Arachnids

The Arachnids (more commonly known as Bugs) are a hostile alien species that have conquered many planets in the Starship Troopers Universe.

They have millions of years of evolution behind them and are, in the case of survival capability, the perfect species. They have the ability to colonize planets "by hurling their spore into space" and possess a social structure which fits their mental capabilities.

They have a caste system, with each subspecies filling a specific role. Brain Bugs and God Bugs have extreme psychic abilities that can be used to control all bugs in the colony, and the Queen's sole function is the production of its members.