Chalcosoma
Chalcosoma is a genus of Southeast Asian rhinoceros beetles. They are known as three horned rhinoceros beetles for their trident like horn. They are endemic to Southeast Asia. Species
Biolib lists four species:

Chalcosoma atlas
Chalcosoma chiron (incl. synonyms Chalcosoma caucasus and Chalcosoma janssensi)
Chalcosoma moellenkampi
Chalcosoma engganensis

See also 

 List of largest insects

References

External links

Dynastinae