Megalodontes cephalotes
This species is reported historically from only two locations near Bristol and Plymouth (specimens not found in any collections).
Larvae feed on Apiaceae (umbellifers).
Size: 11 - 12mm
Status: Extinct [probably never present in Britain]
Distribution: ?England
Flight period: unknown
Plant associations: Apiaceae (umbellifers)
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