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Species Trichodes nutalli - Red-blue Checkered Beetle

Red-blue Checkered Beetle - Trichodes nutalli Trichodes nutalli - I reckon - Trichodes nutalli Checkered Beetle - Trichodes nutalli I think Checkered Beetle - Trichodes nutalli Checkered Beetle - Trichodes nutalli Red-blue Checkered Beetle - Trichodes nutalli Black and red beetle - Trichodes nutalli Beetle - Trichodes nutalli
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Cleroidea (Bark-gnawing, Checkered and Soft-winged Flower Beetles)
Family Cleridae (Checkered Beetles)
Genus Trichodes
Species nutalli (Red-blue Checkered Beetle)
Size
8-11mm (1)
Identification
Base color is dark blue, purple or greenish blue. Elytra darker with reddish to yellowish markings. (1)
Range
Colorado, Eastern US/Canada, south to VA/TN (1)(2)
Habitat
Found on flowers of wild rose, dandelion, daisy, yarrow, Achillea millefolium and others (2)
Food
It is a predator of larvae in the nests of bees and wasps.
Remarks
There definitely appears to be some confusion about the proper spelling of the species name.
T. nutalli (3)(4)(1)
T. nuttalli (2)(ITIS)

I "asked the audience" and saw 23 google hits with one 't' versus 4 with both, so I went with one.
Print References
Color illustration on inside front cover of volume 1 of Dillon and Dillon (4)
Figure 536 in How to Know the Beetles (1)
Internet References
Works Cited
1.How to Know the Beetles
By Ross H. Arnett, N. M. Downie, H. E. Jaques
2.American Insects: A Handbook of the Insects of America North of Mexico
By Ross H. Arnett
3.A Comprehensive Guide to North American Insects
By Charles S. Papp
4.A Manual of Common Beetles of Eastern North America
By Dillon, Elizabeth S., and Dillon, Lawrence