''Jansonius'' is a genus of leaf beetles in the subfamily Eumolpinae. It is found in Chile and Argentina. It was formerly placed in the tribe

Adoxini Bromiini (or Adoxini) is a tribe of leaf beetles in the subfamily Eumolpinae. The tribe contains approximately 120 genera, which are found worldwide. They are generally thought to be an artificial group, often with a subcylindrical prothorax wi ...

, section Myochroites, but is now placed in

Nodinini Typophorini is a tribe of leaf beetles in the subfamily Eumolpinae. The tribe contains approximately 100 genera, which are found worldwide. Members of the tribe are mainly characterized by notches on the tibiae of the middle and hind legs, whic ...

, section Metachromites.

Species

The genus contains at least one valid species: * ''

Jansonius aeneus ''Jansonius'' is a genus of leaf beetles in the subfamily Eumolpinae. It is found in Chile and Argentina. It was formerly placed in the tribe Adoxini, section Myochroites, but is now placed in Nodinini, section Metachromites. Species The genus c ...

'' (

Blanchard Blanchard is a French family name. It is also used as a given name. It derives from the Old French word ''blanchart'' which meant "whitish, bordering upon white". It is also an obsolete term for a white horse. Geographical distribution As of 2014, ...

, 1851) (Synonyms: ''Eumolpus? valdivianus''

Philippi Philippi (; grc-gre, Φίλιπποι, ''Philippoi'') was a major Greek city northwest of the nearby island, Thasos. Its original name was Crenides ( grc-gre, Κρηνῖδες, ''Krenides'' "Fountains") after its establishment by Thasian colon ...

, 1864; ''Chaetocnema blanchardi'' Baly, 1877; ''Jansonius alternatus'' Baly, 1878) ''Dia patagonica'' Boheman, 1858, also from Chile, was placed in the genus by Jan Bechyné in 1953, but as the type is apparently lost or destroyed, this species is considered '' incertae sedis'' in Eumolpinae by Askevold & LeSage (1990). Several additional species were described in or assigned to the genus by Jan Bechyné from other countries in South America, though these may not belong to the genus according to Askevold & LeSage (1990): * ''

Jansonius boggianii ''Jansonius'' is a genus of leaf beetles in the subfamily Eumolpinae. It is found in Chile and Argentina. It was formerly placed in the tribe Adoxini, section Myochroites, but is now placed in Nodinini, section Metachromites. Species The g ...

'' ( Jacoby, 1899) – Paraguay, Argentina * ''

Jansonius pubescens ''Jansonius'' is a genus of leaf beetles in the subfamily Eumolpinae. It is found in Chile and Argentina. It was formerly placed in the tribe Adoxini, section Myochroites, but is now placed in Nodinini, section Metachromites. Species The g ...

'' Bechyné, 1955 – Paraguay * ''

Jansonius scolytinus ''Jansonius'' is a genus of leaf beetles in the subfamily Eumolpinae. It is found in Chile and Argentina. It was formerly placed in the tribe Adoxini, section Myochroites, but is now placed in Nodinini, section Metachromites. Species The g ...

'' Bechyné & Bechyné, 1961 – Brazil * ''

Jansonius vigiensis ''Jansonius'' is a genus of leaf beetles in the subfamily Eumolpinae. It is found in Chile and Argentina. It was formerly placed in the tribe Adoxini, section Myochroites, but is now placed in Nodinini, section Metachromites. Species The g ...

'' Bechyné & Bechyné, 1961 – Brazil

References

Eumolpinae Chrysomelidae genera Beetles of South America Taxa named by Joseph Sugar Baly {{Eumolpinae-stub