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TaxonomyBrowse
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Species Scymnus kansanus - Kansas Lady Beetle

beetle - Scymnus kansanus beetle - Scymnus kansanus beetle - Scymnus kansanus beetle - Scymnus kansanus Dusky Lady Beetle - Scymnus kansanus Dusky Lady Beetle - Scymnus kansanus Kansas Lady Beetle - Scymnus kansanus - female  Scymnus kansanus? - Scymnus kansanus - female
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 Coccinelloidea
No Taxon (Coccinellid group)
Family Coccinellidae (Lady Beetles)
Subfamily Scymninae
Tribe Scymnini (Dusky Lady Beetles)
Genus Scymnus
No Taxon (pronotum all orange)
Species kansanus (Kansas Lady Beetle)
Explanation of Names
Scymnus kansanus Casey, 1899
Size
1.8-2.2 mm long (1)
Identification
Pronotum reddish-yellow with no markings
Elytra black with narrow reddish-yellow rear margin
Elongated shape
Now for the technical part: prosternum with intercoxal carinae converging anteriorly
Fifth abdominal sternum not emarginate, feebly depressed apically

Last couplet in Gordon's key: "Form elongate, sides of elytra parallel at least medially; Pronotum narrower than elytra at base; male with last sternum barely perceptibly impressed" (1)
Range
scattered e. US records (TX-SC-QC-NE) - Map (1), most records north of the Mason-Dixon Line...
Remarks
Type Locality: Kansas
See Also
Scymnus cervicalis is almost identical from above, except for being oval instead of elongated. The only way to tell the two species apart for sure is by checking the underside: S. cervicalis does not have the intercoxal carinae converging, and the fifth sternum is emarginate and distinctly depressed.
- Range: e. US to s. CA
The two species are slightly separable by range; only S. kansanus occurs in northern New England, Wisconsin, and Colorado, while only S. cervicalis occurs in Georgia and Florida.
Print References
Casey, T.L. 1899. A revision of the American Coccinellidae. Journal of the New York Entomological Society 7: 71-169.
Gordon, 1976, esp. pp. 78-81, figs. 116-119, map 14. (2)
Internet References
Type Info - Smithsonian
Works Cited
1.The Coccinellidae (Coleoptera) of America North of Mexico
Robert D. Gordon. 1985. Journal of the New York Entomological Society, Vol. 93, No. 1.
2.The Scymnini (Coleoptera: Coccinellidae) of the United States & Canada: Key to genera and revision of Scymnus, Nephus, & Diomus
Robert D. Gordon. 1976. Bulletin of the Buffalo Society of Natural Sciences, Buffalo, NY, Vol 28.