Any insect or invertebrate that feeds on or otherwise attacks wood.
1938, Norman Lindsay, Age of Consent, 1st Australian edition, Sydney, N.S.W.: Ure Smith, published 1962, →OCLC, page 193:
In the space about the hut her search went on, lifting old tins and boxes and timber to disturb the flat grey woodbugs under them, but finding nothing else there.
