Synonyms and other taxonomic changes
Euphoria kernii Haldeman, 1852
Euphoria cernii Haldeman, 1852
Euphoria clarki LeConte, 1853
Euphoria texana Schaufuss, 1863
Euphoria retusa Casey, 1915
Euphoria wichitana Casey, 1915
Euphoria connivens Casey, 1915
is a misspelling (2)
Explanation of Names
Haldeman originally wrote the name as E. cernii but specifically stated it was named after a Mr. Kern. The spelling "kernii" has been in prevailing usage and is retained as the proper spelling per the ICZN code. (3)
This species is extremely variable in its color and pattern ranging from all black to nearly all yellow with all stages in between. (3)
sc US (AZ-TX-NE-CO) / ne Mex. - Map (4)(5)
(plus a few records from CA, SD-MN)
Adults have been reported from the flowers and/or fruits of the following plants (4)
Pricklypoppy - Argemone (Papaveraceae)
Pricklypear - Opuntia (Cactaceae)
Thistle - Cirsium (Asteraceae)
Yucca - Yucca (Liliaceae)
Mesquite - Prosopis (Fabaceae)
Winecup - Callirhoe (Malvaceae)
Wheat - Triticum (Poaceae)
Roses - Rosa (Rosaceae)
Adults have been associated with Packrat Middens, Neotoma micropus. (Hardy 1988).
Grant, V., K.A. Grant, & P.D. Hurd. 1979. Pollination of Opuntia lindheimeri and related species. Plant Systematics and Evolution, 132: 313-320.
Haldeman, S.S. 1852. Insects, Pp. 366-378 In: H. Stansbury, Exploration and survey of the valley of the Great Salt-Lake of Utah. Washington, D.C. 487 p.
Hardy, A.R. 1988. Studies in the Euphoriina of the Americas (Coleoptera: Scarabaeidae). I. Introduction and generic concepts. The Coleopterists Bulletin, 42(1): 1-9.
Schneider, E.L., & D.M. Nichols. 1984. Floral Biology of Argemone aurantiaca (Papaveraceae). Bulletin of the Torrey Botanical Club, 111(1): 1-7.