Why are they called stag beetles?

Males' jaws look like deer antlers

Stag Beetle Quiz: Giant Jaws, Wrestling Males and Dead Wood

This stag beetle quiz flies through a warm summer evening with Europe's biggest beetle. Play 10 interactive questions on huge mandibles shaped like deer antlers, males wrestling and flipping rivals, females with smaller but stronger bites, larvae living for years in rotting wood, short adult lives, dusk flights and why leaving dead wood helps them.

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🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Name
Why are they called stag beetles?
Jaws
What are the antler-like parts?
Fight
How do males use their jaws?
Bite
Which sex has the stronger bite?
Larvae
Where do stag beetle larvae live?
Years
How long can larvae take to grow?
Fly
When do males often fly?
Size
Which country's largest beetle is the stag beetle?
Help
How can people help stag beetles?
Food
What do adults mainly feed on?

Explanations: answer key for all 10 questions

Q1: Why are they called stag beetles?
Answer: Males' jaws look like deer antlers
Stag means male deer.
Q2: What are the antler-like parts?
Answer: Mandibles, or jaws
They are oversized in males.
Q3: How do males use their jaws?
Answer: To wrestle and flip rivals
Contests happen on branches.
Q4: Which sex has the stronger bite?
Answer: Females
Male jaws are too big for strength.
Q5: Where do stag beetle larvae live?
Answer: In rotting wood
They feed on decaying wood.
Q6: How long can larvae take to grow?
Answer: Several years
Adults live only weeks.
Q7: When do males often fly?
Answer: At dusk in summer
They seek females.
Q8: Which country's largest beetle is the stag beetle?
Answer: Britain
It is protected there.
Q9: How can people help stag beetles?
Answer: Leave dead wood in gardens
Log piles make nurseries.
Q10: What do adults mainly feed on?
Answer: Sap and fruit juices
Many barely eat at all.

Antlers on a Beetle

Stag beetles get their name from the males' huge mandibles, which look like a deer's antlers. In Europe, the stag beetle is among the largest beetles, and in Britain it is the biggest, protected because it has become scarce in many areas.

Males use their jaws to wrestle rivals, grabbing and flipping them off branches in contests over females. The jaws are so large that males cannot bite hard, while females, with smaller jaws, have a stronger bite. Males often fly at dusk on warm summer evenings, searching for mates, and adults live only a few weeks, feeding little on sap and fruit juices.

Most of a stag beetle's life is spent as a larva in rotting wood underground, growing for several years before becoming an adult. Leaving dead wood and log piles in gardens and parks creates nurseries that help stag beetles survive.

What This Quiz Teaches

Insect fans will enjoy these questions.

Why they are named stag beetles
How males use their jaws
Where larvae live
When adults fly
How people can help

Did You Know?

Larvae are large and white.
Adults are clumsy fliers.
Japan has popular stag beetle hobbies.
Magpies eat many adults.
Their wings fold under hard wing cases.