EUURA MYOSOTIDIS GROUP

Euura myosotidis - Vetchling Nematine

Tenthredo myosotidis Fabricius, 1804
Nematus incompletus Förster, 1854
Nematus smaragdinus Stein, 1881
Nematus pulchellus Cameron, 1882
Nematus chlorogaster Zaddach, 1884
Nematus myosotidis (Fabricius, 1804)
Nematus interruptus Serville, 1823
Nematus ambiguus Förster, 1854
Nematus segmentarius Förster, 1854
Nematus zaddachi (Enslin, 1916)
Pteronidea myosotidis var. zaddachi Enslin, 1916
Euura zaddachi (Enslin, 1916)
Euura incompleta (Förster, 1854)
Pteronidea transversalis Lindqvist, 1977

North to northern Scotland. With the exception of three gall-making species, this is the most frequently recorded species of Euura, feeding on clovers and related plants. Recent DNA-analyses have led to the inclusion of the formerly recognised E. incompleta within this taxon also (Musgrove, 2024).

The head and thorax are black with yellow on the labrum, mostly more or less the upper corner of the eye and in the male mostly the posterior orbits, posterior corners of the pronotum, the tegulae, and sometimes the mesopleura. The abdomen is yellow with a more or less broad black streak on the dorsum, rarely only the basal tergites are blackened. The legs are yellow. Rarely, the hind legs are blackened at the tip.

Euura myosotidis larvae feed on vetches, Common Sainfoin and clovers.

Size: 6.0 - 7.0mm.

GB IUCN status: Least Concern
GB rarity status: None

Distribution: England, Scotland, Wales, Ireland

Flight period: May to August

Plant associations: Lathyrus pratensis, Onobrychis viciifolia and Trifolium spp. (Meadow Vetchling, Common Sainfoin and clovers).

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 Natural England, unpublished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