Janus luteipes
One of three species in Britain. The tegulae are black or brown and the pronotum is edged with white behind. In Janus cynosbati, the tegulae are yellow and the pronotum is not edged with white.
Janus luteipes larvae feed inside the shoots of willows, poplars, etc.
Size: 6 - 9mm.
Status: Locally common.
Distribution: England, Wales
Flight period: May to July
Plant associations:
Salix spp. (willows) (4)
Populus spp. (poplars) (4) incl. Populus tremula (aspen) (2)
Viburnum spp. (wayfarer, guelder rose) (1)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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References:
(1.) Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London
(2.) Lacourt J., 2020. Hymenoptera of Europe 2. Sawflies of Europe. NAP Editions.
(3.) 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
(4.) Liston, A., 1995. Compendium of European Sawflies, Chalastos Forestry, Daibersdorf