europe& x27;s largest beetle lucanus cervus. big beetle on old tree. stag beetle from western europe

animal antenna arthropod beautiful beetle big black brown bug cervus closeup coleoptera endangered entomological entomology environment europe european europes forest giant horn horned insect insecta intraspecific invertebrate large largest lucanidae lucanus lumber macro majestic male mandibles nature old organism portrait red sitting stag stagbeetle struggle timber tree western wild wildlife wood woodland