Crawler

Crawlers are a small beetle-like creature that serves as a method for Chimeran infection. These creatures are capable of limited flight but they are often deployed through Spire missiles. Upon locating their target, the Crawlers begin to penetrate the bodies through the mouth or the nose. Once this has been accomplished, they begin to inject the Chimera virus after which the Crawler expires. However, through this its managed to infect the host which falls into a coma and the virus begins the process of an inexorable conversion of the host into a Chimeran creature.