EUURA VITTATA GROUP
Euura hedstroemi - Hedstroem's Willow Nematine
Amauronematus variabilis var. hedstroemi Malaise, 1931
Amauronematus tillbergi Malaise, 1921 (misident)
The species within the vittata group are hard to differentiate but hedstroemi is thought to be present in Britain.
A plump species that is mostly orange-yellow on the head and thorax. In the female, the abdomen is almost entirely black above up to the seventh tergite and with a pale, dark-centred spot on each side of the first tergite. Males are undescribed.
Euura hedstroemi larvae feed on Tea-leaved Willow.
Size: 5.5 - 6.5mm
GB IUCN Status: Not Assessed
GB Rarity Status: Not Assessed
Distribution: England, Scotland, Wales, Ireland
Flight period: April
Plant associations: Salix phylicifolia (Tea-leaved Willow), Salix aurita (Eared 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, 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
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