There are different colour variants of this beetle, some having yellowish elytra, some blue. The life cycle is the same as that of the preceding species with the sole exception that the present species only attacks hardwoods, such as beech, birch and oak. In a house the first sign will normally be the adult beetles, seen crawling around the room, and as they must necessarily have come from bark-covered timber the first place to search is the log basket. The exit- holes are oval (p. 118).
This beetle is in no way a menace in the house, but if hardwood is being kept for carpentry work it is always advisable to remove the bark, as an attack by these beetles renders the outer layer of timber unusable.