Stag Beetle

ColeopteraLucanidae
OrderColeoptera
FamilyLucanidae
Size3-8 cm (males)
HabitatEuropean forests, woodland
DietTree sap, fruit

About the Stag Beetle

Males have enlarged mandibles resembling stag antlers, used for fighting rivals and attracting mates. Despite their fearsome appearance, they are harmless to humans. They spend 3-7 years as larvae underground feeding on rotting wood, then live only a few weeks as adults. Populations are declining due to loss of dead wood habitat. They are legally protected in several European countries. In Japan, stag beetle fighting is a traditional hobby, and rare specimens sell for thousands of dollars.

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