Lucanus mazama

This species is valued for its medium size and classic stag beetle form. Larvae develop in decaying hardwood, where they feed and grow for one to two years before pupation. Adults are dark reddish-brown to nearly black, with males bearing moderately elongated mandibles used in ritualized pushing contests, while females are smaller and more robust with shorter, functional jaws. Adults are primarily nocturnal and secretive, often encountered near sap flows or forest debris, making this species a subtle but appealing stag beetle for collectors and keepers.