title: Trephionus cylindriphallus
text: # Trephionus cylindriphallus
  
  Trephionus cylindriphallus, is a species of beetle belonging to the family Carabidae. It is endemic to Japan.
  
  ## Etymology
  
  The specific name cylindriphallus is due to cylindrical shape of the endophallus.
  
  ## Description
  
  Body length of male is about 8.9–9.8 mm, whereas female is 8.2–10.0 mm. Dorsal surface blackish brown to black. Endophallus cylindrical in shape. No hind wings. Dorso-apical lobe semi-ellipsoid. Apex of aedeagus rounded.
  
  