Monophadnoides ruficruris
Recorded widely in England and Wales, mostly south of the Wash but with some records from northern England. Benson (1952) noted the range as extending north to Lanarkshire although there are no recent Scottish records (Musgrove, 2023).
The thorax is black and the abdomen almost so, but the pronotal margin and tegulae are yellow. The hind tibia are yellow. The head with the supra-antennal grooves faint or absent. Tarsal claws are bifid with the inner and outer tooth well apart.
Monophadnoides ruficruris larvae have branched spines and feed on brambles, etc.
Jump to other Monophadnoides species
Size: 6 - 8mm
GB IUCN Status: Least Concern
GB Rarity Status: None
Distribution: England, Scotland, Wales
Flight period: May to June
Plant associations: Rubus spp.(brambles, etc.)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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- Monophadnoides ruficruris penis valve Credit Ian Andrews
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
Musgrove, A.J. 2023. A review of the status of sawflies of Great Britain - Phase 2: The Athaliidae and the Tenthredinidae (excluding Nematinae). Natural England, unpublished