- "Right, space bugs. However, for the purposes of my research I refer to them as R-75."
- ―Myers
R-75 is the SGC name for an insect created by the Priors of the Ori, possibly as a countermeasure to the vaccine for the Ori plague, to circumvent attempts to forstall their destructive nature. They prefer nighttime, but can function in the day, though they are usually lethargic without a food source. They are also sound sensitive, travelling by way of echolocation. Asexual creatures, they reproduce very quickly and live for a very short time, literally eating themselves to death. Initially, they are herbivores, eating crops from the roots. When denied crops, their physiology adapts to become carnivorous, eating all of an animal lifeform. The SGC originally hoped to use R-75 as a countermeasure for the kassa crop, but the containment of the creatures failed when they were exposed to meat, killing everyone at the Gamma Site but SG-1 and the members of the IOA visiting the Gamma Site. After the Odyssey rescued SG-1 and the IOA members, they released a toxin which killed the bugs. (SG1: "The Scourge")