Synonyms and other taxonomic changes
Euphoria sepulcralis (Fabricius)
Cetonia sepulcralis Fabricius 1801 - Orig. Comb.
Euphoria rufina (Gory and Percheron) -
Newly synonymized under:
Euphoria leucographa (Gory and Percheron)
(1)
Euphoria leucographa (Gory and Percheron) -
Revised status (1)
Euphoria nitens Casey, 1915 -
New synonymy (1) Explanation of Names
Common name proposed here, "spangled" is a coinage, based on white marks scattered on dark elytra. "Dark Flower Scarab" is also an appropriate common name.
sepulcralis (L). Of or relating to a sepulchre (tomb); "sepulchral inscriptions";. Refers, perhaps, to dark coloration and/or white markings? (Based on Internet searches.)
Identification
Two color forms:


(previously separate subspecies)
(1)
Very dark elytra with scattered light spots. Variable, some individuals have weak spotting and have rusty hairs on elytra.
Range
e. US (TX-FL-NY-NE) / Mex. -
Map (1)(2)Habitat
freq. coll'ed in a var. of habitats
(1)Food
Adults appear on foliage of late spring flowers, such as Marshallia, so presumably take pollen and nectar. In Texas, reported to feed on twig of Blackjack Oak, Quercus marilandica.
Eggs are laid in soil under organic matter or manure, and this is where grubs develop.
Life Cycle
Spring and late-summer occurrence suggests two generations per year, or that adults overwinter, perhaps.
See Also
Protaetia fusca (Herbst) - non-punctate pronotum

- Range: se FL / pantropics
Euphoria devulsa Horn

- Range: much of TX and e. NM
Det. J. Orozco, 2011