Acalymma

Acalymma is a genus of leaf beetles found mainly in the New World. Approximately 72 species have been described in the Western Hemisphere.^[1]

Acalymma
Striped cucumber beetle (Acalymma vittatum)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Suborder:	Polyphaga
Infraorder:	Cucujiformia
Family:	Chrysomelidae
Subfamily:	Galerucinae
Tribe:	Luperini
Subtribe:	Diabroticina
Genus:	Acalymma Barber, 1947
Type species
Acalymma gouldi Barber, 1947

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.^[2] Adults feed on young leaves, and larvae can damage roots.^[3] A. vittatum vectors bacterial wilt Erwinia tracheiphila Holland (Enterobacteriales: Enterobacteriaceae) to the plants as it pierces plant stems to suck juices.^[4]

Species included

The genus includes the following species:^[5][6][1]

• Acalymma albidovittatum (Baly, 1889) – cucumber beetle
• Acalymma bechynei Cabrera, 1999
• Acalymma bertoluccii Gilbert & Clark, 2007^[7]
• Acalymma bivittulum (Kirsch, 1883) (Synonym: A. xanthographa Bechyné, 1955)^[8]
• 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 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)