Thranx

The Thranx are an insectoid race featured in Alan Dean Foster's Humanx Commonwealth series. Originally at war with the reptilian AAnn, the Thranx discovered a human space vessel, and captured the occupants. Through the efforts of rogue thranx, the humans were liberated and returned to Terra, and the alliance between the two species initiated.

Visually, the thranx are an insectoid race, 1 and 1/2 meters when on all six legs. Chitin color differs between males and females, blue for the males and aquamarine for females, deepening to purple in old age. Vestigal double set of wings, ritually removed after mating. The head is heart-shaped, with large, compound golden eyes sometimes banded with red. Four pairs of appendages; two truhands, four trulegs, and a set of intermediaries that can function as an additional pair of arms or legs.