Csóka, GY., and Kovács, T. 1999. Xylophagous insects. Forest Research Institute. Erdészeti Turományos Intézet. Agroinform Kiadó, Budapest. 189 pp.
En: Sirex wasp
18-30 mm. Swarms from May until September. The female lays 200-400 eggs on dying or dead stems of Picea and Abies. Can be found from Europe to Northern-Mongolia.
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