Kihunters are a species found in the Metroid video games, and first appeared in Super Metroid for the SNES and, later on, Metroid Fusion for the Game Boy Advance. By looking at them you can obvoiusly see that they are an insect type of species, though apparently are Space Pirates, though are not as well known as the Zebesians are. Still, the fact that they are insects gives them plenty of uniqe abilities, including the power to fly and shoot out acid from their mouths. However, they would only use the later attack if their wings have been destroyed.
They seem to be very trustworthy, seeing that they were put on guard to make sure none of their opponents dare tries and gets to Mother Brain. Sadly for them, they weren't the best of guards, and were defeated by the protagonist of the series, Samus Aran.
While it can be conclusive that many Kihunters are still alive, it is known that many of them, probably a majority, died when the planet Zebes was destroyed.