Malacorhinus is a genus of skeletonizing leaf beetles in the family Chrysomelidae. There are about 30 described species in Malacorhinus. They are found in North America and the Neotropics.
In Australia, the species Malacorhinus irregularis was introduced to Northern Territory in 2000 as a biological control agent against the weed Mimosa pigra.
Species These 10 species belong to the genus Malacorhinus: Malacorhinus acaciae (Schaeffer, 1906) Malacorhinus apicalis Jacoby, 1887 Malacorhinus biplagiatus Jacoby, 1887 Malacorhinus decempunctatus Jacoby, 1887 Malacorhinus dilaticornis Jacoby, 1887 Malacorhinus exclamationis Jacoby, 1892 Malacorhinus foveipennis (Jacoby, 1879) Malacorhinus irregularis (Jacoby, 1887) Malacorhinus knullorum Wilcox, 1951 Malacorhinus tilghmani Mignot, 1970 (replacement name for Malacorhinus tripunctatus (Jacoby, 1879))
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