Description
Meet the Subterranean Gladiator: Cyclommatus gestroi, a rare and highly sought-after stag beetle from the family Lucanidae.
You will receive the exact specimen you choose.
Welcome to nature’s armored coliseum, starring Cyclommatus gestroi, a spectacular metallic stag beetle native to the dense, humid rainforests of Papua, Indonesia. Even as a dried specimen, this insect looks less like a biological organism and more like a miniature, brass-plated steampunk robot. It serves as a textbook example of extreme evolutionary engineering.
The first thing that strikes you about a dried male specimen is its jaw-dropping allometric growth. The beetle’s mandibles—massive, serrated, and curved like sabers—can grow longer than its entire body! In the wild canopy, these aren’t for eating; they are specialized wrestling tools used to lift and hurl rival males off branches in battles over territory and mates.
While jewel beetles achieve their gloss through thin-film layers, Cyclommatus gestroi features a deeply polished, rich bronze-to-coppery metallic exoskeleton that gleams brilliantly under display lighting. Because its body structural integrity is incredibly durable, a properly preserved dried specimen retains its striking, weaponized architecture and polished sheen indefinitely, making it a dramatic centerpiece for entomology collections.
While some of its cousin species (like Cyclommatus metallifer) are common in the insect breeding hobby, C. gestroi is incredibly scarce. It is native to highly remote, restricted localities like the Fly River basin and Timika region of New Guinea. Because it is so difficult to locate in the wild, citizens rarely log observations, and unmounted specimens regularly fetch premium collector prices on global entomology markets.
