Urocerus flavicornis
Not established in Britain or Ireland. A rare introduction in imported timber.
The eye spots on the head are widely separated as in U. gigas. The female abdomen is yellow to reddish brown on tergite 2, 7 and 8 (in the basal half) with the remainder black. The male abdomen is yellow with black basally and apically.
Larvae feed in timber of coniferous trees and take 2 to 3 years to develop.
Size: 12 - 40mm
Status: Not established, occasionally introduced.
Distribution: Not established
Flight period: June to October
Plant associations: Pinaceae (coniferous trees)
The National Biodiversity Network records are shown on the map below. (See terms and conditions)
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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
Schiff, N.M., Goulet, H., Smith, D.R., Boudreault, C., Wilson, A.D. and Scheffler, B.E., 2012. Siricidae (Hymenoptera: Symphyta: Siricoidea) of the western hemisphere. Canadian Journal of Arthropod Identification 21: 1-305, 21, pp.1-305.