Probably confined to the Cairngorm Plateau near the summit of Braeriach.
The female is a dull insect with heavy coriaceous sculpture all over and with wings that do not reach the apex of the abdomen. Predominantly black with a yellow head and mesonotum. Males can be identified by the heavy coriaceous sculpture on the head and thorax, small eyes and the shape of the penis valve.
The species is a high montane species of the arctic-alpine zone. Larvae are thought to feed on willows and probably dwarf willow.
Size: 5 - 6mm
Flight period: June to July
Plant associations: Salix spp., probably Salix herbacea (common)
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