This is the best time of year to see Britain’s largest insect, the stag beetle, Lucanus cervus, with its distinctive jaws that look like antlers, hence its common name.

The males, which reach up to 75mm long (3ins) look formidable but are completely harmless. At this time of year they fly at dusk looking for much smaller females. If you are very lucky you will see two males, jaws locked in combat, jousting for a female.

Sadly, they are an endangered species and have disappeared from some European countries, so the UK population is important. They live mostly in the south, particularly around London because of the warmer climate, but can also be found in northern England, albeit rarely. A stag beetle hunt is being held by the People’s Trust for Endangered Species to map as many of their habitats as possible.