EUURA OBLITA GROUP
Euura oblita - Forgotten Leaf-galler
Nematus oblitus Serville, 1823
Phyllocolpa oblita (Serville, 1823)
Nematus pineti Hartig, 1837
Nematus pleurostictus Förster, 1854
Nematus puella Thomson, 1871
Nematus elegans Zaddach, 1884
Records throughout England and Wales. Benson (1958) could only list Lancashire, Cambridgeshire and Buckinghamshire. Since then, the species has proved to be a little more widespread, but it is still not frequently recorded. However, the majority of the records are recent and it seems likely that it would be found more widely if carefully searched for (Musgrove, 2024).
The species shows some variability in colour resembling species of the ischnocera group but generally paler. See Liston et al (2017) for determination.
Euura oblita larvae feed on white willow, crack willow and almond willow. The larvae cause a leaf fold, either spirally twisted or a marginal fold.
Jump to other group oblita species
Size: Female: 4.0 - 5.8mm, male: 4.0 - 4.8mm
GB IUCN status: Least Concern
GB rarity status: None
Distribution: England, Wales
Flight period: Uni- or bivoltine, June to July
Plant associations: Salix alba, Salix fragilis and Salix triandra (white willow, crack willow and almond willow )
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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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.D., Heibo, E., Prous, M., Vårdal, H., Nyman, T. and Vikberg, V., 2017. North European gall-inducing Euura sawflies (Hymenoptera, Tenthredinidae, Nematinae). Zootaxa, 4302(1), pp.1-115.
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
Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England, unpublished