What Is The Biggest Bug In The World?

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What is the biggest bug in the world? The biggest bug in the world is a matter of some debate. The title contains a few contenders, including the giant weta, elephant beetle, and goliath beetle. The giant weta is the heaviest insect, weighing around 2 ounces. However, there are reports of elephant beetles that weigh up to 1 pound- making them heavier than the weta. 

Continue reading to find out more about the biggest bug in the world. 

What is the biggest bug in the world?

Goliath Beetle, Goliathus. The largest beetle on a tree trunk.

The answer to the biggest bug in the world is not certain. Some say it is the Goliath beetle, which can weigh up to 3 ounces and have a wingspan of over 7 inches. Others argue that the Hercules beetle is larger, with a body length of up to 4 inches and a horn size of up to 2 inches.

There are many contenders for the title “biggest bug in the world,” but no definitive answer exists. However, one certain thing is that insects are smaller today than they have been in the past because their air pipe has limited their size.

The air pipe restricts insects from growing to huge sizes, and as oxygen levels in the atmosphere have decreased over time, so too has the average size of insects.

What are the largest, longest insects or bugs in the world?

Hercules Beetle

Hercules Beetle

The Hercules beetle is the largest beetle in the world. It can measure up to 7 inches long, and its horns make up nearly half its body length. The metamorphosis stages last about 5 inches.

Atlas Moth

Atlas Moth

The Atlas Moth can reach 12 inches wingspan and is the largest moth. The caterpillar starts as an egg, then becomes a worm and a moth. It is vulnerable to predators, including lizards, birds, and ants.

The moth can spray a powerful irritant from more than a foot away by spraying patterns on their wings.

The Atlas moth gets its name from the Greek god Atlas. This moth has a distinctive pattern on its wings that resembles a snake’s head.

And interestingly, this moth can drop to the ground and shake its wings to scare away predators. It also mimics a snake’s head movements to confuse predators.

Titan Beetle

what is the biggest bug in the world

The titan beetle is the largest in the world. It is found in the Amazon rainforest and has a much bigger body than Hercules beetles. When threatened, it makes a hissing sound and attempts to defend itself.

Giant Burrowing Cockroach

Giant Burrowing Cockroach

The rhinoceros cockroach is the largest in the world. This bug doesn’t have wings and is considered to be a pet. It’s found in Australia and can live for as long as ten years. It can grow to over 3 inches in length.

Mydas Flies

Mydas Flies

The Mydas fly is a family of flies that contains nearly 500 species. Many of these species have evolved the ability to mimic stinging wasps and bees. This adaptation serves as a deterrent to predators. The largest species is Gauromydas heros, with a wingspan of 3.9 inches.

Tarantula Hawk

Tarantula Hawk

The tarantula hawk that preys on tarantulas is a giant wasp. They are ferocious hunters with specially adapted legs that help them catch their prey. Their stinger is long and painful and is rated as one of the most painful in the world.

Stick Insects

Stick Insects

The biggest bug in the world is the Australian stick insect, which can measure up to 25 inches long. The next two largest are the Asian and Indian stick insects, which measure 22 inches long.

Giant Weta

Stephens Island weta or Cook Strait giant weta on Maud Island predator-free sanctuary. These huge endangered insects are endemic to New Zealand.

The giant weta can weigh up to 5 ounces and cannot fly because of its massive weight. It is heavier than a small bird such as a sparrow. Giant wetas have body lengths that can go as far as four inches, excluding the antenna and the head.

What are the world’s biggest and largest insects?

There are many different types of insects worldwide, some of which are much bigger than others. The largest beetle in the world is 17 cm long, while the Goliath beetle is even larger at 17 cm.

Queen Alexandra’s birdwing has a wingspan of 9 cm, making it one of the biggest butterflies in the world. Interestingly, the world’s largest insects are not that big compared to other animals on this planet.

The tarantula hawk wasp has a wingspan of 2 inches or 5 cm, and the big water bug is only 10cm long. 

What is the gigantic beetle?

The gigantic beetle is the Goliath beetle. This beetle can grow up to 6 inches long and can be found in Africa’s tropical forests. These beetles feed primarily on tree sap and fruit but have also been known to eat carrion (dead animals).

What are the largest beetles?

The Titan beetle is the largest known insect species in the world. It is typically found in: Colombia, Ecuador, Peru, Bolivia, Guianas, and north-central Brazil. They can grow up to 6.5 inches in length.

What is the world’s biggest cockroach?

The world’s biggest cockroach is the Megaloblatta longipennis. This cockroach can grow up to 9.7 cm in length and has a wingspan of up to 20 cm. They are found in Central America and parts of South America.

What is the longest living insect?

There is no definitive answer to this question as many different types of bugs and insects worldwide exist.

However, some of the longest-living insects include the queen of termites, who can live for up to 50 years, and Lepidoptera fossils found in England, estimated to be 190 million years old. Scientists believe some Lepidoptera species may live for up to 100 years.

What are the largest prehistoric insects?

The largest prehistoric insect was Meganeuropsis permiana. This dragonfly had a wingspan of up to 75 cm and could weigh up to 2.5 grams. It is believed to have lived about 275 million years ago in the late Permian era.

What’s the biggest and largest flying insect?

The largest flying insect is often considered Queen Alexandra’s birdwing or the Atlas moth. Queen Alexandra’s birdwing is from Papua New Guinea and can have a wingspan up to 11 inches. The Atlas moth is from Southeast Asia and has a wingspan of up to 10 inches.


Insects are invertebrates that belong to the species of arthropods. This species includes creatures with an exoskeleton, a segmented body, and jointed appendages. Insects are easily the most numerous creatures on Earth and come in various shapes and sizes.

While there is no definitive answer to the biggest bug in the world, it can be estimated using physical weight or length as a reference point.

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.