﻿214 
  PROCEEDINGS 
  OF 
  THE 
  FOURTH 
  ENTOMOLOGICAL 
  MEETING 
  

  

  Dr. 
  Gravely. 
  

  

  Major 
  Christo- 
  

   phers. 
  

  

  Mr. 
  White. 
  

   Mr. 
  Ballard. 
  

  

  Major 
  Christo- 
  

   phers. 
  

  

  Mr. 
  Sen. 
  

  

  Mr. 
  Ghosh. 
  

  

  Mr. 
  Iyengar. 
  

  

  resting 
  place 
  for 
  carts 
  ; 
  it 
  is 
  noticeable 
  that 
  at 
  the 
  latter 
  existence 
  on 
  

   the 
  verandah 
  in 
  the 
  evening 
  is 
  tolerable, 
  whereas 
  in 
  the 
  other 
  it 
  is 
  

   quite 
  impossible. 
  

  

  I 
  have 
  heard 
  of 
  cattle 
  being 
  used 
  for 
  keeping 
  malaria 
  down 
  in 
  France. 
  

  

  A 
  certain 
  amount 
  of 
  association 
  of 
  species 
  of 
  mosquitos 
  with 
  parti- 
  

   cular 
  mammals 
  undoubtedly 
  exists. 
  Anopheles 
  fuliginosus 
  and 
  A. 
  

   rossii, 
  for 
  example, 
  are 
  mainly 
  cattle 
  feeders. 
  A. 
  funestus 
  and 
  A. 
  

   listoni 
  like 
  horses 
  but 
  are 
  much 
  more 
  attached 
  to 
  man. 
  Some 
  Culicidse 
  

   do 
  not 
  feed 
  on 
  mammals 
  at 
  all 
  ; 
  certainly 
  not 
  on 
  man. 
  

  

  Uranotcenia 
  is 
  a 
  genus 
  of 
  mosquitos 
  said 
  never 
  to 
  bite 
  ; 
  but 
  U. 
  jyycjmfea 
  

   is 
  recorded 
  as 
  containing 
  avian 
  blood 
  in 
  Australia. 
  

  

  On 
  two 
  occasions 
  I 
  have 
  seen 
  Stegomyia 
  albopicta 
  prefer 
  to 
  suck 
  a 
  

   plain 
  cake 
  rather 
  than 
  the 
  people 
  at 
  a 
  tea 
  table. 
  The 
  specimens 
  were 
  

   females. 
  

  

  Yet 
  Stegomyia 
  also 
  very 
  frequently 
  goes 
  to 
  the 
  tea 
  pot 
  on 
  account 
  

   of 
  its 
  warmth. 
  

  

  In 
  one 
  of 
  his 
  articles 
  in 
  the 
  Indian 
  Journal 
  of 
  Medical 
  Research 
  (" 
  The 
  

   natural 
  host 
  of 
  Phlehotomus 
  ") 
  Mr. 
  Hewlett 
  showed 
  the 
  Gecko 
  to 
  be 
  the 
  

   natural 
  host 
  of 
  Phlehotomus, 
  and 
  he 
  considered 
  the 
  existence 
  of 
  the 
  one 
  

   might 
  possibly 
  be 
  correlated 
  with 
  that 
  of 
  the 
  other. 
  

  

  Certain 
  species 
  of 
  crop 
  pests 
  occur 
  in 
  one 
  place 
  and 
  not 
  in 
  another 
  

   though 
  the 
  food 
  plant 
  is 
  present 
  in 
  both. 
  For 
  instance 
  the 
  mango 
  

   weevil, 
  Cryptorrhynchus 
  gravis, 
  occurs 
  in 
  Eastern 
  Bengal 
  and 
  not 
  in 
  

   Western, 
  though 
  the 
  trees 
  occur 
  in 
  both 
  Bengals 
  and 
  mangoes 
  are 
  im- 
  

   ported 
  from 
  East 
  to 
  West 
  Bengal. 
  Similarly 
  I 
  have 
  noticed 
  sugarcane 
  

   borers 
  occur 
  in 
  East 
  Bengal 
  and 
  not 
  in 
  West 
  although 
  sugarcane 
  is 
  

   grown 
  there 
  also. 
  The 
  distribution 
  of 
  a 
  species 
  depends 
  not 
  on 
  the 
  

   presence 
  of 
  food 
  only 
  but 
  also 
  on 
  a 
  suitable 
  climatic 
  condition. 
  

  

  As 
  most 
  mosquitos 
  show 
  no 
  special 
  predilection 
  towards 
  particular 
  

   mammals, 
  there 
  appears 
  to 
  be 
  no 
  noticeable 
  correlation. 
  But 
  climatic 
  

   conditions 
  and 
  occurrence 
  of 
  different 
  kinds 
  of 
  breeding 
  places 
  appear 
  

   to 
  determine 
  the 
  distribution 
  of 
  the 
  species. 
  That 
  random 
  distribution 
  

   of 
  species 
  occurs 
  in 
  various 
  ways 
  is 
  true, 
  but 
  the 
  places, 
  to 
  which 
  the 
  

   species 
  are 
  distributed, 
  should 
  have 
  the 
  particular 
  breeding 
  places 
  suitable 
  

   to 
  them, 
  as 
  otherwise, 
  the 
  species 
  is 
  not 
  likely 
  to 
  establish 
  itself 
  in 
  the 
  

   new 
  locality. 
  

  

  The 
  occurrence 
  of 
  some 
  genera 
  of 
  Alpine 
  plants 
  in 
  the 
  Himalayas 
  

   and 
  in 
  the 
  Nilgiri 
  Hills 
  supports 
  the 
  theory 
  of 
  distribution 
  during 
  the 
  

   glacial 
  era. 
  It 
  is 
  not 
  likely 
  that 
  the 
  seeds 
  of 
  these 
  plants 
  could 
  be 
  carried 
  

   by 
  the 
  wind. 
  The 
  occurrence 
  of 
  Anopheles 
  gigas 
  in 
  the 
  Nilgiris 
  and 
  in 
  

   the 
  Himalayas 
  may 
  be 
  a 
  further 
  illustration 
  of 
  a 
  glacial 
  era 
  distribu- 
  

   tion. 
  

  

  