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Polygraphus Erichson, 1836 - (four-eyed bark beetles)
This genus of bark beetles contains around 100 species and is widely distributed in temperate and subtropical regions. The adults have their compound eyes divided and appear to have 4 eyes. They are about 2-3 mm long and mainly attack spruce trees. Several are regarded as pests, like Polygraphus poligraphus and P. rufipennis.
Type species: Polygraphus pubescens
Currently, the following species have been entered into the system: