Chrysomela

Chrysomela is a genus of leaf beetles found almost throughout the world, but not in Australia. It contains around 40 species, including 7 in eastern and northern Europe. It also includes at least 17 species in North America, including the cottonwood leaf beetle Chrysomela scripta.

Taxonomy
Chrysomela is traditionally broken up into three subgenera, Chrysomela, Macrolina (or Strickerus) and Pachylina. In 1998, researchers Maurizio Biondi and Mauro Daccordi proposed a new classification of Chryomela without any subgenera. This was followed by the sixth volume of the Catalogue of Palaearctic Coleoptera.

Species
These 27 species belong to the genus Chrysomela:


 * Chrysomela aeneicollis (Schaeffer, 1928) i c g b
 * Chrysomela collaris Linnaeus, 1758 g
 * Chrysomela collaris alpina Zetterstedt, 1838
 * Chrysomela collaris blaisdelli (Van Dyke, 1938)
 * Chrysomela collaris collaris Linnaeus, 1758
 * Chrysomela collaris hyperborea Medvedev & Khruleva, 2011
 * Chrysomela confluens Rogers, 1856 i c g b
 * Chrysomela crotchi Brown, 1956 i c g b (aspen leaf beetle)
 * Chrysomela cuprea Fabricius, 1775 g
 * Chrysomela cyaneoviridis Gruev, 1994
 * Chrysomela falsa Brown, 1956 i c g b
 * Chrysomela interrupta Fabricius, 1801 i c g b (alder leaf beetle)
 * Chrysomela invicta Brown, 1956 i c g
 * Chrysomela knabi Brown, 1956 i c g b
 * Chrysomela lapponica Linnaeus, 1758 g
 * Chrysomela laurentia Brown, 1956 i c g b
 * Chrysomela lineatopunctata Forster, 1771 i c g b
 * Chrysomela mainensis J. Bechyné, 1954 i c g b
 * Chrysomela populi Linnaeus, 1758 g
 * Chrysomela saliceti (Weise, 1884) g
 * Chrysomela saliceti afghanica (Reineck, 1937)
 * Chrysomela saliceti quadricollis (Jakob, 1955)
 * Chrysomela saliceti saliceti (Weise, 1884)
 * Chrysomela saliceti turcestanica (Reineck, 1937)
 * Chrysomela salicivorax (Jakob, 1953)
 * Chrysomela schaefferi Brown, 1956 i c g b
 * Chrysomela scripta Fabricius, 1801 i c g b (cottonwood leaf beetle)
 * Chrysomela semota Brown, 1956 i c g b
 * Chrysomela sonorae Brown, 1956 i c g b
 * Chrysomela taimyrensis Medvedev & Chernov, 1969
 * Chrysomela texana (Schaeffer, 1920) i c g b (red-headed willow leaf beetle)
 * Chrysomela tremula Fabricius, 1787 g
 * Chrysomela tremula selengensis (Jakob, 1953)
 * Chrysomela tremula tremula Fabricius, 1787
 * Chrysomela vigintipunctata (Scopoli, 1763) g
 * Chrysomela vigintipunctata alticola Wang, 1992
 * Chrysomela vigintipunctata vigintipunctata (Scopoli, 1763)
 * Chrysomela walshi Brown, 1956 i c g
 * Chrysomela wrangeliana Medvedev, 1973

Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net