Apterygota

Definition

A subclass of primitive, wingless insects that includes silverfish and firebrats. These insects are characterized by their lack of wings throughout their life cycle.

Etymology

From Greek 'a-' meaning 'without,' and 'pteryx,' meaning 'wing'.

Example

Apterygota, such as the silverfish, are often found in moist environments and are known for their rapid movements.

Synonyms

• Wingless insects

Related Terms

• Thysanura
• Archaeognatha
• Insecta
• Entognatha

Usage Notes

Apterygota are among the earliest forms of insects and lack the metamorphic changes seen in more advanced insects. They undergo ametabolous development, which means they hatch as miniature versions of the adults and grow through a series of molts.