Beetles in the Firewood in France
Every year in France , usually from about February, some people find their houses invaded by small red or reddish-brown beetles. This is by no means everywhere and many people will never see one, however where they are present they can sometimes be observed in relatively large numbers. The creature concerned is a Longhorn Beetle, Pyrrhidium sanguineum, although being only 8 to 12 mm it is rarely recognised as being one. Known in English as Welsh Oak Longhorn Beetle and its common French name is La Callidie Sanguine). Females lay eggs in crevices in dead or freshly cut wood with bark that is exposed to the sun from March – June and are polyphagous in nature using a range of deciduous trees, but with a preference for oak ( Quercus spp.). Larvae burrow into the timber making galleries up to 60cm in length where, when fully grown, they pupate. They can’t use seasoned timber and usually have an annual life cycle, occasionally this can be two years. When ...