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Acalymma
''Acalymma'' is a genus of leaf beetles found mainly in the New World. Approximately 72 species have been described in the Western Hemisphere. ==Pest Species and Impacts== In the United States, two species are major pests of cucurbits, the striped cucumber beetle (''Acalymma vittatum''), which is mainly found east of the Mississippi River, and ''Acalymma trivittatum'' which is mostly found west of the Mississippi. Adults feed on young leaves, and larvae can damage roots.〔(【引用サイトリンク】 author = S. Toepfer, T. Haye, M. Erlandson, M. Goettel, J.G. Lundgren, R.G. Kleespies, D.C. Weber, G. Cabrera Walsh, A. Peters, R.-U. Ehlers, H. Strasser, D. Moore, S. Keller, S. Vidal and U. Kuhlmann )〕 ''A. vittatum'' vectors bacterial wilt ''Erwinia tracheiphila'' Holland (Enterobacteriales: Enterobacteriaceae) to the plants as it pierces plant stems to suck juices.〔Fleischer, S.J., de Mackiewicz, D., Gildow, F.E., and Lukezic, F.L. (1999), Serological Estimates of the Seasonal Dynamics of ''Erwinia tracheiphila'' in ''Acalymma vittata'' (Coleoptera: Chrysomelidae), Environmental Entomology, 28, 470-476.〕
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