Frolov, A.V. and Akhmetova, L.A. 2021. Review of the Orphninae (Coleoptera: Scarabaeidae) of Sri Lanka, with description of a new species of genus Orphnus Macleay, 1819. European Journal of Taxonomy. 767, 1 (Sep. 2021), 40–54. DOI:https://doi.org/10.5852/ejt.2021.767.1485.