Amateur
Entomologists'
Society

Have you seen a summer chafer?

Published: 04 July 2009

Warm summer evenings between June and August are the perfect time to see summer chafers (Amphimallon solstitialis) in Britain. These large beetles are around 2cm in length and often buzz around your garden in an erratic fashion at dusk.

A photograph of a summer chafer _Amphimallon solstitialis_

A photograph of a summer chafer Amphimallon solstitialis.

The larvae of summer chafers feed underground on the roots of grasses and other plants. They can take two to three years before they are ready to pupate into the adult beetle. Pupation also takes place underground.

When the time is right the adults emerge and males swarm round tall objects such as houses and trees. After finding a female they mate and the female then lays her eggs in the ground.

Unfortunately the numbers of summer chafers are in decline although where they do occur they can appear in large numbers.

Be sure to keep an eye out for summer chafers.


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