|Usual Number of Tarsal Segments||1 to 5|
|Where usually found||In debris or in buildings|
Members of the Thysanura order are identified by their lack of wings and long antennae along with tail-like appendages at the end of their abdomens.
Some Thysanurans are found in houses and can be pests, but other than that they have little effect on environment.
There are several orders on insects that are similar to Thysanura. These groups include: Protura, Collembola, and Pterygota
Thysanura is split up into two suborders, Ectognatha and Entognatha. Each of these suborders is then split into different insect families.