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Genus Axion

Helmet Bug - Axion tripustulatum Three-spotted Lady Beetle - Axion tripustulatum Axion tripustulatum (DeGeer) - Axion tripustulatum Chilocorinae - Axion plagiatum Coccinellid - Axion plagiatum Axion Plagiatum? - Axion plagiatum Axion Plagiatum? - Axion plagiatum Coccinellidae pupa? - Axion plagiatum
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 Chilocorinae
Genus Axion
Synonyms and other taxonomic changes
First described in 1850 by Étienne Mulsant as a subgenus of Exochomus
Numbers
Two species in North America:
Axion plagiatum
Axion tripustulatum
Size
Length 5.0 to 7.0 mm, width 4.0 to 6.25 mm.(1)
Range
A. tripustulatum - New York to Florida, west to Colorado and Texas.
A. plagiatum - Louisiana to California, north on the Pacific coast to Oregon.

The range map for Axion in Gordon, 1985, is mislabeled, showing A. tripustulatum in the West and A. plagiatum in the East.
Food
Scale insects.
Print References
Gordon, 1985, especially pp. 611-619, figures 504-507.(1)
Internet References
Species des coléoptères trimères sécuripalpes, p.477    Mulsant's original description (in French)
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.