All Holometabolous Insect Orders

Beetles are insects that form the order Coleoptera (), in the superorder Holometabola.

Lepidoptera ( LEP-ih-DOP-tər-ə) or lepidopterans are an order of winged insects which include butterflies and moths.

Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants.

A fly (pl. flies) is an insect of the order Diptera (from Ancient Greek δι- di- 'two' and πτερόν pteron 'wing'), named for the single pair of wings.

The caddisflies (order Trichoptera) are a group of insects with aquatic larvae and terrestrial adults.

The insect order Neuroptera, from Ancient Greek νεῦρον (neûron), meaning "nerve", and πτερόν (pterón), meaning "wing", also known as net-winged insects, includes the lacewings, mantidflies, antlions, and their relatives.

Megaloptera is an order of insects. It contains the alderflies, dobsonflies and fishflies, and there are about 300 known species.

Snakeflies are a group of predatory insects comprising the order Raphidioptera, from Ancient Greek ῥαφίς (rhaphís), meaning "needle", and πτερόν (pterón), meaning "wing", with two extant families: Raphidiidae and Inocelliidae, consisting of roughly 260 species.

Flea, the common name for the order Siphonaptera, includes 2,500 species of small flightless insects that live as external parasites of mammals and birds.

Strepsiptera (), from Ancient Greek στρέψις (strépsis), meaning "turning around", and πτερόν (pterón), meaning "wing", are an order of insects with eleven extant families that include about 600 described species.

Mecoptera (from Ancient Greek μῆκος (mêkos), meaning 'length', and πτερόν (pterón), meaning 'wing') is an order of insects in the superorder Holometabola with about six hundred species in nine families worldwide.