Malacorhinus Explained

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.^{[1] [2]}

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))^[3]

Further reading

• How many genera and species of Galerucinae s. str. do we know? Updated statistics (Coleoptera, Chrysomelidae). In: Chaboo CS, Schmitt M (Eds) Research on Chrysomelidae. 2017. Nie . R-E. Bezděk . J.. Yang . X-K. ZooKeys. 720. 91–102. 10.3897/zookeys.720.13517. 5740445. 29290727. free. 2017ZooK..720...91N.
• Book: A Synopsis of the North American Galerucinae (Coleoptera: Chrysomelidae). 1965. Wilcox . John A.. New York State Museum and Science Service.
• Book: Catalog of the leaf beetles of America north of Mexico (Coleoptera: Megalopodidae, Orsodacnidae and Chrysomelidae, excluding Bruchinae). 2003. Riley . Edward G.. Clark . Shawn M.. Seeno . Terry N.. The Coleopterists' Society. Special Publication No. 1. 978-0-9726087-1-8.
• Book: Catalogue of Palaearctic Coleoptera, Volume 6: Chrysomeloidea. 2013. Lobl . I.. Smetana . A.. Apollo Books. 978-90-04-26091-7.

Notes and References

1. Web site: Biological Control of Mimosa – Malacorhinus – Root Feeding Beetle. January 2018. Northern Territory Government. 2022-11-01.
2. News: 8 August 2002. Mimosa meets its matches. News in Science. Australian Broadcasting Corporation. 2022-11-01.
3. Mignot. E.C.. 1970. A replacement name for Malacorhinus tripunctata (Jacoby) Galerucinae: Chrysomelidae). The Coleopterists Bulletin. 24. 2. 59.