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Featured species

Text © K. Reißmann, T. Hörren, M. Stern, F. Bötzl and C. Benisch

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09.10.2015
Cryptorhynchus lapathi (L., 1758)
Cryptorhynchus lapathi
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 C
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The 5 to 8.5 mm large poplar and willow borer Cryptorhynchus lapathi (family Curculionidae) is the only representative of the genus in Germany. The speciose genus is globally present and in bad need of a thorough revision. Cryptorhynchus lapathi is known to occur all over Europe and parts of Asia as well as in North America. As its vernacular name suggests its main host trees are willow and poplar. The crepuscular beetles are capable of flight and hatch in August. The feed on their host plants until October and hibernate in their burrows or in leaf litter on the ground. Oviposition takes places in spring of the following year. The larvae hatch in June and go into diapause in their first larval instar until April of the following year. The remaining development cycle takes place until August. In willow cultures the beetle can become a pest. It is common throughout Germany and not endangered. (CB)


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