Urocerus fantoma

Not established in Britain or Ireland. A rare introduction in imported timber.

The female has an orange brown abdomen with a black band across tergites 6 and 7. Very similar to Urocerus augur and can only be separated by having a very small inner tooth on the tarsal claw, which is larger in U. augur.

Urocerus fantoma larvae feed in timber of coniferous trees and take 2 to 3 years to develop.

Jump to other Urocerus species

Size: 12 - 40mm

Status: Not established, occasionally introduced.

Distribution: Not established

Flight period: June to October

Plant associations: Pinaceae (coniferous trees) (1) including...

Abies spp. (firs) (3)
Picea spp. (spruces) (3)
Larix spp. (larches) (3)


1. Benson, R.B., 1952. Handbooks for the Identification of British Insects. Hymenoptera, Symphyta, Vol 6, Section 2(a-c), Royal Entomological Society, London

2. 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

3. Liston, A. D. 1995: Compendium of European Sawflies. List of species, modern nomenclature, distribution, foodplants, identification literature. - Gottfrieding, Chalastos Forestry : 1-190