Melanocanthon nigricornis was observed to break up, bundle up, roll away, and bury pieces of the cap of a gill mushroom growing in sandy prairie in Wisconsin. These beetles were also found on a dead lizard and one was observed to roll and bury mammalian carrion. This is the first report of any species in Melanocanthon rolling and burying pieces of fungus and carrion.
Williams, Andrew H. and Kriska, Nadine L.
"Notes on the Biology of Melanocanthon Nigricornis (Coleoptera: Scarabaeidae),"
The Great Lakes Entomologist, vol 34
Available at: https://scholar.valpo.edu/tgle/vol34/iss1/14