Cladius rufipes Serville, 1823

Cladius rufipes

According to Prous et al, 2019, there is currently no reliable key or species treatment available for this genus. The description follows Benson (Priophorus ulmi).
The head on the frons and temples above smooth and shining without sculpture or hair-warts. A black sawfly with yellowish tibiae and tarsi on all legs. The wings are more or less infuscated. The abdomen has a brown spot in the middle of the first tergite.

Larvae feed on elm.

 

Size: 5 - 7.5mm

Status: Local

Distribution: England, Scotland, Ireland

Flight period: Bivoltine, May to August

Plant associations: Ulmus spp. (elms)

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

Prous, M., Liston, A., Kramp, K., Savina, H., Vårdal, H. and Taeger, A., 2019. The West Palaearctic genera of Nematinae (Hymenoptera, Tenthredinidae). ZooKeys, 875, p.63.