From Wikipedia, the free encyclopedia
The old-house borer (Hylotrupes bajulus) is a species of wood-boring beetle in the family Cerambycidae (longhorn beetles). Contrary to its name, it is more often found in new houses; this is in part because new home construction may use wood infected with the beetle's eggs.
Old-house borers prefer seasoned softwoods, and particularly pine. Only the larvae feed on the wood. Larvae take two or three or more years to mature, depending on the moisture content of the wood. Larvae usually mature in the spring, and the mature adults then cut holes 6–10 mm (¼ to 3/8 in) in diameter to exit the wood. Adults are most active in the summer.
