Phymatodes testaceus
Violet tanbark beetle
Description
It is a relatively narrow beetle, 6 to 17 mm long. It can be very numerous and extremely variable in color. Often brown, brownish to almost black with a metallic blue sheen. The characteristic features are the thick thighs. Adults fly from June to July. Adults are very active and they are good flyers. Females lay eggs in the crevices of the bark. The larvae gnaw their corridors first under the bark, later they go 3 to 7 cm into the wood, where they pupate. Galleries can be found up to 4 cm in the wood. Excavation holes are elongate. There is one generation per year, in warm areas two generation per year.
Symptom
Elliptical corridors under the bark and in wood. Excavation holes are elongate.
Tree Species: Beech, Oak, Chestnut, Hornbeam
Part of a plant- attacked: Tree trunk, Branch
Pest significance: Not harmful
Pest Category: Insects
Invasive Species: No
Present in EU: Yes
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There are a total of 3 observations of the species in the system



