﻿Bull. 
  Ent 
  Research. 
  Vol 
  XIII 
  Part 
  4. 
  

  

  Plate 
  XX. 
  

  

  Fig. 
  I. 
  Heavy 
  evergreen 
  forest 
  suitable 
  for 
  G. 
  pal 
  palis 
  , 
  Nassarawa 
  Province. 
  

  

  

  Fig. 
  2. 
  Pati 
  Hill, 
  Lokoja, 
  showing 
  rather 
  open 
  type 
  of 
  heavy 
  forest. 
  

  

  G. 
  tachinoides 
  , 
  palpalis 
  , 
  and 
  long[p_a|pjs 
  present. 
  Fly- 
  boys" 
  

  

  catching 
  tsetse 
  under 
  opened 
  black 
  umbrellas. 
  

  

  