Minute insects, less than 3 mm long, that live gregariously under
bark, in decaying wood, humus, etc., and are sometimes found near the galleries of
termites. Antennae with large, distinct segments and rather thick in appearance.
Mouthparts for biting and chewing. Most species have winged and wingless forms. The
winged forms have two pairs of wings but shed them, rather like termites, by breaking
them off at the bases. The commoner wingless forms are only slightly pigmented and
without eyes, while the rarer winged forms are darker in colour and have eyes. Tarsi
2-segmented. Cerci very short and unsegmented. Metamorphosis simple. This is a very
small Order consisting of 16 known species found in all the warmer regions of the
world. Absent from Europe and the British Isles. All the known species are placed in
a single genus Zorotypus (family Zorotypidae).