stag beetle lucanus cervus on white. top and bottom

aggressive animal antler arthropod arthropoda beetle biology black blue bottom bug cervus clambering coleoptera creature creep creepy dark elytra emerald endangered entomology exoskeleton fauna feeler foot forest grotesque hart horn imago insect isolated large leg lucanid lucanidae lucanus lying nature protected rare saproxylic scarab stag stagbeetle underneath wild wildlife zoology