…a large species of scarabaeid beetle that is native to southern Asia, occurring mostly in Indonesia. Like other members of the genus Chalcosoma C. atlas is noted for its large size, with individuals reaching lengths of around 25-60 mm (1-2.4 in). Like other scarabaeid beetles atlas beetles are sexually dimorphic with males being large than the females and possessing specialized horns on their head and thorax which are used to fight other males.
Also known as the elephant beetle or coconut palm beetle, the common rhinoceros beetle is a species of Dynastine scarab beetle occurs in Australia, where it occurs in the northern and eastern portion of the continent. It is also known to occur in Indonesia as well.
Sometimes known as the “fighting beetle”, the Siamese rhinoceros beetle is large species of dynastine scarab beetle (Dynastinae) that occurs throughout most of Southeast Asia, south to Australia and east to the Solomon Islands. Like other scarabs the larvae of X. gideon live in the soil and remain there until adulthood. Adult X. gideon are mainly active at night and likely feeds on fruit, plant sap and nectar.
Also known as the Moellenkampi beetle, the Three-horned rhinoceros beetle is a large species of dynastine beetle that is seemingly endemic to the Island of Borneo. C. moellenkampi is noted for its prominent three ‘horns’ on its head and thorax which are sued by males to fight with each other to gain mating rights. Like other members of the genus Chalcosoma the larvae of C. moellenkampi feed on rotting wood and are usually found in dead trees.