Daemonium benevolens, the Chastifer, is a small short-haired species of predatory imp. 

Up until recently this species was considered extinct, with its only living relative being Daemonium benevolens domesticus, but ventures into cloning by the --- have produced living specimens, which have subsequently been released 

Brought back from the past and is becoming invasive again

Some people think it to be a kind creature for having the decency to put its prey to sleep before inflicting violence upon it. There may be validity to this perspective, as Chastifer have been seen displaying intelligent and altruistic behavior before.