﻿26 
  JAS. 
  J. 
  SIMPSON 
  — 
  ENTOMOLOGICAL 
  

  

  following 
  have 
  been 
  found 
  in 
  and 
  around 
  Sunyani 
  : 
  — 
  Glossina 
  palpalis, 
  G. 
  caliginea, 
  

   G. 
  pallicera, 
  G. 
  nigrofusca, 
  G. 
  fusca, 
  Rhinomyza 
  slimulans, 
  Stomoxys 
  brunnipes, 
  

   Tabanus 
  kingsleyi, 
  T. 
  ruficrus, 
  T. 
  ianthinus, 
  T. 
  albipalpus, 
  Hippocentrum 
  

   trimaculatum, 
  H. 
  versicolor, 
  Haematopota 
  sp. 
  near 
  cordigera, 
  Stegomyia 
  fasciata, 
  

   Culiciomyia 
  nebulosa, 
  Culex 
  tigripes 
  var. 
  fuscus, 
  Ochlerotatus 
  cumminsi, 
  Eretmopodites 
  

   chrysogaster 
  and 
  Anopheles 
  costalis. 
  This 
  list 
  may 
  be 
  taken 
  as 
  indicative 
  of 
  the 
  

   insect 
  fauna 
  of 
  this 
  region, 
  while 
  the 
  detailed 
  records 
  of 
  the 
  various 
  species 
  of 
  

   Glossina 
  are 
  shown 
  on 
  the 
  map. 
  The 
  forest 
  is 
  very 
  dense 
  and 
  almost 
  impenetrable 
  

   all 
  over 
  this 
  district. 
  

  

  Between 
  Sunyani 
  and 
  N'Kwanta 
  G. 
  palpalis 
  and 
  G. 
  fusca 
  were 
  caught 
  on 
  the 
  

   road, 
  and 
  at 
  Nsuta 
  G. 
  palpalis 
  and 
  T. 
  besti 
  var. 
  arbucMei 
  were 
  obtained. 
  At 
  the 
  

   rest-house 
  at 
  the 
  last-named 
  place 
  a 
  species 
  of 
  Simulium 
  not 
  yet 
  identified 
  was 
  

   extremely 
  troublesome. 
  

  

  Shortly 
  after 
  leaving 
  Nsuta 
  the 
  monsoon 
  forest 
  was 
  entered, 
  but 
  this 
  did 
  not 
  

   seem 
  to 
  affect 
  the 
  character 
  of 
  the 
  blood-sucking 
  insect 
  fauna. 
  Between 
  Nsuta 
  and 
  

   Fufu 
  the 
  following 
  were 
  caught 
  : 
  — 
  G. 
  palpalis, 
  G. 
  fusca, 
  Tabanus 
  ruficrus, 
  

   T. 
  kingsleyi, 
  T. 
  fasciatus, 
  T. 
  besti, 
  and 
  T. 
  besti 
  var. 
  arbucMei. 
  The 
  only 
  blood- 
  

   sucking 
  insect 
  seen 
  between 
  Fufu 
  and 
  Coomassie 
  was 
  T. 
  kingsleyi. 
  

  

  (9.) 
  Coomassie 
  to 
  Sekondi 
  (by 
  Railway). 
  

  

  This 
  railroad 
  runs 
  from 
  Sekondi 
  to 
  Coomassie, 
  a 
  distance 
  of 
  168 
  miles. 
  It 
  

   enters 
  Ashanti 
  at 
  Dunkwa, 
  where 
  it 
  crosses 
  the 
  River 
  Ofin 
  ; 
  attains 
  its 
  maximum 
  

   elevation 
  near 
  Akrokerri, 
  134| 
  miles 
  from 
  Sekondi 
  ; 
  and 
  then 
  descends 
  gradually 
  to 
  

   Coomassie, 
  which 
  is 
  858 
  feet 
  above 
  sea-level. 
  South 
  of 
  Dunkwa, 
  that 
  is, 
  in 
  the 
  

   Colony 
  proper, 
  the 
  railway 
  runs 
  through 
  the 
  region 
  drained 
  by 
  the 
  Ankrobra 
  

   River. 
  

  

  The 
  only 
  town 
  on 
  the 
  railway 
  visited 
  and 
  examined 
  by 
  me 
  was 
  Obuasi. 
  This 
  

   town, 
  the 
  capital 
  of 
  Southern 
  Ashanti, 
  has 
  an 
  elevation 
  of 
  750 
  feet 
  above 
  sea-level, 
  

   and 
  is 
  situated 
  where 
  the 
  railway 
  passes 
  through 
  a 
  narrow 
  gap 
  in 
  the 
  hills 
  which 
  

   form 
  the 
  watershed 
  between 
  the 
  basins 
  of 
  the 
  River 
  Ofin, 
  and 
  the 
  River 
  Prah. 
  The 
  

   small 
  streams 
  to 
  the 
  north-west 
  of 
  the 
  town 
  drain 
  into 
  the 
  River 
  Ofin, 
  while 
  those 
  

   to 
  the 
  south-west 
  are 
  tributaries 
  of 
  the 
  River 
  Prah. 
  Obuasi 
  is 
  a 
  very 
  important 
  

   gold-mining 
  centre. 
  No 
  tsetse-belt 
  occurs 
  in 
  the 
  immediate 
  vicinity 
  of 
  the 
  town, 
  

   but 
  Glossina 
  palpalis 
  is 
  occasionally 
  seen 
  there, 
  doubtless 
  brought 
  in 
  by 
  the 
  trains, 
  

   and 
  G. 
  tabaniformis 
  has 
  also 
  been 
  caught. 
  This 
  species 
  is 
  extremely 
  rare 
  in 
  all 
  

   parts 
  of 
  British 
  West 
  Africa 
  ; 
  with 
  the 
  exception 
  of 
  a 
  few 
  records 
  in 
  the 
  Gold 
  

   Coast 
  it 
  has 
  been 
  found 
  elsewhere 
  only 
  in 
  Southern 
  Nigeria. 
  

  

  Wood 
  is 
  used 
  both 
  for 
  props 
  and 
  as 
  fuel 
  for 
  the 
  mines, 
  and 
  very 
  extensive 
  felling 
  

   of 
  timber 
  has, 
  therefore, 
  been 
  made. 
  This 
  probably 
  accounts 
  for 
  the 
  absence 
  of 
  

   tsetse 
  in 
  the 
  immediate 
  vicinity, 
  as 
  the 
  area 
  is 
  thus 
  rendered 
  unsuitable 
  for 
  

   breeding 
  or 
  shelter. 
  Beyond 
  this 
  clearing, 
  some 
  three 
  miles 
  from 
  the 
  town, 
  

   G. 
  palpalis 
  is 
  to 
  be 
  found. 
  

  

  According 
  to 
  Dr. 
  W. 
  M. 
  Graham, 
  who 
  carried 
  on 
  prolonged 
  entomological 
  

   investigations 
  in 
  this 
  region, 
  G. 
  palpalis 
  occurs 
  at 
  the 
  following 
  points 
  on 
  the 
  

   railway 
  : 
  — 
  Sekondi, 
  6 
  miles, 
  16J 
  miles, 
  44J 
  miles, 
  81 
  miles, 
  92 
  miles, 
  99J 
  miles, 
  

   101 
  miles, 
  103J 
  miles, 
  115 
  miles, 
  118, 
  119 
  and 
  120 
  miles, 
  124 
  miles, 
  126 
  miles, 
  127 
  

   and 
  128 
  miles, 
  137 
  J 
  miles, 
  148 
  J 
  miles, 
  156 
  miles, 
  Coomassie. 
  Glossina 
  fusca 
  was 
  

  

  