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Species Gymnetis caseyi - Harlequin Flower Beetle

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Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Scarabaeoidea (Scarab, Stag and Bess Beetles)
Family Scarabaeidae (Scarab Beetles)
Subfamily Cetoniinae (Fruit and Flower Chafers)
Tribe Gymnetini
Genus Gymnetis
Species caseyi (Harlequin Flower Beetle)
Synonyms and other taxonomic changes
=Gymnetis flavomarginata, of authors, not Blanchard
=Gymnetis sallei of authors, not Schaum
G. sallei and G. flavomarginata correctly apply to species that occur from southern Mexico south into South America
Explanation of Names
Patronym for Thomas Casey (1857-1925), one of the most prolific workers of North American Coleoptera.
Numbers
Ratcliffe determined 18 spp. within Gymnetis, but only G. caseyi reaches the U.S.
Range
TX-LA, FL / Tamaulipas & San Luis Potosí, Mexico (1),(2)
Season
There are 77 G. caseyi specimens in Texas A&M collection collected between March and December, most from May to September.
Food
Adults readily come to bait.
However, little is known about the habits of the larvae. Ritcher (1966) reported three third-stage larvae collected December 31, 1919, at Blue Mott, Victoria Co., TX in rotten moss in a hollow anacua (Ehretia anacua) tree. (3)
See Also
Gymnetina cretacea (LeConte) is frequently incorrectly listed on various websites as Gymnetis cretacea.
Gymnetina cretacea occurs in Arizona and New Mexico. This species is similarly patterned, but black and white vs. yellow.
There may be a second, similar species of Gymnetina occurring in AZ-NM.
Print References
Antoine, P. 2001. Contribution a la connaissance des Gymnetini (Coleoptera, Cetoniidae). Coléoptères 7: 113-136.
Riley, E.G. & C.S. Wolfe. 2003. An annotated checklist of the Scarabaeoidea of Texas. Southwestern Entomologist, Supplement, no. 26. 37 pp.
Ritcher, P.O. 1966. White Grubs and Their Allies, a Study of North American Scarabaeoid Larvae. Oregon State University Monograph Series No. 4: 1-219.
Internet References
Texas Beetles - Mike Quinn, 2008
Ratcliffe, B.C. Monography and Phylogeny of New World Gymnetini (Cetoniinae). University of Nebraska