Corynis obscura
Only known in Britain from an unverified record from Lincolnshire in the late 18th to early 19th century. Found across Scandinavia and central Europe, rarely on the near continent. A small black species with dark legs.
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 Geranium sylvaticum (Wood Crane's-bill)
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
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