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Date: 2014-03-19 15:29:13Protostome Zoology Bark beetle Tomicus piniperda Mountain pine beetle European spruce bark beetle Scolytus Dendroctonus Beetle Curculionidae Woodboring beetles Phyla | Forest Insect & Disease Leaflet 176 U.S. Department of Agriculture • U. S. Forest ServiceDocument is deleted from original location. Download Document from Web Archive |