Several wingless hexapods are known as bristletails:
Class Insecta Order Archaeognatha (or Microcoryphia) – insect order that includes the jumping bristletails and rock bristletails Order Zygentoma – insect order that includes silverfish, firebrats, and allies
Class Entognatha Order Diplura – the two-pronged bristletails
Other Thysanura – deprecated insect order of silverfish and allies, now separated into Zygentoma and Archeognatha