Structural-timber
Guides
Xestobiini
Xestobiini is a tribe of small beetles within the family Ptinidae (spider beetles and deathwatch beetles), subfamily Ernobiinae. Members of this tribe are wood-boring beetles that develop in dead or decaying wood. The tribe was established by Böving in 1927 and includes genera such as Xestobium. These beetles are characterized by their cylindrical body form and association with hardwood substrates.
Xestobium
death-watch beetles
Xestobium is a genus of wood-boring beetles in the family Ptinidae, commonly known as death-watch beetles. The genus contains approximately 13 described species, with Xestobium rufovillosum being the most studied due to its economic significance as a pest of structural timbers in historic buildings. These beetles are renowned for the distinctive tapping sound produced by adults, which serves as a mating signal and has inspired their common name. The genus is primarily associated with decayed hardwoods, particularly oak, and has a prolonged life cycle spanning multiple years.