Bark longhorn Phymatodes

Adult beetle

Size: 15-20mm

Shape: long beetle shape

Colour: red with metallic wing cases, which vary in colour

Antennae: long

Distinguishing features: typical longhorn beetle shape.

Larvae eat: the nutritious layer of wood between the bark and the cambium layer

Damage is: large oval tunnels in the wood just under the surface of the bark. These are packed with cylindrical frass. Exit holes are large (3-4mm) and oval in shape.

Adults eat: very little.

Other info:

There are hundreds of species of longhorns which attack growing and recently felled timber. This is one of the most common in houses in the UK as it is often found emerging from logs brought into homes.

Bark longhorn Phymatodes