Euura nigricantis - dolichura group (formerly Pontania nigricantis)
See Liston et al (2017) for determination of adults. The host plant is an upland species. Within this group, males of Euura femoralis and Euura nigricantis are inseparable.
Euura nigricantis larvae feed on Dark-leaved Willow causing an elongated gall, often paired, on the upper side of a leaf.
Jump to other group dolichura species
Size: Female: 2.6 - 3.7mm, male: 2.9 - 3.8mm
Status: Rare
Distribution: England, Scotland
Flight period: Univoltine
Plant associations: Salix myrsinifolia (Dark-leaved 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