Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Dynastes - Hercules Beetles

Eastern Hercules Beetle - Dynastes tityus - female Eastern Hercules Beetle - Dynastes tityus - male Eastern Hercules Beetle - Dynastes tityus - female Dynastes grantii Eastern Hercules Beetle - Dynastes tityus - female Rhino beetle - Dynastes tityus - male Large Beetle - Dynastes tityus Male, Grant's Hercules Beetle - Dynastes grantii - male
Classification
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 Dynastinae (Rhinoceros Beetles)
Tribe Dynastini
Genus Dynastes (Hercules Beetles)
Other Common Names
Unicorn Beetles
Synonyms and other taxonomic changes
Dynastes MacLeay, 1819. Synonyms, etc.:
=Theogenes Burmeister 1847
listed as Dynastes Kirby, 1825 in some sources
Explanation of Names
Latin from Greek dunastes (δυναστης) 'lord, ruler'(1)
Numbers
2 spp. in our area, 8 spp. total(2)
Size
40-140 mm (latter including tropical members of genus)
Identification
Huge, robust beetles. Males with prominent horns.
Range
temperate NA to the Neotropics; in our area, most of the US(2)
Habitat
Forests. Adults are nocturnal and come to lights.
Food
larvae feed on rotting wood, adults are frugivores (some have been observed eating tree sap)(2)
Life Cycle
2-3 years(2)
Print References
Ritcher's (1966) key to separating larvae:
Claws bearing 2 setae (Fig. 332) --- Dynastes
Claws bearing 3 or 4 setae (Figs. 333 and 334) --- Strategus (3)
Internet References
Info on D. hercules (West Indies and Central America), the largest member of the genus