Grebennikov, V. V. “A Featherwing Beetle Without Wings: Re-Discovery and Second Species of Rioneta (Coleoptera: Ptiliidae) from the Uluguru Mountains, Tanzania”. Zootaxa, vol. 1732, no. 1, Mar. 2008, pp. 45–53, doi:10.11646/zootaxa.1732.1.3.