{{short description|Genus of beetles}} {{Automatic taxobox | image = P1080933 Cassida nebulosa.jpg | image_caption = ''C. nebulosa'' | taxon = Cassida | authority = Linnaeus, 1758 | display_parents = 3 | type_species =''Cassida nebulosa'' | type_species_authority = Linnaeus, 1758 | diversity_link = List of Cassida species | diversity = at least 430 species }} thumb|''Cassida vibex'' thumb|''Cassida azurea''
'''''Cassida''''' is a large Old World genus of tortoise beetles in the subfamily Cassidinae. The natural history of Cassida sphaerula in South Africa is a typical life cycle.<ref>Adam S., M. Campos, H.D.C. Heron, C. Staines, R. Westerduijn, & C.S. Chaboo. 2022. Natural history notes of Cassida sphaerula Boheman, 1853 (Coleoptera: Chrysomelidae: Cassidini) on Arctotheca prostrata (Salisb.) Britten (Asteraceae) in South Africa. Insecta Mundi 095: 1-23.</ref> Several species of ''Cassida'' are important agricultural pests,<ref>Chaboo, C.S. 2007. Biology and phylogeny of the Cassidinae (tortoise and leaf-mining beetles) (Coleoptera: Chrysomelidae). Bulletin of the American Museum of Natural History 305:250pp.</ref> in particular ''C. vittata'' and ''C. nebulosa'' on sugar beet and spinach. The thistle tortoise beetle (''Cassida rubiginosa'') has been used as a biological control agent against Canada thistle.
The genus name is derived from Latin ''Cassis'' for a metal helmet.
There are at least 430 described species in ''Cassida''.<ref name=gbif/><ref name=bugref/> This genus contains the most species of all Cassidinae.<ref>{{cite book |author1=Boroweic, L. |date=1999 |title=A world catalogue of the Cassidinae (Coleoptera: Chrysomelidae). Biologica Silesiae}}</ref> Larvae build shields with their feces and exuviae, a widespread pattern of tortoise beetles.<ref>Chaboo, C.S., S. Adam, K. Nishida, L. Schletzbaum. 2023. Architecture, construction, retention, and repair of fecal shields in three tribes of tortoise beetles (Insecta: Coleoptera: Chrysomelidae Cassidinae: Cassidini, Mesomphaliini, Spilophorini). ZooKeys Special Issue, Research on Chrysomelidae 9. ZooKeys 1177: 87–146. DOI: 10.3897/zookeys.1177.102600</ref>
==See also== * List of Cassida species
==References== {{Reflist|refs= <ref name=gbif> {{Cite web| title=''Cassida'' | url=https://www.gbif.org/species/1048148 | website=GBIF | access-date=2018-04-25 }}</ref> <ref name=bugref> {{Cite web| title=''Cassida'' Genus Information | url=https://bugguide.net/node/view/13537 | website=BugGuide.net | access-date=2018-04-25 }}</ref> }}
==Further reading== {{refbegin}} * {{Cite journal | last1 = Bouchard | first1 = Patrice | last2 = Bousquet | first2 = Yves | last3 = Davies | first3 = Anthony E. | last4 = Alonso-Zarazaga | first4 = Miguel A. | last5 = Lawrence | first5 = John F. | display-authors = 4 | date = 2011 | title = Family-group names in Coleoptera (Insecta) | journal = ZooKeys | publisher = Pensoft Publishers | issue = 88 | pages = 1–972 | issn = 1313-2989 | doi = 10.3897/zookeys.88.807 | pmid = 21594053 | pmc = 3088472 | doi-access = free | bibcode = 2011ZooK...88....1B }} * {{Cite book | last1 = Clark | first1 = S. M. | last2 = Le Doux | first2 = D. G. | last3 = Riley | first3 = E. G. | last4 = Gilbert | first4 = A. J. | last5 = Sullivan | first5 = J. M. | display-authors = 4 | date = 2004 | title = Host Plants of Leaf Beetle Species Occurring in the United States and Canada | publisher = Coleopterists Society | isbn = 9780972608732 }} * {{Cite book | last1 = LeConte | first1 = J. L. | date = 1861 | title = Classification of the Coleoptera of North America | url = https://www.biodiversitylibrary.org/item/85732 | series = Smithsonian Miscellaneous Collections | publisher = Smithsonian Institution | volume = 3 | issue = 136 | isbn = 0665100558 | doi = 10.5962/bhl.title.38459 | doi-access = free }} {{refend}}
==External links== {{refbegin}} * {{Commons-inline}} {{refend}} {{clear}}
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Category:Chrysomelidae genera Category:Cassidinae Category:Animal taxa named by Carl Linnaeus Category:Cassida