Dytiscidae Leach, 1815
Lancetes angusticollis (Curtis, 1839)
Lancetes arauco Bachmann & Trémouilles, 1981
Lancetes backstromi Zimmermann, 1924
Lancetes biremis Ríha, 1961
Lancetes borellii Griffini, 1895
Lancetes dacunhae Brinck, 1948
Lancetes delkeskampi Ríha, 1961
Lancetes falklandicus Ríha, 1961
Lancetes flavipes Zimmermann, 1924
Lancetes flavoscutatus Enderlein, 1912
Lancetes immarginatus Zimmermann, 1924
Lancetes lanceolatus (Clark, 1863)
Lancetes marginatus (Steinheil, 1869)
Lancetes mixtus (C. O. Waterhouse, 1881)
Lancetes nigriceps (Erichson, 1834)
Lancetes praemorsus (Erichson, 1834)
Lancetes subseriatus Zimmermann, 1924
Lancetes tarsalis Ríha, 1961
Lancetes theresae Sharp, 1902
Lancetes towianicus Zimmermann, 1924
Lancetes varius (Fabricius, 1775)
Lancetes waterhousei Griffini, 1895