Psychneuein

Psychneuein is a Gladius airborne elusive warp unit that infests its victims..

Description
A rare Warp-sensitive creature apparently native to Prospero, the Psychneuein seems capable of travel through the Old One's Webways, meaning they're widely distributed around the galaxy. Parallel evolution has resulted in a wasp-like appearance, but a mature adult's significant strength, speed, toughness and rumoured ability to turn insubstantial at will makes them a threat to any sentient being.