Systena

***Systena*** er en slekt av biller som tilhører familiegruppen bladbiller (Chrysomelidae).

## Utseende
Små, avlange, blanke, ofte brokete fargede jordlopper. Noen arter er mørke med metallisk glans, andre er brunrøde eller farget i gult, rødt og svart.

## Levevis
Denne slekten kan leve på urter av en rekke ulike plantefamilier.

## Utbredelse
Slekten er vidt utbredt i Nord-, Mellom- og Sør-Amerika, med flest arter i den neotropiske økosonen.

## Systematisk inndeling

* orden **[[biller]]** (Coleoptera)
** underorden **[[Polyphaga]]**
*** overfamilie **[[Chrysomeloidea]]** Latreille, 1802 (=Phytophaga) 
**** familien  bladbiller (Chrysomelidae Latreille, 1802) 
***** underfamilien **jordlopper**, Alticinae Newman, 1834
****** stammen Alticini
******* understammen Systenina
******** Slekten ***Systena*** Chevrolat *in* Dejean, 1836
********* *[[Systena abbreviata]]* Jacoby, 1902
********* *[[Systena antennata]]* Jacoby, 1905
********* *[[Systena apicicornis]]* Jacoby, 1884
********* *[[Systena argentinensis]]* Jacoby, 1905
********* *[[Systena basalis]]* Jacquelin du Val, 1856
********* *[[Systena batesi]]* Balý, 1864
********* *[[Systena bicolor]]* Jacoby, 1897
********* *[[Systena bifasciata]]* Jacoby, 1888
********* *[[Systena bitaeniata]]* (J. L. LeConte, 1859)
********* *[[Systena blanda]]* F. E. Melsheimer, 1847
********* *[[Systena brasiliensis]]* Jacoby, 1902
********* *[[Systena brunneovittata]]* Jacoby, 1884
********* *[[Systena brunnipennis]]* Clark, 1865
********* *[[Systena c-nigrum]]* Jacoby, 1899
********* *[[Systena californica]]* Blake, 1935
********* *[[Systena carri]]* Blake, 1935
********* *[[Systena championi]]* Jacoby, 1884
********* *[[Systena chloropus]]* Harold, 1876
********* *[[Systena clarki]]* Jacoby, 1902
********* *[[Systena coerulata]]* Balý, 1877
********* *[[Systena coeruleipennis]]* Suffrian, 1868
********* *[[Systena collaris]]* Crotch, 1873
********* *[[Systena contigua]]* Jacoby, 1884
********* *[[Systena corni]]* Schaeffer, 1932
********* *[[Systena coxalis]]* Jacoby, 1884
********* *[[Systena deyrollei]]* Balý, 1877
********* *[[Systena dilatipennis]]* Jacoby, 1884
********* *[[Systena dimorpha]]* Blake, 1933
********* *[[Systena discoidalis]]* Jacoby, 1883
********* *[[Systena elongata]]* (Fabricius, 1798)
********* *[[Systena exclamationis]]* Boheman, 1859
********* *[[Systena filiformis]]* (Fabricius, 1801)
********* *[[Systena frontalis]]* (Fabricius, 1801)
********* *[[Systena gracilenta]]* Blake, 1933
********* *[[Systena hudsonias]]* (Forster, 1771)
********* *[[Systena humeralis]]* Clark, 1865
********* *[[Systena interrogationis]]* Clark, 1865
********* *[[Systena laevis]]* Blake, 1935
********* *[[Systena laticollis]]* Jacoby, 1884
********* *[[Systena laurentia]]* Bechyné, 1955
********* *[[Systena lherminieri]]* Bryant, 1942
********* *[[Systena longicornis]]* Jacoby, 1884
********* *[[Systena lugubris]]* Clark, 1865
********* *[[Systena marginalis]]* (Illiger, 1807)
********* *[[Systena marginata]]* Jacoby, 1884
********* *[[Systena marginicollis]]* Clark, 1865
********* *[[Systena marmorata]]* Jacoby, 1885
********* *[[Systena megasceloides]]* Jacoby, 1885
********* *[[Systena melanocephala]]* Jacoby, 1905
********* *[[Systena mesochlora]]* Blake, 1935
********* *[[Systena metallica]]* Jacoby, 1884
********* *[[Systena mexicana]]* Jacoby, 1884
********* *[[Systena minuta]]* Jacoby, 1891
********* *[[Systena mitis]]* (J. L. LeConte, 1858)
********* *[[Systena mustela]]* Clark, 1865
********* *[[Systena nigroplagiata]]* Jacoby, 1884
********* *[[Systena nitentula]]* Bechyné, 1954
********* *[[Systena novemmaculata]]* Clark, 1865
********* *[[Systena oberthueri]]* Balý, 1878
********* *[[Systena ornata]]* Balý, 1877
********* *[[Systena pallicornis]]* Schaeffer, 1906
********* *[[Systena pallipes]]* Schwarz, 1878
********* *[[Systena palmeri]]* Jacoby, 1884
********* *[[Systena pectoralis]]* Clark, 1865
********* *[[Systena plagiata]]* Clark, 1865
********* *[[Systena plicata]]* Blatchley, 1921
********* *[[Systena puberula]]* Weise, 1921
********* *[[Systena punctatissima]]* Jacoby, 1902
********* *[[Systena puncticollis]]* Jacoby, 1884
********* *[[Systena punctulata]]* Harold, 1875
********* *[[Systena quadricollis]]* Jacoby, 1884
********* *[[Systena regularis]]* Jacoby, 1884
********* *[[Systena robusta]]* Jacoby, 1891
********* *[[Systena s-littera]]* (Linnaeus, 1758)
********* *[[Systena scutellaris]]* Jacoby, 1884
********* *[[Systena sexnotata]]* Fall, 1910
********* *[[Systena semivittata]]* Jacoby, 1884
********* *[[Systena subcostata]]* Jacoby, 1884
********* *[[Systena subrugosa]]* Jacoby, 1884
********* *[[Systena sulphurea]]* Jacoby, 1891
********* *[[Systena suturalis]]* Clark, 1865
********* *[[Systena taeniata]]* (Say, 1824)
********* *[[Systena tenuis]]* Bechyné
********* *[[Systena testaceovittata]]* Clark, 1865
********* *[[Systena thoracica]]* Jacoby, 1884
********* *[[Systena tincta]]* Clark, 1865
********* *[[Systena tumidicollis]]* Weise, 1921
********* *[[Systena undulata]]* Jacoby, 1884
********* *[[Systena ustulata]]* Haold, 1875
********* *[[Systena varia]]* Weise, 1885
********* *[[Systena variabilis]]* Jacoby, 1884
********* *[[Systena variata]]* Schaeffer, 1932
********* *[[Systena viridilimbata]]* Jacoby, 1891
********* *[[Systena viridipennis]]* Jacoby, 1884

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