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TaxonomyBrowse
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Species Phaedon desotonis

Beetle - Phaedon desotonis Pool beetle 3 - Phaedon desotonis Phaedon desotonis Balsbaugh - Phaedon desotonis Phaedon desotonis Balsbaugh - Phaedon desotonis Phaedon desotonis Balsbaugh - Phaedon desotonis Phaedon desotonis Balsbaugh - Phaedon desotonis Phaedon desotonis Balsbaugh - Phaedon desotonis Phaedon desotonis Balsbaugh - Phaedon desotonis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Chrysomelinae
Tribe Chrysomelini
Subtribe Chrysomelina
Genus Phaedon
No Taxon (subgenus Phaedon)
Species desotonis (Phaedon desotonis)
Other Common Names
DeSoto Leaf Beetle (DLB), Coreopsis Leaf Beetle (CLB)
Explanation of Names
Phaedon desotonis Balsbaugh 1983
Described from a single male collected in 1963 in DeSoto State Park, AL(1)
Size
3-5 mm(2)
Identification
Similar to P. virdis; see dorsal habitus photos of both and diagnostic features(2)
Range
TX-FL-SC-OK (2)(Smith-Rodgers 2012)
GA, SC, TN (Wheeler & Hoebeke 2001)
AR(3)
FL(2)
TX (E.G. Riley, pers. comm. to MAQ)
OK (BG data 2008)
Food
Hosts: Coreopsis spp. and Bidens aristosa (Asteraceae) (Braman et al. 2002, Smith-Rodgers 2012, Thomas 2004)(2); common on Greenthread (Thelesperma filifolium, Asteraceae) in TX & AR (Smith-Rodgers 2012)(4)
Life Cycle
Adults overwinter (Wheeler & Hoebeke 2001)
Remarks
Apparently a case where a relatively rare plant-feeding insect species has 'jumped' from its rare native host to related common hosts and is now expanding its geographical range. (Smith-Rodgers 2012)
There is some evidence that this beetle may be some foreign species recently adventive to North America. (S.M. Clark, pers.comm. to =v=, 29.v.2014)
See Also

Phaedon viridis -- across e. NA, confined to mustard (Brassica) and pepperweed (Lepidium) (Brassicaceae) (Thomas 2004)
Print References
Balsbaugh, E.U., Jr. (1983) A taxonomic revision of the genus Phaedon north of Mexico (Coleoptera: Chrysomelidae). North Dakota Insects Schafer-Post Series 15, 73 pp.
Braman S.K., Pendley A., Corley W. (2002) Plant susceptibility to and seasonal occurrence of Phaedon desotonis Balsbaugh, a leaf beetle attacking Coreopsis. Journal of Environmental Horticulture 20: 220-223.
Thomas M.C. (2004) Phaedon desotonis Balsbaugh (Coleoptera: Chrysomelidae), a Coreopsis (Asteaceae) pest new to Florida. Florida Division of Plant Industry, DACs-P-01670. 2 pp. Full PDF (2)
Wheeler A.G., Jr., Hoebeke E.R. (2001) Phaedon desotonis Balsbaugh (Coleoptera: Chrysomelidae): New distribution records, first host-plant associations, and seasonality of a seldom-collected beetle of rock-outcrop communities. Proceedings of the Entomological Society of Washington 103: 826-831. Full text
Internet References
Photos of central Texas outbreak - Smith-Rodgers 2012, with comments by E.G. Riley
Pest Alert - Florida Department of Agriculture and Consumer Services
Coreopsis Leaf Beetle - Texas Invasive Species Institute
Works Cited
1.A taxonomic revision of the genus Phaedon north of Mexico (Coleoptera: Chrysomelidae)
Balsbaugh E.U. 1983. North Dakota Insects Schafer-Post Series 15, 73 pp.
2.Thomas M.C. (2004) Phaedon desotonis Balsbaugh (Coleoptera: Chrysomelidae), a Coreopsis (Asteraceae) pest new to Florida
3.Catalog of Leaf Beetles of America North of Mexico
Ed Riley, Shawn Clark, and Terry Seeno. 2003. Coleopterists Society.
4.Host Plants of Leaf Beetle Species Occuring in the United States and Canada
Clark et al. 2004. Coleopterists Society, Special Publication no. 2, 476 pp.