Genus Helesius

Classification · Explanation of Names · Numbers · Identification · Range · Remarks · Print References · Works Cited

Helesius nubilans Casey - Helesius nubilans - female

Helesius nigripennis (LeConte) - Helesius nigripennis

Helesius nubilans Casey - Helesius nubilans

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 Hyperaspidini

Genus Helesius

Explanation of Names

Helesius Casey 1899

Numbers

2 spp. n. of Mex. (1)

Identification

This genus is distinctive in the North American hyperaspine fauna because the legs are compressed and the hind femur is extremely robust.

Also, the apex of each tibia is thickened and excavated, Gordon's Figures (1)

Gordon's Key:

Punctures on head and elytron dense, Colorado, Montana .... nigripennis (LeConte)

Punctures on head not apparent, barely perceptible, punctures on elytron fine, indistinct; Texas .... nubilans Casey (1)

Range

Rocky Mtns to s. TX (1)

Remarks

very limited number of records for both spp. (1)

a female spmn in the USNM from San Antonio, Texas has an entirely red pronotum and is larger (3.5 mm long) than normal for H. nubilans. There is a good possibility that the specimen represents an undescribed species, but a male is needed to ascertain this. (1)

Print References

Casey, T.L. 1899. A revision of the American Coccinellidae. Journal of the New York Entomological Society 7: 71-169. (p.129)

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.

Contributed by Mike Quinn on 27 September, 2010 - 10:51am
Additional contributions by Chuck Entz
Last updated 20 November, 2017 - 10:38am

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