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Phymatodes testaceus (commonly known as the tanbark borer, or the violet tanbark beetle) is a transpalearctic polymorphic species of beetle in the subfamily Cerambycinae in the longhorn beetle family. The P. testaceus imago is typically 6–16 mm in length. Their eggs are 1 mm long, and in athwart 0.5 mm. Larvae of the species are 10–18 mm long and 2.1 mm wide. Pupa are 9 mm long, and the abdomen is 2.8 mm wide. Distribution of these beetle extends from the European Atlantic coastline to the Southern Ural Mountains, from southern Sweden and Norway to North Africa and Syria. It is also distributed throughout Japan and North America. Larvae develop in and under the bark of various deciduous tree species, causing damage. Larvae pupate in the spring. The beetle’s life cycle lasts one year in central and southern parts, and two years in northern climes.
== References ==
The tanbark borer, also known as the violet tanbark beetle, is a type of beetle found in various regions across the world. They are typically small in size, with adults measuring between 6-16 mm in length. The larvae of these beetles can cause damage to deciduous trees by feeding under the bark. The beetle's life cycle can last either one year in warmer regions or two years in colder areas. They are commonly found in Europe, North Africa, Japan, and North America.
Der Variable Schönbock oder Veränderlicher Scheibenbock, Rotgelber Scheibenbock (Phymatodes testaceus) ist ein Käfer aus der Familie der Bockkäfer (Cerambycidae).
Der Variable Schönbock ist ein Käfer, der 8 bis 16 Millimeter lang ist und in verschiedenen Farben vorkommt. Er lebt in Europa, Klein- und Vorderasien, Kaukasus, Nordafrika und Nordamerika. Die Larven entwickeln sich in toten Bäumen und fressen unter der Rinde. Die Käfer sind nachtaktiv und verstecken sich tagsüber. Sie können Schäden an Eichenstämmen verursachen, aber greifen kein Bauholz an.