﻿VOL. 
  XIII. 
  Part 
  4. 
  — 
  pp. 
  373-472. 
  

  

  APRIL, 
  1923. 
  

  

  BULLETIN 
  OF 
  

  

  ENTOMOLOGICAL 
  

  

  RESEARCH 
  

  

  1 
  "* 
  S^N 
  

  

  APR 
  »* 
  W* 
  

  

  SO 
  

  

  LONDON. 
  

  

  THE 
  IMPERIAL 
  BUREAU 
  OF 
  ENTOMOLOGY, 
  

   41, 
  QUEEN'S 
  GATE, 
  S.W.7. 
  

  

  Price 
  5s. 
  net. 
  

  

  All 
  Rights 
  Reserved. 
  

  

  