Live millipedes
The Peruvian dung beetle, Deltochilum valgum, does not eat dung at all and exclusively kills and eats millipedes instead. The diet of some other dung beetles sometimes includes dead animals and insects, and a couple of species will even kill queen leafcutter ants to supplement their dung-based diets. However, Deltochilum valgum is the only species known to be a full-time killer.
