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pronotum all orange

Coccinellidae (Ladybird Beetles) - Scymnus beetle - Scymnus kansanus beetle - Scymnus kansanus beetle - Scymnus kansanus beetle - Scymnus kansanus beetle - Scymnus kansanus Dusky Lady Beetle - Scymnus kansanus Scymnus cervicalis Mulsant - Scymnus cervicalis
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
S. kansanus: 1.8-2.2 mm long, 1.25-1.45 mm wide
S. cervicalis: 1.7-2.3 mm long, 1.28-1.65 mm wide
S. kansanus v. S. cervicalis

Both species:
Light brown, unmarked pronotum
Dark brown or black elytra with narrow pale rear margin

S. kansanus:
Elongated shape
Prosternal carinae converging anteriorly
5th abodominal sternum feebly emarginate

S. cervicalis:
Oval shape
Prosternal carinae not converging anteriorly
5th abdominal sternum strongly emarginate
S. kansanus - Scattered records: KS-VA-QC-NE, + TX, SC - Map (1)
S. cervicalis - e US to CA: (TX-FL-MS-KS, AZ-CA) - Map (1)
S. semiruber - e US (TX-FL-MA-WI) - Map (1)
Slightly separable by range: only S. kansanus occurs in northern New England, Wisconsin, and Colorado, while only S. cervicalis occurs in Georgia and Florida.
The species are almost identical dorsally; a ventral image is needed for certain identification where the ranges overlap.
See Also
Mealybug Destroyer - Cryptolaemus montrouzieri Mulsant
- Range: widely dist., esp. s. US
Size: Adult 3.4 - 4.5 mm
Print References
Gordon, 1976, esp. pp. 78-81, figs. 116-119, map 14 (S. kansanus); pp. 95-98, figs. 141-143, map 19 (S. cervicalis).(2)
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.