Bug (Starship Troopers)
The Bugs are an extraterrestrial race in the novel Starship Troopers by Robert A. Heinlein, its film adaptation (and its first and second sequels and spin-off television series), sometimes also referred to as the Arachnids, although this is a misnomer, as the aliens are not related to Earth arachnids. The Bugs in the film differ considerably from those in the novel, which calls the Bugs "Pseudo-Arachnids". Meanwhile, Mongoose Publishing's Starship Troopers: The Miniatures Game refers to them as the Arachnid Empire. In the third film in the franchise, the bugs are referred to as "Archie," similar to nicknames given to Germans ("Jerry") and the Viet Cong ("Charlie") in their respective wars. The novel's Bugs are highly susceptible to radiation and chemical attacks, and the Mobile Infantry frequently seals their escape holes.
Read more about Bug (Starship Troopers): Differences Between The Novel and The Film, Colonization