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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Scarabaeoidea » Scarab Beetles (Scarabaeidae) » Rhinoceros Beetles (Dynastinae) » Oryctini » Rhinoceros Beetles (Xyloryctes) » Xyloryctes thestalus

Species Xyloryctes thestalus

Classification · Explanation of Names · Size · Identification · Range · Life Cycle · Remarks · Works Cited
Big horned scarab - Xyloryctes thestalus - male Xyloryctes thestalus Bates - Xyloryctes thestalus - male Xyloryctes thestalus - female Male, Xyloryctes thestalus? - Xyloryctes thestalus - male Female, Xyloryctes thestalus? - Xyloryctes thestalus - female Arizona Beetle - Xyloryctes thestalus - male Male, Xyloryctes thestalus? - Xyloryctes thestalus - male Arizona Beetle - Xyloryctes thestalus - 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 Oryctini
Genus Xyloryctes (Rhinoceros Beetles)
Species thestalus (Xyloryctes thestalus)
Explanation of Names
Xyloryctes thestalus Bates 1888
Size
23.5-43.0 mm(1)
Identification
has a distinctly protuberant pronotal process with an emarginate apex in the males; elytra vary from smooth to longitudinally furrowed with punctures; apex of metatibia has 7-8 small teeth; parameres with a relatively long basolateral flange(1)
Range
sw US (AZ to w. TX, UT) to Guatemala - Map(1)
Life Cycle
Adults are commonly attracted to lights and to Arizona ash, Fraxinus velutina (Oleaceae)(1)
at high risk of endangerment due to the EAB (2)
Remarks
former records of X. jamaicensis from AZ, NM, and sw. TX refer to X. thestalus(1)
Works Cited
1.Xyloryctes Hope, 1837 (Coleoptera: Scarabaeidae: Dynastinae: Oryctini) in the United States. Qui es et ubi fuisti et quo vadis?
Ratcliffe, B.C. 2009. Insecta Mundi 0100: 1-11.
2.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 Charley Eiseman on 23 October, 2009 - 12:24pm
Additional contributions by Mike Quinn, v belov
Last updated 29 March, 2022 - 10:14am

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