Interactive Bugs

The Amazon · Beetles

Titan beetle

Titanus giganteus

A huge, flat, dark brown beetle with long antennae and powerful jaws.

Size
Up to 16.5cm long
Look for it
January to April, then October to December
Where
Rainforest in the Amazon basin and the Guianas

My spotter's list

Marches after you, jaws working. Move your pointer and see.

When to look

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Titan beetle

Good to know

Six things about the titan beetle

Big

One of the largest beetles

At more than sixteen centimetres, not counting its antennae, it is one of the biggest beetles on Earth.

Jaws

It can snap a pencil

Its jaws are strong enough to cut through a pencil, and can draw blood.

Fast

The adult never eats

The adult does not feed. It lives for a few weeks on what it stored as a grub.

Grub

Nobody has seen the grub

The grub has never been found. From the size of its tunnels in dead wood, it is thought to be as big as a sausage.

Hiss

It hisses

If threatened it hisses, by forcing air out of the breathing holes in its sides.

Light

Only the males fly

Males fly to lights at night in search of females. The females are hardly ever seen.

The real thing

Photos of the titan beetle

Titan beetle, photo 1
Photo: Didier Descouens, CC BY-SA 4.0, Wikimedia Commons
Titan beetle, photo 2
Photo: Didier Descouens, CC BY-SA 4.0, Wikimedia Commons
Titan beetle, photo 3
Photo: Natural History Museum: Coleoptera Section, CC BY 2.0, Wikimedia Commons

Photos are from Wikimedia Commons, used under the free licences shown. They have been resized, and cropped where they appear in link previews.

Out and about

How to spot one

Almost all sightings are of males that come to bright lights at the forest edge during the rainy season.

Lend a hand

How to help

It needs dead wood in untouched rainforest. So little is known about it that protecting the forest is the only way to protect the beetle.

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