Dolerus yukonensis - Yukon Weeper

A northern and western species, recorded widely north-west of a line between the Severn and Humber, with isolated records in the Brecks and at Weymouth (Musgrove, 2023).

Abdomen more or less red banded and at least the front legs red marked. Wings entirely hyaline. The scutellum with regularly sized punctures that thin out at the front and those puncture of similar size to the ones on the middle of the mesonotal lobes (different to bimaculatus). Benson describes this as a northern species.

Larvae are not described but assumed to feed on horsetails.

Jump to other Dolerus species

Size: 6.5 - 8mm

GB IUCN Status: Least Concern
GB Rarity Status: None

Distribution: England, Scotland, Wales

Flight period: May to June

Plant associations: Equisitum sp? (possibly horsetails)


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.

Musgrove, A.J. 2023. A review of the status of sawflies of Great Britain - Phase 2: The Athaliidae and the Tenthredinidae (excluding Nematinae). Natural England, unpublished