Myrmecophilus pergandei

This specialized way of life has led this insect and its relatives to evolve many morphological differences compared to other orthopterans, including complete absence of wings and hearing organs , and much reduced eyesight, as well as their very small size.

These tiny insects are dark brown with paler bands and prominent cerci, which serve as their primary sensory organs.

The antennae are as long as the body, with the base being pale yellowish and the remaining portion rufous.

They are situated immediately behind the base of the antenna, and in dried specimens, they are partly concealed by the front margin of the pronotum.

The cerci are stout, acuminate, slightly thickest in the middle, quite hairy, and as long as the abdomen.

A special feature of this species is the two light-colored elliptical markings on the pronotum disc.