| Flightless insects with ectognathous mouth parts (externally visible
as compared to entognathous mouth parts of the Diplura, Protura and
Collembola which are sunk into the head and thus not imediately
visible). They have long filiform antennae with as many as, or more than
30 segments. The abdomen has eleven segments generally ending in three
'tails' consisting of two cerci and a telson. They are commonly
represented by the Silverfish and the firebrats often found in houses
and bakeries respectively. |
