﻿U. 
  S. 
  NATIONAL 
  MUSEUM 
  

  

  PROCEEDINGS, 
  VOL. 
  XX 
  PL. 
  XVII 
  

  

  ^y 
  

  

  Male 
  abdominal 
  Appendages 
  of 
  Melanoplus. 
  

  

  FOH 
  EXPLANATION 
  OF 
  PLATE 
  SEE 
  PAGE 
  410. 
  

  

  