EUURA ANOMALOPTERA GROUP
Euura anomaloptera - Anomalous Leaf-galler
Nematus anomalopterus Förster, 1854
Tubpontania anomaloptera (Förster, 1854)
Nematus tuberculatus Benson, 1953
North to northern Scotland, apparently relatively frequent. Benson (1958) could only list three records for this species, suggesting either a significant increase or at least increased understanding of how to detect it. Detailed survey on the Isle of Wight found it in every hectad there. Most records that were associated with a tree species referred to Salix cinerea, a few to S. caprea and S. aurita, and none to S. phylicifolia. Liston et al. (2017) do not confirm the species as galling cinerea, caprea or aurita, but do list S. caprea as a host for Euura cyrnea (not yet confirmed in Britain). For the time being, records are taken at face value but it is possible the status of this species, or the assessment of these galls, may change in future (Musgrove, 2024).
See Liston et al (2017) for determination of adults.
Larvae feed on tea-leaved willow and likely other willows causing only one leaf edge to roll downwards.
Jump to other group anomaloptera species
Size: Female: 3.0 - 4.9mm, male: 3.0 - 4.4mm
GB IUCN Status: Least Concern
GB Rarity Status: None
Distribution: England, Scotland, Wales, Ireland
Flight period: Univoltine
Plant associations: Salix phylicifolia and possibly Salix atrocinerea (tea-leaved willow and possibly grey willow)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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- Euura anomaloptera female Credit Andrew Green
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- Euura anomaloptera female sawsheath dorsal view Credit Andrew Green
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- Euura anomaloptera female sawsheath lateral view Credit Andrew Green
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- Euura anomaloptera female vertex detail Credit Andrew Green
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- Euura anomaloptera female inner orbit detail Credit Andrew Green
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- Euura anomaloptera female mandibles Credit Andrew Green
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- Euura anomaloptera female mesepisternum Credit Andrew Green
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- Euura anomaloptera female serrulae Credit Andrew Green
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- Euura anomaloptera female lancet Credit Andrew Green
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