Description

A beautiful Hexarthrius mandibularis Beetle Specimen, spread as shown, 90mm+ or 95mm+.

You will receive the specimen shown, or one like it.

Hexarthrius mandibularis, also known as the Mandibular Stag Beetle, is one of the largest and most spectacular stag beetles in the world. Native to Sumatra, Indonesia, this beetle is famous for its massive, antler-like mandibles—especially in males—which can be nearly as long as their bodies.

Key Features:

• Size: Males can reach up to 11 cm (4.3 in) in length, including mandibles. Females are smaller and lack the huge jaws.
• Mandibles: The jaws are used for fighting other males during mating contests. Despite their intimidating look, they’re not harmful to humans.
• Coloration: Shiny black body with reddish-brown or bronze highlights on the elytra (wing covers).
• Life Cycle: The larvae live in decaying wood for up to 2 years, feeding and growing before pupating into adults. Adult lifespan is relatively short—just a few months.
• Hexarthrius mandibularis Beetle Specimen

Behavior & Habitat:

• Habitat: Tropical forests with plenty of decaying wood.
• Activity: Nocturnal; adults are attracted to tree sap and rotting fruit.
• Conservation: While not officially listed as endangered, their habitat is under pressure from deforestation and illegal collection for the insect trade.

Fun Fact:

Hexarthrius mandibularis is highly prized by insect collectors due to its imposing size and striking appearance, making it a highlight of many beetle collections worldwide.

This beetle is a living reminder of the extraordinary biodiversity found in Indonesia’s rainforests.

Beetle, Agestrata dehaan, Scarab Beetle specimen