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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Scarabaeoidea » Scarab Beetles (Scarabaeidae) » Rhinoceros Beetles (Dynastinae) » Dynastini » Hercules Beetles (Dynastes) » Grant's Hercules Beetle (Dynastes grantii)

Species Dynastes grantii - Grant's Hercules Beetle

Classification · Other Common Names · Explanation of Names · Size · Identification · Range · Season · Food · Life Cycle · Remarks · See Also · Print References · Internet References · Works Cited
Grant's Hercules Beetle - Dynastes grantii - male Western Hercules Beetle (?) - Dynastes grantii Scarabid - Dynastes grantii Male and female, Grant's Hercules Beetle - Dynastes grantii - male - female Eggs, Grant's Hercules Beetle - Dynastes grantii Larva, Grant's Hercules Beetle - Dynastes grantii Larva, Grant's Hercules Beetle - Dynastes grantii Dynastes grantii - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
Superfamily Scarabaeoidea
Family Scarabaeidae (Scarab Beetles)
Subfamily Dynastinae (Rhinoceros Beetles)
Tribe Dynastini
Genus Dynastes (Hercules Beetles)
Species grantii (Grant's Hercules Beetle)
Other Common Names
Grant's Rhinoceros Beetle, Western Hercules Beetle
Explanation of Names
Dynastes grantii Horn 1870
Type Locality: Fort Grant, Arizona
Size
males, including horn, 50-85 mm length
Identification
Distinctive in its Southwestern range.
Range
sw.UT-AZ-s.NM / nw. Mex. - Map (1)
Season
Aug-Nov (BG data)
Food
Larvae are found in rotten wood. (2) Records have been made on sycamore Platanus occidentalis and Platanus racemosa.
Adults usually found in association with Arizona Ash (Fraxinus velutina, Oleaceae)
Life Cycle
Adults are most often collected at lights (Menke and Parker 1988)
Remarks
Dynastes grantii is the largest scarab in the w. US, and is relatively common in Arizona.
but is considered by New Mexico to be a "Species of Greatest Conservation Need" (SGCN) (3)
at high risk of endangerment due to the EAB (4)
See Also
Dynastes tityus - Eastern Hercules Beetle
Print References
Horn, G.H. 1870. Contributions to the coleopterology of the United States. Transactions of the American Entomological Society, 3: 69-97. (Full PDF)
Menke, A.S. & F.D. Parker. 1988. Adult feeding and distribution of Dynastes granti Horn (Coleoptera: Scarabaeidae). Coleopterists Bulletin, 42(2): 161-164.
Internet References
Type - MCZ, Harvard
Texas Entomology - Mike Quinn, 2007
Works Cited
1.Global Biodiversity Information Facility (GBIF)
2.White Grubs and Their Allies, a Study of North American Scarabaeoid Larvae
Paul O. Ritcher. 1966. Oregon State University Press, Corvallis. 219 pp.
3.New Mexico "Species of Greatest Conservation Need" (SGCN)
4.Ecological impacts of the emerald ash borer. Pp. 15-62. In: R.G. Van Driesche (ed.), Biology and Control of Emerald Ash Borer.
Wagner, D.L. and K. Todd. 2015. USDA Technical Bulletin FHTET-2014-09. Morgantown, WV.
Contributed by Cotinis on 25 August, 2007 - 3:37am
Additional contributions by Beatriz Moisset, Phillip Harpootlian, Bbarnd, Chuck Entz, Mike Quinn, David Ferguson, Arturo Santos
Last updated 2 September, 2023 - 3:45pm

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