Asemum striatum

Asemum striatum, the black spruce borer, is a beetle species belonging to the family Cerambycidae, subfamily Spondylidinae.
This beetle is present in most of Europe, the East Palearctic realm, the Near East, Nearctic realm, and Indomalayan realm.
The adults grow up to and can be encountered from May through August, completing their life cycle in two to three years. Head and pronotum are usually black, while elytrae are black or brownish, with various longitudinal ridges.
They are polyphagous in coniferous trees. Larvae develop under bark of host plants, later in dead branches and stumps of trees.