Dryocoetes betulae
Dryocoetes autographus
Wood ( in Wood & Bright 1992: 572) state that North American and Eurasian populations are distinguishable, but not on any specific caracter (‘statistically distinguishable’).
Read MoreWood ( in Wood & Bright 1992: 572) state that North American and Eurasian populations are distinguishable, but not on any specific caracter (‘statistically distinguishable’).
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