Sienkiewicz, P., & Lipa, J. (2010). Clitellocephalus ophoni (Tuzet et Ormières, 1956) (Apicomplexa: Eugregarinida: Gregarinidae) recorded in Poland on strawberry seed beetle Harpalus(Ophonus) rufipes (De Geer, 1774) (Coleoptera: Carabidae). Biological Letters, 46(1), 43–50. https://doi.org/10.2478/v10120-009-0013-1