Allantus calceatus has an abdomen that is black with a red girdle on tergites 4 and/or 5. The hind femora are red or yellow sometimes with a black base. The tegulae are black.
Larvae feed on various members of the rose family.
Size: 7 - 10mm
Distribution: England, Scotland, Wales, Ireland
Flight period: May to June
Plant associations: Rosaceae incl. Alchemilla vulgaris, Sanguisorba officinalis, Filipendula spp., Fragaria spp., Rosa spp., and Rubus spp. (the rose family incl. lady's mantle, meadowsweets, strawberry, roses and brambles)
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