Bilton, D.T. 2018. A new humicolous Parhydraena d’Orchymont, 1937 from South Africa (Coleoptera, Hydraenidae). Zootaxa. 4378, 2 (Feb. 2018), 284–288. DOI:https://doi.org/10.11646/zootaxa.4378.2.9.