Corynis crassicornis
Only known in Britain from an unverified record from Bristol in the late 18th to early 19th century. Found sporadically throughout Europe, rarely on the near continent. A small dark species with yellow legs and yellow bands on the apical margins of the tergites giving a banded appearance. The tergite bands broaden on the lateral faces.
Size: 6 - 10mm
Status: Extinct in Britain
Distribution: Possible record from England in late 18th Century/ early 19th Century
Flight period: May to August
Plant associations: Not known
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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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