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 Animal common name disambiguation pages