title: Trephionus niumontanus
text: # Trephionus niumontanus
  
  Trephionus niumontanus, is a species of beetle belonging to the family Carabidae. It is endemic to Japan.
  
  ## Etymology
  
  The specific name niumontanus is from Niu Mountains, where the type specimen was found.
  
  ## Description
  
  Body length of male is about 10.6 mm, whereas female is 10.9 mm. Dorsal surface black. Endophallus slender. No hind wings. Dorso-apical lobe narrowly swollen. Apex of aedeagus rounded.
  
  