﻿70 
  

  

  W. 
  F. 
  FISKE. 
  

  

  ong 
  before. 
  The 
  records 
  made 
  on 
  the 
  island 
  of 
  Kimmi 
  in 
  January 
  1914 
  are 
  an 
  

   example. 
  As 
  presented 
  in 
  tabular 
  form 
  (Table 
  XV) 
  they 
  are 
  not 
  particularly 
  

  

  Table 
  XV. 
  

  

  Catch 
  of 
  Fly 
  on 
  Island 
  of 
  Kimmi 
  showing 
  effect 
  of 
  variable 
  character 
  of 
  Shelter 
  

   on 
  Density, 
  Sex 
  Ratio 
  and 
  Movements 
  of 
  Glossina 
  palpalis. 
  

  

  Date. 
  

  

  Locality 
  on 
  Island. 
  

   (Observation 
  Point.) 
  

  

  Catch 
  of 
  Fly. 
  

  

  f 
  January 
  

   1914) 
  

  

  Male 
  

   Density. 
  

  

  Female 
  

   Ratio. 
  

  

  Total 
  in 
  

   Catch. 
  

  

  27th 
  

   29th 
  

   29th 
  

   24th 
  

   27th 
  

  

  South-easternmost 
  point 
  . 
  

   North-eastern 
  point 
  

   North-western 
  point 
  

   South-western 
  point 
  

   Southern 
  shore 
  

  

  39-5 
  

   15'7* 
  

   433 
  

   233* 
  

  

  42-7 
  

  

  53-2 
  

   66-9 
  

   52-2 
  

   62 
  9 
  

   53-0 
  

  

  506 
  

   14z 
  

  

  272 
  

   384 
  

   276 
  

  

  * 
  Shelter 
  was 
  appreciably 
  less 
  attractive 
  at 
  these 
  two 
  points. 
  

  

  striking, 
  but 
  the 
  correlation 
  between 
  shelter, 
  local 
  density 
  of 
  males, 
  and 
  female 
  

   percentage 
  is 
  quite 
  strikingly 
  shown 
  in 
  figure 
  2. 
  In 
  this 
  case 
  the 
  " 
  shore 
  line 
  " 
  

   in 
  the 
  graph 
  represents 
  the 
  entire 
  circumference 
  of 
  the 
  island, 
  a 
  distance 
  of 
  between 
  

   2 
  and 
  3 
  miles, 
  with 
  five 
  observation 
  points 
  located 
  as 
  stated. 
  The 
  difference 
  in 
  

   character 
  of 
  shelter 
  was 
  not 
  particularly 
  notable, 
  but 
  it 
  was 
  enough 
  to 
  produce 
  

   the 
  effect 
  shown. 
  

  

  Observation 
  

  

  South 
  - 
  

  

  North- 
  North- 
  South- 
  

  

  Southern 
  

  

  Point 
  

  

  eastern 
  

  

  eastern 
  western 
  western 
  

  

  Percentage 
  

  

  

  * 
  

  

  66-9 
  

  

  s 
  

  

  * 
  

  

  

  62-4 
  

  

  ■X 
  

  

  

  

  of 
  Females 
  

  

  532 
  

  

  s 
  

  

  

  52-2 
  1 
  

  

  s 
  

   s 
  

  

  

  > 
  

  

  h53-0 
  

  

  Density 
  of 
  

  

  Males 
  

  

  39-5 
  

  

  

  \* 
  

  

  43 
  3y 
  

  

  / 
  

  

  • 
  

  

  233 
  

  

  

  

  42-7 
  

  

  

  

  

  15-7 
  

  

  

  

  

  

  

  Shore 
  Line 
  

  

  

  

  

  Between 
  two 
  

  

  and 
  three 
  ni/ft 
  

  

  _j 
  

  

  

  

  ^ 
  

  

  

  

  

  

  

  Shelter 
  

  

  Superior 
  

  

  Inferior 
  Superior 
  Inferior 
  

  

  Superior 
  

  

  Fig. 
  2. 
  Graphic 
  representation 
  of 
  da^a 
  given 
  in 
  Table 
  XV. 
  

  

  