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. 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.
Species included The genus includes the following species: Acalymma albidovittatum (Baly, 1889) – cucumber beetle Acalymma bechynei Cabrera, 1999 Acalymma bertoluccii Gilbert & Clark, 2007 Acalymma bivittulum (Kirsch, 1883) (Synonym: A. xanthographa Bechyné, 1955) Acalymma blandulum (LeConte, 1868) Acalymma blomorum Munroe & Smith, 1980 Acalymma bruchii (Bowditch, 1911) Acalymma caucum Bechyné, 1956 Acalymma cornutum (Baly, 1886) Acalymma cryptogrammum Bechyné & Bechyné, 1968 Acalymma fairmairei (Baly, 1886) Acalymma flavovittatum (Baly, 1886) Acalymma gouldi Barber, 1947 Acalymma hirtum Acalymma horni (Jacoby, 1887) Acalymma incum Acalymma innubum (Fabricius, 1775) Acalymma invenustum Munroe & Smith, 1980 Acalymma isogenum Bechyné & Bechyné, 1968 Acalymma longicolle (Jacoby, 1887) Acalymma luridifrons Munroe & Smith, 1980 Acalymma mysticum (Jacoby, 1887) Acalymma obscurofasciatum (Jacoby, 1887) Acalymma palomarense Munroe & Smith, 1980 Acalymma peregrinum (Jacoby, 1892) Acalymma punctatum Bechyné, 1958 Acalymma semifemoratum (Gahan, 1891) Acalymma solarianum Bechyné & Bechyné, 1962 Acalymma subaeneum Acalymma thiemei Acalymma trivittatum (Mannerheim, 1843) – western striped cucumber beetle Acalymma vinctum (LeConte, 1878) Acalymma vittatum (Fabricius, 1775) – striped cucumber beetle Acalymma vittigerum (Boheman, 1859)
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