Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Information about the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Griburius equestris

Griburius equestris (Olivier) - Griburius equestris Griburius equestris (Olivier) - Griburius equestris Griburius equestris (Olivier) - Griburius equestris Griburius equestris (Olivier) - Griburius equestris Griburius equestris (Olivier) - Griburius equestris Griburius equestris (Olivier) - Griburius equestris Beetle - Griburius equestris Griburius equestris
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 Chrysomeloidea (Long-horned and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Cryptocephalinae (Case-bearing Leaf Beetles)
Tribe Cryptocephalini
Subtribe Pachybrachina
Genus Griburius
Species equestris (Griburius equestris)
Synonyms and other taxonomic changes
Griburius equestris (Olivier)
Orig. Comb: Cryptocephalus equestris Olivier, 1808
Numbers
5 spp. n. of Mex. (1)
Size
3 mm (Riley et al. 2001)
Identification
Our basis for assigning Olivier's name is the dorsal color pattern and the color of the abdomen. His illustration depicts a yellow Griburius beetle with two round, black maculae on each elytron, the anterior-most being isolated and well-separated from the anterior elytral margin. The abdomen is described as black with the sides marked with yellow and with a black median spot. We interpret the latter as a black pygidial spot. (Riley et al. 2001)
Range
TX, FL-GA (1), + NC (NSR per BG data)
Season
mostly April, but also Mar, May (Riley et al. 2001)(BG data)
Food
recorded from Quercus virginiana, Quercus laevis. Also reared from case-bearing larvae collected from lichens on oak in Florida. (Riley et al. 2001)(2)
Remarks
After study of Olivier's original description and figure, we believe Cryptocephalus equestris Olivier, 1808 is correctly applied to an uncommon and little-known Griburius species of the southeastern United States and Texas. (Riley et al. 2001)
See Also
- Range: FL-GA
Griburius larvatus Newman is a similarly colored species that is common in Florida.
Another, yet undetermined Griburius species which is similar in appearance is common in southern Texas and reaches eastward to Louisiana.
Olivier's limited description applies fairly well to all three species.
We have seen specimens of all three species in various collections identified as G. equestris. (Riley et al. 2001)
Print References
Newman, E. 1840. Descriptions of eight new Cryptocephali, captured near St. John's Bluff, E. Florida by Edward Doubleday, Esq. The Magazine of Natural History 4: 249-250. Full Text
Riley, E.G., S.M. Clark, and A.J. Gilbert. 2001. New records, nomenclatural changes, and taxonomic notes for select North American leaf beetles (Coleoptera: Chrysomelidae). Insecta Mundi, 15: 1-17. Full PDF
Works Cited
1.Catalog of Leaf Beetles of America North of Mexico
Ed Riley, Shawn Clark, and Terry Seeno. 2003. Coleopterists Society.
2.Host plants of leaf beetle species occurring in the United States and Canada
Clark et al. 2004. Coleopterists Society, Special Publication no. 2, 476 pp.