title: Trigonopterus arjunensis
text: # Trigonopterus arjunensis
  
  Trigonopterus arjunensis is a species of flightless weevil in the genus Trigonopterus from Indonesia.
  
  ## Etymology
  
  The species' name is derived from that of the type locality, Mount Arjuno.
  
  ## Description
  
  Individuals measure around 3.09–3.34 mm long. General coloration is black with rust-colored legs and antennae, except for the tarsi, which are also black. The species exhibits sexual dimorphism, with females being slenderer than males.
  
  ## Range
  
  The species is found around elevations of 1,388–1,432 metres (4,554–4,698 ft) on the slopes of Mount Arjuno and Mount Wilis in the Indonesian province of East Java.
  
  ## Phylogeny
  
  T. arjunensis is in the T. dimorphus species group.
  
  