The Phibbilexes are a race descended from soft-bodied insects. They live in giant hive like constructs, in highly ordered societies. Each member is born into a caste which they live the entirety of their short lives. The whole is ruled by a "queen" who is specifically evolved for breeding purposes, though the members of the lower castes do enter into non-reproductive social relationships.
The Phibbilexes have one of the most complex languages ever discovered.