Insectoids in science fiction and fantasy
In science fiction and fantasy literatures, the term insectoid ("insect-like") denotes any fantastical fictional creature sharing physical or other traits with ordinary insects (or arachnids). Most frequently, insect-like or spider-like extraterrestrial life forms is meant; in such cases convergent evolution may presumably be responsible for the existence of such creatures.
Source: Wikipedia — Insectoids in science fiction and fantasy (CC BY-SA 4.0)