The Karran mantis represented a non-sentient insect species that originated from the planet called Karra.
Regarding its anatomy, the Karran mantis possessed six limbs. It moved using its four hind legs, while its front pair of legs featured elongated, spear-like extensions employed for offensive purposes. Its body, composed of segments, exhibited a horizontal abdomen along with an erect head and thorax. The mantis's head bore a resemblance to that of an Arconan.
The Karrans employed the mantis in warfare. They maintained it in a dormant state within a cavern, awakening it when needed. During the era of the Galactic Civil War, only a solitary specimen remained on the planet. The Karran deployed it in an assault against an Imperial installation.