Surveyors Fotofile: House Longhorn beetle damage

29 March 2010

House Longhorn beetle (Hylotrupes bajulus)

Today’s photo looks at damage caused by one of the least common types of woodworm found in the UK  – House Longhorn beetle.

Cross section showing House Longhorn damage

House Longhorn beetle is seldom found outside of north west Surrey although it has been found to a much lesser extent in parts of London. Isolated outbreaks of House Longhorn have been found in other parts of the UK as a result of infested packing cases. Principally the House Longhorn beetle is is found in roof timbers where it can cause structural damage by feeding on the sapwood of softwood species of timber. To control the spread of the House Longhorn beetle  local Building Regulations require that new roof timbers are pre-treated with an appropriate preservative.

What does the House Longhorn beetle look like?

House Longhorn BeetleThe larvae of the House Longhorn beetle usually mature in the spring months. The mature House Longhorn beetles eat their way out of the timber, in the process creating a hole  between 6-10 mm in diameter. These holes resemble the holes left by the most common form of woodworm, Common Furniture Beetle, with the exception that the holes are significantly larger. The head and body are covered with greyish coloured hairs and two shiney black spots that resemble eyes. To learn more about the life cycle of woodworm view check out of woodworm life cycle animation.

What should I do if I suspect I have a House Longhorn beetle infestation?

Timberwise are experts in treating woodworm of all kinds. With over 4 decades experience in treating woodworm you can be sure that Timberwise can treat your House Longhorn beetle problem quickly and effectively. To arrange a woodworm survey couldn’t be easier simply call 0800 288 8660 or complete our on-line Woodworm Survey Request form.