Pristiphora friesei - Fries' Larch Sawyer, Fries' Larch Sawfly
Pristiphora laricis group

Recorded from Dundreggan in 2010 and 2011 (Knight 2011,2012). Could be overlooked amongst laricis, particularly as not featured in Benson (1958) (Musgrove, 2024).

This species is extremely similar to Pristiphora laricis. This species tends to be darker with a black or dark brown labrum and at least in the female the pronotum is mostly black. The flagellum is 3.5 to 4.0 times as long as the width of the head.

Pristiphora friesei larval food plant is European larch.

Jump to other species of Pristiphora

Size: 4.0 - 6.5mm

GB IUCN status: Data Deficient
GB rarity status: Nationally Rare

Distribution: Scotland, Ireland

Flight period: Assumed May to July

Plant associations: Larix decidua (European Larch)

The National Biodiversity Network records are shown on the map below. (See terms and conditions)

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

Musgrove, A.J. 2024. A review of the status of sawflies of Great Britain - Phase 3: The Tenthredinidae (subfamily Nematinae). Natural England, unpublished

Prous, M., Kramp, K., Vikberg, V. and Liston, A., 2017. north-Western Palaearctic species of Pristiphora (hymenoptera, tenthredinidae). Journal of Hymenoptera Research, Vol. 59