Scolytus ratzeburgi Janson, 1856

[Hungarian Version]

Csóka, György and Kovács, Tibor (1999): Xilofág rovarok - Xylophagous insects. Hungarian Forest Research Institute. Erdészeti Turományos Intézet, Agroinform Kiadó, Budapest, 189 pp.


Mn: Nyírkéreg szú  /  En: Birch bark beetle

5-6 mm. Emerging in May-June. Univoltine. The egg gallery is single-shafted, vertical, up to 20 cm. The larval tunnels are packed densely. Lives under the bark of thinner stems or thicker branches of birch (Betula). Eurosiberian species, occurs in the Carpathian basin, but not too common.

 

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