Liodessus is a genus of beetles in the family Dytiscidae, containing the following species:
Liodessus abjectus (Sharp, 1882)
Liodessus acollensis Guignot, 1955
Liodessus affinis (Say, 1823)
Liodessus andinus Guignot, 1957
Liodessus antrias Guignot, 1955
Liodessus bogotensis Guignot, 1953
Liodessus bonariensis (Steinheil, 1869)
Liodessus bordoni Pederzani, 2001
Liodessus cancellosus Guignot, 1957
Liodessus cantralli (Young, 1953)
Liodessus chilensis (Solier, 1849)
Liodessus crassus (Sharp, 1882)
Liodessus crotchi Nilsson, 2001
Liodessus deflectus Ordish, 1966
Liodessus delfini (Régimbart, 1899)
Liodessus dilatatus (Régimbart, 1895)
Liodessus emaciatus Guignot, 1953
Liodessus fijiensis (J.Balfour-Browne, 1944)
Liodessus flavicollis (LeConte, 1855)
Liodessus flavofasciatus (Steinheil, 1869)
Liodessus guttatus Biström, 1988
Liodessus hobbsi (Young, 1950)
Liodessus incrassatus Biström, 1988
Liodessus involucer (Brinck, 1948)
Liodessus legrosi Biström, 1988
Liodessus leonensis Franciscolo & Sanfilippo, 1990
Liodessus luteopictus (Régimbart, 1897)
Liodessus microscopicus (Zimmermann, 1921)
Liodessus miersii (White, 1847)
Liodessus noviaffinis K.B.Miller, 1998
Liodessus obscurellus (LeConte, 1852)
Liodessus ophonoides Guignot, 1955
Liodessus patagonicus (Zimmermann, 1923)
Liodessus plicatus (Sharp, 1882)
Liodessus rhicnodes Guignot, 1955
Liodessus riveti (Peschet, 1923)
Liodessus saratogae K.B.Miller, 1998
Liodessus strobeli (Steinheil, 1869)
Liodessus uruguensis (Sharp, 1882)
