General Softwoods and
Solid timber Sapwood only
affected, unless wood rot present when it may be found in heartwood also. Very rare in tropical hardwoods.
Frequent in older furniture and all constructional timbers,
particularly around loft access, timbers in contact with solid walls, under stairs,
cupboards and other areas affected by damp.
Panel products Attacks
only old birch, beech and oak plywoods with animal based adhesive
(blood, fish or casein). Modern plywoods and all other panel
products immune, though may be penetrated by emerging adults.
Circular, 1 - 2 mm diameter (old, extinct damage often
accompanied by fine pinholes of parasitic wasps).
1 - 2mm diameter. Often extensive, random orientation
but mainly in the direction of the grain. Often exposed on
surface of floorboards by general wear.
Bore dust Cream-coloured,
lemon-shaped pellets. Gritty when rubbed between fingers.
Likely misidentifications Bark borer beetle, pinhole
borer beetle, Ptilinus beetle, Lyctus powderpost beetle, Deathwatch
beetle, moths, wood-boring weevils.