Urocerus albicornis
The female is a black wood wasp with white markings. The antennae are white with black segments basally and apically. White markings also behind the eyes and on the lateral faces of some tergites.
The male is like the female but with pale tergites in the middle of the abdomen.
Larvae feed in the timber of various coniferous trees including fir, larch, pine and cedar.
Size: 12 - 40mm
Status: Introduced, not established
Distribution: England, Scotland
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.