Discheramocephalus stewarti is a species of feather-winged beetle, the smallest beetles on earth, first found in Bolivia.Grebennikov, Vasily V. "How small you can go: Factors limiting body miniaturization in winged insects with a review of the pantropical genus Discheramocephalus and description of six new species of the smallest beetles (Pterygota: Coleoptera: Ptiliidae)." European Journal of Entomology105.2 (2008): 313.
References
Further reading Grebennikov, Vasily V. "Discheramocephalini, a new pantropical tribe of featherwing beetles (Coleoptera: Ptiliidae): description of new taxa and phylogenetic analysis." Systematic Entomology 34.1 (2009): 113–136.