Morphological separation of Tomicus piniperda and T. destruens (Coleoptera: Curculionidae: Scolytinae): new and old characters
Tomicus piniperda and T.destruens are sibling species which are extremely difficult to separate by morphological characters.Although several papers report differences between the two species, many characters need confirmation or better description.Moreover, new morphological Water Hose Coupler characters are required for correct species determinati