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.

Jump to other Cimbicidae

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. On the continent Sedum album and Sedum acre (white stonecrop and goldmoss stonecrop)

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

Liston, A. D. 1997: Discovery of the larval hostplant of Corynis crassicornis (Rossi) (Hym., Cimbicidae: Coryninae), and notes on the species natural history. - Sawfly News. - Chalastos, Daibersdorf., Daibersdorf 1 (3): 22-25

Viitasaari, M. 1989: Taxonomic notes on the genus Trichiosoma Leach (Hymenoptera, Cimbicidae) II. - Annales Entomologici Fennici, Helsinki 55 (3): 111-129