The Geeger is a species found in the Metroid series, first appearing in the NES video game Metroid. They're flying creatures that greatly resemble some sort of insects. In the series, there are two types - blue and green ones, the former basically being stronger. They'll eject themselves out of their living spaces which are placed on almost all sides of the walls.
It's possible and likely that once Zebes, their planet, was destroyed, their species became extinct.