EUURA FLAVESCENS GROUP
Euura flavescens - Yellow Willow Nematine
Nematus flavescens Stephens, 1835
Pteronidea boreophila Lindqvist, 1971
Nematus boreophilus (Lindqvist, 1971)
Nematus dilutus Brischke, 1883
Pteronidea stichi Enslin, 1913
Nematus stichi (Enslin, 1913)
Nematus testaceus Thomson, 1871
Euura stichi (Enslin, 1913)
Pteronidea fulvescens Lindqvist, 1949
Nematus fulvescens (Lindqvist, 1949)
Pteronidea variegata Lindqvist, 1958
Nematus variegatus (Lindqvist, 1958)
Euura boreophila (Lindqvist, 1971)
Euura fulvescens (Lindqvist, 1949)
Euura variegata (Lindqvist, 1958)
North to northern Scotland. Although seemingly quite scarce, it still recorded occasionally (Musgrove, 2024).
In the female the metanotum is entirely yellow and the head is also yellow. The abdomen may or may not have black spots along the dorsal midline. In the male the apical two tergites are mainly black. The inner orbits are yellow.
Euura flavescens larvae are solitary edge feeders on grey willow and common osier.
Size: Female: 5.5 - 7.0mm.
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 atrocinerea and Salix viminalis (grey willow and common osier).
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
-
- Euura flavescens female Credit Ian Andrews
-
- Euura flavescens female Credit Ian Andrews
-
- Euura flavescens female wing venation Credit Ian Andrews
-
- Euura flavescens saw detail Credit Ian Andrews
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 Natural England, unpublished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