Insects
Orders of Insects

Blattodea (Cockroaches and Termites)
Derived from the Greek word for "cockroach"
Type of Metamorphosis: Simple: Incomplete

Coleoptera (Beetles)
"Sheath wing"
Type of Metamorphosis: Complete

Dermaptera (Earwigs)
"Skin wing"
Type of Metamorphosis: Simple: Incomplete

Diptera (Flies)
"Two wing"
Type of Metamorphosis: Complete

Ephemeroptera (Mayflies)
"Short lived wing"
Type of Metamorphosis: Simple: Incomplete

Hemiptera (True Bugs)
"Half wing"
Type of Metamorphosis: Simple: Gradual

Hymenoptera (Bees, Wasps, and Ants)
"Membrane wing"
Type of Metamorphosis: Complete

Lepidoptera (Butterflies and Moths)
"Scale wing"
Type of Metamorphosis: Complete

Mantodea (Mantids)
Derived from Greek word for "prophet"
Type of Metamorphosis: Simple: Incomplete

Mecoptera (Scorpionflies)
"Long wing"
Type of Metamorphosis: Complete

Megaloptera (Alderflies, Dobsonflies, Fishflies)
"Large wing"
Type of Metamorphosis: Complete

Neuroptera (Net-winged Insects)
"Tendon/cord/nerve wing"
Type of Metamorphosis: Complete

Odonata (Dragonflies and Damselflies)
Derived from the Greek word for "tooth"
Type of Metamorphosis: Simple: Incomplete

Orthoptera (Crickets and Grasshoppers)
"Straight wing"
Type of Metamorphosis: Simple: Gradual

Phasmida (Walking Sticks)
Derived from Greek word for "apparition"
Type of Metamorphosis: Simple: Gradual

Plecoptera (Stoneflies)
"Braided or weaved wing"
Type of Metamorphosis: Simple: Incomplete

Trichoptera (Caddisflies)
"Hair wing"
Type of Metamorphosis: Complete

Zygentoma (Silverfish)
"Zyg-" is derived from Greek meaning "yoked" or "joined." "Entoma" is derived from Greek meaning "notched" or "cut into sections" (for which the Greek word for insect is derived).
Type of Metamorphosis: Simple: None