Pamphilius stramineipes (Hartig, 1837)

Pamphilius stramineipes

Female: The head is mostly black with yellow on the inner eye orbits, lower part of clypeus and a yellow stripe from the eye to the back of the head. The thorax is primarily black but with a yellow mesoscutellum and metascutellum. Abdomen mostly black above with lateral margins narrowly yellow. Apical tergites may be margined with pale yellow right across. Tergites 4 and 5 (sometimes others also) marked reddish-brown. Venation is basally yellow with yellow costa and subcosta and otherwise brown.
Male: The head anteriorly yellow along with genae and a yellow stripe from the eye to the back of the head. Mesoscutellum and metascutellum yellow. Abdomen mostly black above with tergites 4 and 5 (sometimes entirely) yellowish-brown. Venation as for female.

Larvae feed on rose leaves. Early instars feed in a roll of the leaf margin. Late instars draw several leaflets together or fold a leaflet.

Size: Male: 8 - 10mm, Female: 8 - 12mm

Status: Rare

Distribution: Scotland

Flight period: June

Plant associations: Rosa spp. (roses)

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. ed., 2002. Sawflies (Hymenoptera, Symphyta), I: a review of the suborder, the Western Palaearctic taxa of Xyeloidea and Pamphilioidea. Tremex Press.