Lancetes is a genus of beetles in the family Dytiscidae, containing the following species:
Lancetes angusticollis (Curtis, 1839)Lancetes arauco Bachmann & Trémouilles, 1981Lancetes backstromi Zimmermann, 1924Lancetes biremis Riha, 1961Lancetes borellii Griffini, 1895Lancetes dacunhae Brinck, 1948Lancetes delkeskampi Riha, 1961Lancetes falklandicus Riha, 1961Lancetes flavipes Zimmermann, 1924Lancetes flavoscutatus Enderlein, 1912Lancetes immarginatus Zimmermann, 1924Lancetes lanceolatus (Clark, 1863)Lancetes marginatus (Steinheil, 1869)Lancetes mixtus (C.O.Waterhouse, 1881)Lancetes nigriceps (Erichson, 1834)Lancetes praemorsus (Erichson, 1834)Lancetes subseriatus Zimmermann, 1924Lancetes tarsalis Riha, 1961Lancetes theresae Sharp, 1902Lancetes towianicus Zimmermann, 1924Lancetes varius (Fabricius, 1775)Lancetes waterhousei Griffini, 1895