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Scolytid beetles include the bark and ambrosia beetles. These are small beetles, 1.5 to 8 mm in length, cylindrical shaped and usually brown to black in color. The larvae are small, white, C-shaped, legless grubs. The head and mandibles are dark in color. Most of the economically important scolytids are in three genera: Dendroctonus, Ips and Scolytus.
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