Velvet Mite

The velvet mite makes its home in the leaves of woodland floors. They are the bane of all arthropods with whom they come in contact. They don't dine on us vertebrates. Rather, they feast of gnats, grasshoppers, other mites, etc (a tasty spread indeed).

In case you were wondering, they aren't edible themselves. Not even ants will touch them.
Source: here


Photo source: Wild About Britain