Dryocoetes betulae

Dryocoetes • Scolytidae • Curculionoidea • Coleoptera • Insects (plant pests) • pests-diseases-weeds

Dryocoetes betulae (click on image to enlarge it)
Author(s): J.R. Baker & S.B. Bambara, North Carolina State University
Source: IPM Images

Dryocoetes betulae Hopkins - (birch bark beetle)

This bark beetle infests mainly paper birch (Betula papyrifera) in North America. However, there are also records of infestations of other broad-leaved trees. Mainly weak and dying trees are attacked and this is initiated by a male, followed by 2-3 females (Furniss & Kegley, 2006). Irregular galleries are formed by the adults and the larvae.

Publications covering Dryocoetes betulae

The Canadian Entomologist (2007) 139, 378-396
C.G. Majka, R.S. Anderson, D.F. McAlpine and R.P. Webster (2007)
The weevils (Coleoptera: Curculionoidea) of the Maritime Provinces of Canada, I: New records from New Brunswick

Environmental Entomology (2006) 35, 907-911
Malcolm M. Furniss and Sandra J. Kegley (2006)
Observations on the biology of Dryocoetes betulae (Coleoptera: Curculionidae) in paper birch in northern Idaho

• Other images of Dryocoetes betulae (IPM Images - click to enlarge)
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  antenna

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  foretibia

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  posterior end