Scavenger
The scavenger returns from Diablo, and it's taken on some properties of the Leapers from Diablo II. They look more like animals than demons, and are somewhat badger-like in their furry, striped appearance. But they leap and dart around wildly, and seem quite capable of swarming an unwary hero by sheer numbers.
A great mob of scavengers are seen in the WWI 2008 gameplay movie, and they're tricky beasts. They seem to be burrowers, and as the Witch Doctor runs along, the scavengers wait until he's in their midst before they dig out of the ground and attack all at once, a dozen or more of them leaping in from all different directions.
They're still small and rather weak beasts though, and die quickly once the Witch Doctor fights back.
Media
See screenshots and concept art of the Scavenger in the Image Gallery.
