Trichiosoma pusillum Stephens, 1835

Trichiosoma pusillum

Rare and known only from Britain. A black sawfly within the tibiale group of very similar Trichiosoma species. It has been hypothesised that this species may be abdormal dwarf specimens of Trichiosoma tibiale. No key available at this time.

Trichiosoma pusillum larvae feed on willows.

Jump to other Cimbicidae

Size: 13 - 24mm

Status: Rare

Distribution: England

Flight period: May to June

Plant associations: Salix spp. (willows)

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

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