Is a massive representative of the Cerambycidae family, characterized by its impressive size, with adult specimens measuring between 50 and 90 millimeters in length. The body is robust, elongated, and noticeably flattened dorsoventrally, displaying a coloration that ranges from deep dark brown to dull black. The head is large, featuring highly developed mandibles that exhibit strong sexual dimorphism; those of males are much larger, curved, and powerful. The pronotum is broad, rectangular, and adorned with distinct lateral spines, while the prosternum of males is densely covered with a yellowish-brown pubescence resembling a "beard," a diagnostic feature that inspires its specific name. The antennae are thick and filiform, extending to about half the body length in females and exceeding this proportion in males.

Geographical distribution: Occurs widely across the Neotropical realm. Its distribution range extends from southern Mexico through Central America—including nations such as Costa Rica and Panama—and deep into South America, where it is widely recorded in Colombia, Venezuela, Ecuador, Peru, Bolivia, Paraguay, northern Argentina, and extensively throughout Brazil, from the Amazon basin to the southern temperate forests.

Habitat: Throws its ecological presence mainly within primary and secondary tropical wet forests, including the Amazon Rainforest, the Atlantic Forest, and gallery forests. It prefers mature woodland habitats with an abundance of old, dying, or fallen hardwood trees. However, it displays a degree of ecological plasticity, occasionally colonizing anthropogenically altered environments such as Eucalyptus plantations and agricultural orchards where decaying wooden logs are left undisturbed.

Feeding: Exhibits a dietary specialization that shifts dramatically throughout its life cycle. In the larval stage, it is strictly xylophagous, feeding on the dense interior wood of decaying or dead trunks, particularly favoring tree species from the Fabaceae and Moraceae families. Conversely, the adults possess functional mouthparts but feed very sparingly; they occasionally consume exuded tree sap or fermenting fruit juices, relying almost entirely on the substantial lipid reserves accumulated during their multi-year larval development.

Behavior: Manifests nocturnal and crepuscular habits, spending daylight hours concealed under loose bark, inside tree cavities, or deep within fallen logs. Adults are heavy, loud fliers that are highly attracted to artificial light sources during warm, humid nights. Males are highly territorial and defensive, utilizing their formidable mandibles to engage in fierce physical combats against rival males for mating rights, as well as for self-defense against potential predators.

Reproduction: Commences after nocturnal mating, when the gravid female searches for suitable woody hosts for oviposition. Utilizing her specialized ovipositor, she deposits clusters of small, whitish eggs deep within the bark fissures of dying or dead hardwood trees. Once hatched, the larvae immediately bore into the wood, excavating complex and extensive tunnel networks where they will feed and grow for two to three years before constructing a pupal chamber near the surface to undergo metamorphosis.

Conservation status: Has not been globally evaluated by the IUCN Red List. Nevertheless, on a regional scale, populations of this giant beetle face indirect ecological threats due to habitat fragmentation, intensive logging of primary forests, and the systematic removal of decaying coarse woody debris, which drastically reduces the essential microhabitats required for their larval development and long-term survival.