Duvalius is a genus of beetles in the family Carabidae, containing the following species: \n* Duvalius abnormis Knirsch, 1913 \n* Duvalius abyssimus Reboleira & Ortuño, 2014 \n* Duvalius alexeevi Belousov, 1992 \n* Duvalius andreinii (Gestro, 1907) \n* Duvalius andreuccii Magrini & Vanni, 1984 \n* Duvalius annamariae Vanni & Magrini, 1989 \n* Duvalius antonellae Casale, Giachino, Vailati & Vigna Taglianti, 1996 \n* Duvalius antoniae Reitter, 1892 \n* Duvalius apuanus Dodero, 1917 \n* Duvalius armeniacus Casale, 1979 \n* Duvalius arnoldii Jeannel, 1962 \n* Duvalius aroaniae Casale, Giachino, Vailati & Vigna Taglianti, 1996 \n* Duvalius auberti Grenier, 1864 \n* Duvalius babicola Knirsch, 1925 \n* Duvalius baborensis Bruneau de Mire, 1955 \n* Duvalius balazuci Bruneau de Mire, 1948 \n* Duval