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.
Larvae thought to feed on eared willow and grey willow.
Size: 5.5 - 6.5mm
Distribution: England, Scotland, Wales, Ireland
Flight period: April
Plant associations: Salix aurita and Salix atrocinerea (eared willow and grey willow)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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