Saperda scalaris
Ladder-marked longhorn beetle
It is one of the most colourful species from among the representatives of the genus in Central Europe. Truly exotic looking adults have black elytra with a variable yellow or green-yellow tomentose pattern. The adult beetle is 12-18 mm long. The larva is up to 25 mm long. It lives in galleries under the bark of dying trees, where it develops for 2 years. To pupate, it bores more deeply into wood.
The yellow-green drawing on a black background is variable.
Tree Species: Oak, Willow
Part of a plant- attacked: Tree trunk
Pest significance: Less harmful
Pest Category: Insects
Invasive Species: No
Present in EU: Yes
Pest group: Insect
Depth of damages: Bark, Under bark only, Up to 0,5 cm depth, Up to 2 cm depth, Up to 5 cm depth
The extent of damage: Whole trunk
Prevalence in Europe: Common
Damaged products: Firewood, Fresh timber logs (water still in the sapwood), Furniture, Lumber, boards and prisms, Wooden house constructions
Roundwood size: Diameter 50+
Wood discoloration: No
Exit holes: Round
Pest subcategory: Wood-boring insect
Similar pests
Cossus cossus
Saperda populnea
