The longhorn beetle can be found in several variations of species from Western Europe through to Central Asia.   The larvae can have a lifecycle from two to about ten years and the mature adult beetle can grow from about 10-12mm in Western Europe up to 25-30mm in Central Asia.    The larvae prefers to bore deep down in the heartwood and is mostly resistant to chemical treatments.   They thrive on moisture, but not wet or rotten timbers.   They prefer to live in oak, elm or harder softwoods such as some pines and spruce.   Moisture content needs to be lowered to under 15% to kill them and prevent future infestation.