Fauna
Insect

Eastern Hercules Beetle

Dynastes tityus

Also known as Unicorn Beetle, Rhinoceros Beetle, Eastern Rhinoceros Beetle

Eastern Hercules beetles are among the largest and heaviest insects in North America, named for the sweeping horns borne by adult males. These striking beetles display shell covers that range from greenish-gray to yellowish-tan with dark brownish spots, changing color to solid black in high humidity. Larvae spend up to three years inside decaying oak and ash logs consuming rotting wood before emerging as short-lived adults to mate.

NocturnalLarge InsectForest Dweller
Eastern Hercules Beetle reference1 / 7
(c) Douglas Goldman, some rights reserved (CC BY-SA), uploaded by Douglas Goldman · cc-by-sa
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Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Key facts
Diet & preyDecaying Hardwood, Tree Sap, Overripe Fruit
Predators
  • Raccoons
  • Opossums
  • Insectivorous Birds
ThreatsHabitat loss, removal of fallen timber and decaying stumps
HabitatsDeciduous forests, hardwood groves, suburban woodlands
Life span2–3 years
Classification
  1. OrderColeoptera
  2. FamilyScarabaeidae
  3. GenusDynastes
  4. SpeciesDynastes tityus
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Sharp tarsal claws and male horns can pinch skin; observe safely without picking them up.
Responsible observation
  • Finding Adults: Look near bright porch lights and illuminated walls near hardwood forests on warm summer nights.
  • Handling Caution: Allow beetles to crawl over flat palms rather than gripping them to avoid claw scratches.
  • Habitat Support: Retain fallen logs and rotting stumps in woodland areas to provide critical larval food.
Related species
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