Brachythops flavens
The thorax is black and the abdomen yellow. The wings are yellowish with yellow veins in the basal half and a black stigma. The front mesonotal lobe is shining with very sparse pubescence. The clypeus is margined with yellow. The pronotum is mostly yellow and the first antennal segment usually also yellow.
Larvae feed on sedges in wet habitats including moorland mires.
Size: 6 - 7mm
Status: Widespread
Distribution: England, Scotland, Wales, Ireland
Flight period: Bivoltine, May to June and July to August.
Plant associations: Carex spp. (sedges)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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- Brachythops flavens larva (Netherlands specimen) Credit Leo Blommers
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