Lacon

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***Lacon*** er en slekt av biller som hører til familien smellere (Elateridae).

## Utseende
Middelsstore (9-18 millimeter), nokså brede, mørke smellere, gjerne mer eller mindre skjellkledte. Kroppen er tett kledt med lyse, matte skjell. Antennene er trådformede og nokså korte. Pannen har en påfallende tverribbe.

**Larvene** er sylindriske, glatte med en voksaktige overflate og spredte hår, gjerne rød- eller gulaktige. Hodet er noe flatt med fremoverstrakte kjever. Det bakerste leddet har vanligvis et par kraftige utvekster av varierende form. Beina er ganske korte.

## Levevis
Artenes larver lever i råtten, død ved. Larvene er rovdyr som særlig eter andre billelarver. Mange arter bruker flere år på larveutviklingen. De voksne billene flyr godt, men er gjerne nattaktive, så man ser dem ikke så ofte.

## Utbredelse
Slekten har en nær kosmopolittisk utbredelse.

## Systematisk inndeling

* Ordenen biller, Coleoptera
** Underordenen Polyphaga
*** Overfamilien smellere, Elateroidea
**** Familien smellere, Elateridae
***** Underfamilien skjellsmellere, Agrypninae Candéze, 1857 – store, brede, skjellkledte arter
****** Stammen Agrypnini Candéze, 1851
******* Slekten ***Lacon*** Laporte de Castelnau, 1836 
******** *[[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 diqingensis]]* Prosvirov, 2016 
******** *[[Lacon discoidea]]* (Weber, 1801)
******** *[[Lacon distinctus]]* (Fleutiaux, 1920)
******** *[[Lacon dorsalis]]* (Candèze, 1857)
******** *[[Lacon drusa]]* (Marseul, 1870)
******** *[[Lacon dubius]]* Candèze, 1857
******** *[[Lacon elegantissimus]]* Prosvirov, 2016 
******** *[[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 kabakovi]]* Prosvirov, 2016
******** *[[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 lijiangensis]]* Prosvirov, 2016
******** *[[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 mertliki]]* Kundrata, Németh og Jarzabek-Müller, 2019 
******** *[[Lacon mexicanus]]* (Candèze, 1857)
******** *[[Lacon misticus]]* (Mignot, 1969)
******** *[[Lacon mixtus]]* (Candèze, 1878)
******** *[[Lacon modestus]]* (Boisduval, 1835)
******** *[[Lacon monticola]]* (Candèze, 1897)
******** *[[Lacon nadaii]]* Platia & Németh, 2011
******** *[[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

## Referanser


## Kilder
* 
* Silfverberg, H. 1992. *Enumeratio Coleopterorum Fennoscandiae, Daniae et Baltiae* (Liste over Nordens biller). Helsinki. 
* Zahradník, J. og Chvála, M. 1991. *Teknologisk forlags store bok om insekter*. N.W. Damm. Om smellere, side 282-287.
* Nettside om ''Lacon quercus''

## Eksterne lenker
* bugguide.net - bildedatabase over nordamerikanske insekter
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