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)
Superfamily Scarabaeoidea (Scarab, Stag and Bess Beetles)
Family Scarabaeidae (Scarab Beetles)
Subfamily Melolonthinae (May Beetles and Junebugs)
Synonyms and other taxonomic changes
Philochloenia Dejean 1833, Anaeretes Dejean 1836, Dichelonycha Kirby 1837
Explanation of Names
27 spp. in our area(1)(2)
Elongated, rather flattened metallic green or brown scarabs covered with silky pubescence(4)
eyes large, prominent
claws cleft at tip
The genus can be separated into two groups based on the presence of a longitudinal groove ("sulcus") on the pronotum vs pronotum with only a faintly impressed, if any, mid-line
Nearctic: Transcontinental, Canada to Mexico(6)
On shoots and young leaves of herbaceous or woody plants, sometimes on flowers(4)
Typically, late spring(4)
; Apr-Jun in SC(5)
Adults feed in spring on the leaves of trees, frequently conifers, sometimes causing conspicuous defoliation. Larvae feed on roots(7)
At least some are both nocturnal and diurnal(4)
; several species come to lights.
Saylor L.W. (1945) Revision of the scarab beetles of the genus Dichelonyx
. Bull. Brooklyn Entomol. Soc. 40(5): 137-158. (Full text
Cornell J.F. (1972) A taxonomic review of the beetle genus Dichelonyx
Harris in North America (Scarabaeidae: Melolonthinae). Ph.D. Dissertation, Oregon State U., Corvallis. 253 pp. (Full text
|1.||The Scarabaeoid Beetles of Nebraska|
Brett C. Ratcliffe & M.J. Paulsen. 2008. University of Nebraska State Museum, Vol 22, 570 pp.
|3.||Field Guide to Beetles of California|
Arthur V. Evans and James N. Hogue. 2006. University of California Press.
|4.||A Manual of Common Beetles of Eastern North America|
Dillon, Elizabeth S., and Dillon, Lawrence. 1961. Row, Peterson, and Company.
|5.||Scarab beetles (Coleoptera: Scarabaeidae) of South Carolina|
Phillip J. Harpootlian. 2001. Clemson University Public Service.
|6.||The Beetles of Northeastern North America, Vol. 1 and 2.|
Downie, N.M., and R.H. Arnett. 1996. The Sandhill Crane Press, Gainesville, FL.
|7.||Western Forest Insects|
Furniss, R.L. and Carolin, V.M. 1977. 1977. U.S.D.A. Forest Service Misc. Publ. 1339.