Pseudohemitaxonus sharpi (Cameron, 1879)

Pseudohemitaxonus sharpi

Overall a black sawfly with pale legs. The front lobe of the mesonotum, the scutellum, the stigma, the mesopleura and most of the abdomen are black. The abdomen has some degree of brown from the middle to the apex.

Pseudohemitaxonus sharpi larvae have not been observed in Britain but are known to feed on lady fern in Finland.

Size: 4 - 5.5mm

Status: Rare

Distribution: England, Scotland

Flight period: May to June

Plant associations: Filices incl. Athyrium filix-femina (ferns incl. lady fern)

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

Vikberg, V., 2010. Pseudohemitaxonus sharpi (Cameron)(Hymenoptera: Symphyta: Tenthredinidae) in Finland. Sahlbergia vol.16.1, 11-16