Lacon là một chi bọ cánh cứng trong họ 
Elateridae.
Chi này được Laporte miêu tả khoa học năm 1838.

Các loài 
Các loài trong chi này gồm:
 Lacon aberrans (Candèze, 1874)
 Lacon africanus Girard, 2003
 Lacon altaicus (Candèze, 1882)
 Lacon anthracinus (Candèze, 1900)
 Lacon argentatus (Candèze, 1874)
 Lacon aspersus Schwarz, 1902
 Lacon atayal Kishii, 1991
 Lacon aterimus (Candèze, 1889)
 Lacon auroratus (Say, 1839)
 Lacon aurosquamosus (Jagemann, 1944)
 Lacon avitus (Say, 1839)
 Lacon balachowskyi Girard, 1971
 Lacon beckeri Golbach, 1983
 Lacon bicolor Fleutiaux, 1940
 Lacon bipectinatus Reise, 1989
 Lacon boninensis (Ôhira, 1970)
 Lacon braziliensis (Laporte, 1836)
 Lacon bulwensis (Fleutiaux, 1919)
 Lacon caeruleus Schimmel, 1998
 Lacon calabaricus (Candèze, 1874)
 Lacon candezei (Desbrochers des Loges, 1875)
 Lacon candidus (Fall, 1932)
 Lacon cantaloubei (Girard, 1969)
 Lacon carinatus Vats & Kashyap, 1992
 Lacon carinensis (Candèze, 1891)
 Lacon castelnaui (Candèze, 1880)
 Lacon chabannei (Guérin-Méneville, 1829)
 Lacon chilensis (Solier, 1851)
 Lacon churakagi (Ôhira, 1971)
 Lacon cinctus (Candèze, 1878)
 Lacon coecus (Candèze, 1874)
 Lacon cognatus (Candèze, 1892)
 Lacon collisus (Candèze, 1889)
 Lacon constellatus (Fleutiaux, 1906)
 Lacon cribratus (Candèze, 1857)
 Lacon cribrosus (Eschscholtz)
 Lacon cristatus (Fleutiaux, 1918)
 Lacon cuneatus (Candèze, 1865)
 Lacon delagrangei Buysson, 1891
 Lacon discoidea (Weber, 1801)
 Lacon distinctus (Fleutiaux, 1920)
 Lacon dorsalis (Candèze, 1857)
 Lacon drusa (Marseul, 1870)
 Lacon dubius Candèze, 1857
 Lacon expansus (Fleutiaux, 1920)
 Lacon fairmairei (Candèze, 1882)
 Lacon flavopilosus Vats & Kashyap, 1992
 Lacon fleutiauxi (Schwarz, 1902)
 Lacon foveatus (Candèze, 1895)
 Lacon fulvipennis Fleutiaux, 1932
 Lacon funebris (Solsky, 1881)
 Lacon ganglbaueri (Schwarz, 1894)
 Lacon geographicus (Candèze, 1864)
 Lacon gillerforsi Platia & Schimmel, 1994
 Lacon giuglarisi Chassain, 2005
 Lacon graecus (Candèze, 1857)
 Lacon griseus (Schwarz, 1900)
 Lacon impressicollis (Say, 1825)
 Lacon inaequalis (Candèze, 1857)
 Lacon incommodus Fleutiaux, 1934
 Lacon incomptus (Kraatz, 1882)
 Lacon inflatus (Candèze, 1857)
 Lacon jacquieri (Candèze, 1857)
 Lacon javanus (Candèze, 1893)
 Lacon jeanvoinei Fleutiaux, 1940
 Lacon kapleri Platia & Schimmel, 1994
 Lacon kaszabi Golbach, 1983
 Lacon kikuchii (Miwa, 1929)
 Lacon kintaroui Kishii, 1990
 Lacon kryzhanovskyi Dolin & Atamuradov, 1989
 Lacon kurukshetrensis Vats & Kashyap, 1992
 Lacon kushihige Kishii, 1990
 Lacon laconoides (Fleutiaux, 1907)
 Lacon laconoides (Schwarz, 1902)
 Lacon ladae Mertlik & Dusanek, 2006
 Lacon lamottei Girard, 2003
 Lacon laoticus Fleutiaux, 1927
 Lacon laticollis (Candèze, 1857)
 Lacon lepidopterus (Panzer, 1800)
 Lacon limbatus (Candèze, 1857)
 Lacon linearis (Candèze, 1865)
 Lacon lithophilus (Candèze, 1857)
 Lacon longicornis (Champion, 1894)
 Lacon luzonicus (Candèze, 1875)
 Lacon maculatus (LeConte, 1866)
 Lacon madidus (Candèze, 1889)
 Lacon maeklinii (Candèze, 1865)
 Lacon mamillatus (Candèze, 1865)
 Lacon marmoratus (Fabricius, 1801)
 Lacon mausoni Hayek, 1973
 Lacon mekrani (Candèze, 1889)
 Lacon mexicanus (Candèze, 1857)
 Lacon misticus (Mignot, 1969)
 Lacon mixtus (Candèze, 1878)
 Lacon modestus (Boisduval, 1835)
 Lacon monticola (Candèze, 1897)
 Lacon nigrofucus Vats & Kashyap, 1992
 Lacon nobilis (Fall, 1932)
 Lacon novus Fleutiaux, 1934
 Lacon obscurus Fleutiaux, 1940
 Lacon olivieri (Candèze, 1874)
 Lacon orientalis (Fleutiaux, 1918)
 Lacon palliatus (Latreille, 1811)
 Lacon parallelus (Lewis, 1894)
 Lacon paulista Reise, 1992
 Lacon pectinatus (Candèze, 1865)
 Lacon pectinicornis (Champion, 1894)
 Lacon pectoralis (Fairmaire, 1884)
 Lacon philippinus (Fleutiaux, 1934)
 Lacon pictus (Fleutiaux, 1902)
 Lacon pollinaria (Candèze, 1857)
 Lacon punctatus (Herbst, 1779)
 Lacon puriensis Kishii, 1991
 Lacon pyrsolepis (LeConte, 1866)
 Lacon quadrinotatus Lewis, 1894
 Lacon querceus (Herbst, 1784)
 Lacon ramatasenseni (Miwa, 1934)
 Lacon recticollis Fleutiaux, 1927
 Lacon robustus (Fleutiaux, 1902)
 Lacon rorulenta (LeConte, 1859)
 Lacon rotundicollis Kishii & Jiang, 1994
 Lacon ruber (Perty, 1830)
 Lacon rubidus (Schwarz, 1902)
 Lacon rubripennis Fleutiaux, 1940
 Lacon salvazai Fleutiaux, 1918
 Lacon sanguineus (Candèze, 1863)
 Lacon setosus (Candèze, 1874)
 Lacon solai Platia & Gudenzi, 2000
 Lacon sparsus (Candèze, 1865)
 Lacon spurcus Candèze, 1865
 Lacon spurcus (Candèze, 1874)
 Lacon strangulatus (Fleutiaux, 1906)
 Lacon subcostatus (Candèze, 1857)
 Lacon subpectinatus (Schwarz, 1902)
 Lacon tawiensis Ôhira, 1974
 Lacon tenebrionoides (Candèze, 1857)
 Lacon tonkinensis (Fleutiaux, 1927)
 Lacon tristis Blanchard, 1853
 Lacon tumulosus (Candèze, 1888)
 Lacon unicolor (Candèze, 1874)
 Lacon variegatus Motschulsky, 1854
 Lacon vicinus (Candèze, 1891)
 Lacon viettei Girard, 1970
 Lacon viridis (Champion, 1894)
 Lacon vitalisi (Fleutiaux, 1918)
 Lacon wallacei (Candèze, 1874)
 Lacon yayeyamanus (Miwa, 1934)
 Lacon yunnanus Fleutiaux, 1940

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