
Community identification
Hercules beetle (likely female)
Dynastes hercules
- Order & Family
- Coleoptera; Scarabaeidae (subfamily Dynastinae)
- Size
- Adults typically measure 4–7.5 cm (1.6–3 in), with males generally larger; females lack the prominent horns.
Natural Habitat
Tropical and subtropical forests of Central and northern South America and some Caribbean islands, especially humid forest floors and decaying logs.
Diet & Feeding
Larvae feed on decaying wood and organic plant matter. Adults mainly consume fruit, sap, and other sugary plant fluids.
Behavior Patterns
Mostly nocturnal and attracted to lights; adults fly seasonally, while larvae develop for many months to years in rotting wood. Males use their horns in contests, whereas females are hornless.
Risks & Benefits
Harmless to people and not venomous; its spiny legs can grip or scratch if handled. Larvae help decompose wood and recycle nutrients, and adults contribute modestly to forest food webs and pollination.