Size: Female: 5.0 - 6.0mm.

GB IUCN status: Near Threatened
GB rarity status: Nationally Rare

Distribution: England, Scotland

Flight period: May to June

Plant associations: Populus tremula (aspen).

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 Natural England, unpublished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