title: Trigonopterus asper
text: # Trigonopterus asper
  
  Trigonopterus asper is a species of flightless weevil in the genus Trigonopterus from Indonesia.
  
  ## Etymology
  
  The specific name is derived from Latin asper, meaning "coarse" or "rough". This refers to the uneven texture of its integument.
  
  ## Description
  
  Individuals measure 2.48–2.60 mm in length. General coloration is black with rust-colored legs and head.
  
  ## Range
  
  The species is found around elevations of 1,983–2,185 metres (6,506–7,169 ft) on Mount Bukittinggul in the Indonesian province of West Java.
  
  ## Phylogeny
  
  T. asper is in the T. dimorphus species group, and is closely related to T. variolosus. It can be distinguished from the latter by its larger penis.
  
  