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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Coccinelloidea » Coccinellid group » Lady Beetles (Coccinellidae) » Scymninae » Dusky Lady Beetles (Scymnini) » Scymnus » pronotum all orange (Scymnus pronotum all orange)

pronotum all orange

Classification · Size · Identification · Range · Remarks · See Also · Print References · Works Cited

Coccinellidae (Ladybird Beetles) - Scymnus

Scymnus cervicalis Mulsant - Scymnus cervicalis

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

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

Size

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

Identification

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

Range

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)

Remarks

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.

Contributed by Mike Quinn on 23 August, 2015 - 12:51pm
Last updated 11 July, 2018 - 9:34am

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