What's Eating Your Collection?

Woodworm / Furniture beetle Anobium punctatum

Adult Furniture beetle, also called Woodworm 

Size: 2-5mm

Shape: longish oval

Colour: dark brown (dull)

Antennae: medium, last few segments triangular

Distinguishing features: head not visible from above, thorax has distinct hump when seen from the side, lines of punctures on the wing cases. Life cycle can be as long as five years.
The adults are much smaller than Deathwatch beetle.

Larvae eat: sapwood of hardwoods, plywood, occasionally books

Damage is: tunnels and small (1.5-2mm) round exit holes, copious gritty frass. The frass forms conical piles if undisturbed.

Adults eat: very little but will bite their way out of the wood.

Other info: only found in objects and building timbers when humidities are high, above 60%. Damage to sapwood can be severe but heartwood is very rarely attacked. Adults will fly to the light in spring and early summer when it is warm. 

Can be confused with Biscuit beetle.
Side view showing hump
Anobium top view
Anobium drawing
Anobium drawing side view

Woodworm / Furniture beetle Anobium punctatum

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Side view showing hump
Anobium top view
Anobium drawing
Anobium drawing side view