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Top 10 Biggest Insects in the World

An insect is a very small animal with exoskeleton or a hard, shell-like covering on the outside of its body made up of chitin. They found in everywhere in the world from the oceans to polar ice caps and mighty mountains to hot volcanic springs. In this article, we are giving the list of top 10 biggest insects in the world on the basis of their body size.
Apr 25, 2019 16:10 IST
Biggest Insects in the World

Insects are invertebrates and belong to the largest group within the arthropod phylum. The word "insect" comes from the Latin word insectum, meaning "with a notched or divided body", or literally "cut into", from the neuter singular perfect passive participle of insectare because insects appear "cut into" three sections.

They found in everywhere in the world from the oceans to polar ice caps and mighty mountains to hot volcanic springs. Their outer body shell is called exoskeleton which is made up chitin and body is categorised into three segment- head, thorax, and abdomen. They have pair of antennae on the top their head.

Importance of insect in the Environment

1. Ecological importance: They perform many important functions like pollination, act as decomposer etc.

2. Economic importance: They produce useful substances like honey, wax, lacquer, and silk.

3. Important part of food web: It is used as food by amphibians, reptiles, birds, and mammals; sometimes by human.

4. Medicinal importance: Some of the insects are used for the medicinal purposes. For example- Gangrene.

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Biggest Insects in the World

The top 10 list of biggest insects in the world are given on the basis of their body size.

10. Goliath Beetle

Scientific name: Goliathus

Size: 60–110 millimetres (2.4–4.3 in)

Found in: Africa

9. Giant Water Bug

Scientific name: Lethocerus americanus

Size: 2-12 cm (0.8 in to 4.5 in)

Found in: Asia

8. Tarantula Hawk

Scientific name: Pompilidae

Size: 5 cm (2 in)

Found in: Southeast Asia, Africa, Europe, Australia, and the Americas.

7. Acteon Beetle

Scientific name: Megasoma actaeon

Size: 5–12 centimetres (2.0–4.7 in)

Found in: South America, particularly in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, and Venezuela

6. Queen Alexandra's Birdwing

Scientific name: Ornithoptera alexandrae

Size: 8 cm (3.1 in)

Found in: Coastal rainforest near Popondetta, Oro Province, Papua New Guinea

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5. Giant Burrowing Cockroach

Scientific name: Macropanesthia rhinoceros

Size: 8 cm (3.1 in)

Found in: America, Australia

4. Giant Weta

Scientific name: Deinacrida

Size: 10 cm (4 in)

Found in: New Zealand

3. Titan Beetle

Scientific name: Titanus giganteus

Size: 16.7 cm (6.6 in)

Found in: Rain forests of Venezuela, Colombia, Ecuador, Peru, the Guianas, and north-central Brazil.

2. Atlas moth

Scientific name: Attacus atlas

Size: 25–30 cm (9.8–11.8 in)

Found in: South Asia, East Asia, and Southeast Asia, including Borneo

1. Giant Stick Insects

Scientific name: Extatosoma tiaratum

Size: 20 cm (5 to 8 inches)

Found in: Queensland and New South Wales (Australia), New Guinea

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Top 10 Biggest Insects in the World

Name of Biggest insect (Decreasing order)

Description

1. Giant Stick Insects

Scientific name: Extatosoma tiaratum

Size: 20 cm (5 to 8 inches)

Found in: Queensland and New South Wales (Australia), New Guinea

2. Atlas moth

Scientific name: Attacus atlas

Size: 25–30 cm (9.8–11.8 in)

Found in: South Asia, East Asia, and Southeast Asia, including Borneo

3. Titan Beetle

Scientific name: Titanus giganteus

Size: 16.7 cm (6.6 in)

Found in: Rain forests of Venezuela, Colombia, Ecuador, Peru, the Guianas, and north-central Brazil.

4. Giant Weta

Scientific name: Deinacrida

Size: 10 cm (4 in)

Found in: New Zealand

5. Giant Burrowing Cockroach

Scientific name: Macropanesthia rhinoceros

Size: 8 cm (3.1 in)

Found in: America, Australia

6. Queen Alexandra's Birdwing

Scientific name: Ornithoptera alexandrae

Size: 8 cm (3.1 in)

Found in: Coastal rainforest near Popondetta, Oro Province, Papua New Guinea

7. Acteon Beetle

Scientific name: Megasoma actaeon

Size: 5–12 centimetres (2.0–4.7 in)

Found in: South America, particularly in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Panama, Peru, Suriname, and Venezuela

8. Tarantula Hawk

Scientific name: Pompilidae

Size: 5 cm (2 in)

Found in: Southeast Asia, Africa, Europe, Australia, and the Americas.

9. Giant Water Bug

Scientific name: Lethocerus americanus

Size: 2-12 cm (0.8 in to 4.5 in)

Found in: Asia

10. Goliath Beetle

Scientific name: Goliathus

Size: 60–110 millimetres (2.4–4.3 in)

Found in: Africa

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