Arachnid

Arachnids (more commonly known as "Bugs", and "Archies" as well as called "Pseudo-Arachnids" in novel) are an alien race that has evolved, and since they've conquered several planets outside Federation space in the a sci-fi franchise, Starship Troopers, they instead had a homeland called Arachnidia, and they will never conquer their neighbors again because of them being completely peaceful. They are believed to be mindless hive creatures controlled or instructed by a brain caste, but since they are free from the brain castes, they are now gaining their sapience, and thus they became citizens of Earth, and founded Arachnidia.