Classification of insects

1. Apterygotes: No wings

• Eg: Protura, Diplura, Collembola, Thysanura

a) Protura : Proturans

b) Diplura : Japygids

c) Collembola: Spring tails

d) Thysanura: Silver fish

2. Pteryogotes : With wings and metamorphosis

A. Division : Exopterygota

• Nymph having wings pads and hemimetabolous

1. Ephemenoptera : mayfly
2. Odonata: Dragon flies and Damselflies
3. Placoptera: Stone flies
4. Grylloblattoidea: Grylloblata, Ice bug
5. Orthoptera: Grasshopper, Cricket.
6. Phasmida: Stick insect and leaf insect.
7. Dermaptera: Ear wings
8. Embioptera: Web spinners
9. Dictyoptera: Cocokroach, Mantids
10. Isoptera: Termites or white ants
11. Psocoptera: Book lice
12. Mallophaga: Bird lice
13. Anoplura: Body louse, Cattle louse
14. Hemiptera: Bugs
15. Homoptera: Aphids, Hoppers, Lac insects
16. Thysanoptera: Thrips
17. Zoraptera: Zorapterans

B. Division: Endopterygota

• Holometabolas and wings develop internally.

1. Neuroptera: Ant lions
2. Lepidoptera: Butter flies
3. Diptera: Housefly, Mosquito
4. Siphonaptera: Fleas
5. Hymenoptera: Honeybee, Mustard saw fly
6. Strepsiptera: Stylops
7. Coleoptera: Beetle
8. Mecoptera: Scorpion flies
9. Trichoptera: Candis flies