4^^ 
is  required,  and  the  smaller  Ir rigation  Canals,  when  not  kept  clean, 
were  found  to  be  a  fruitful  source  of  Anophelines. 
I  may  summarise,  then,  the  principal  breeding  places  in  the 
Island  ;  — 
1.  Swamps  and  pools  in  connection  with  rivers. 
2.  Shallow  ditches  and  gutters. 
3.  Ponds  caused  by  surface  drainage. 
4.  Accidental  and  temporary  pools. 
5.  Wells  occasionally. 
6.  Drainage  trenches- 
7.  Irrigation  canals. 
It  was  impossible  for  me  in  the  limited  time  at  my  disposal  to 
make  anything  like  a  complete  survey  of  the  various  breeding  places 
of  Anophelines  in  different  localities,  but  this  has  been  done  to  some 
extent  by  Dr.  Grabham,  whose  brilliant  work  on  the  mosquitoes  in 
Jamaica  is  so  well  known,  but  it  is  very  important  that  a  general 
survey  of  the  Island  should  be  made,  and  the  various  breeding  places 
mapped  out.  For  this  and  other  purposes  every  Tropical  Govern¬ 
ment  should  possess  an  Entomologist. 
I  also  found  it  impossible  to  attempt  anything  like  a  collection  of 
mosquitoes  ;  but  the  following  remarks,  kindly  supplied  for  this  paper 
by  Mr.  Newstead,  Lecturer  on  Entomology  to  the  School  of  Tropical 
Medicine,  include  a  list  of  the  principal  species  of  Anophelines  and 
other  disease-bearing  mosquitoes  :  — 
‘  In  January,  1905,  the  total  known  species  of  Jamaican  mosquitoes 
'  was  twenty-five.  Theobald*'  gives  descriptions  of  all  these  together 
'  with  synoptic  tables  of  the  sub-families,  genera,  and  species  ;  and 
‘  valuable  data,  contributed  by  Dr.  Grabham,  on  the  life-history  and 
‘  breeding  places  of  these  insects.  Since  the  publication  of  this  useful 
‘  memoir  seventeen  additional  species  have  been  added  to  the  list 
‘  by  Dr.  Grabham,  so  that  the  total  number  of  species  now  recorded 
‘  for  Jamaica  is  forty-two.  Little  attention  was  given  to  the  Culicidae 
'  of  the  Island  by  the  writer,  as  it  was  found  altogether  unnecessary  to 
‘  do  so  owing  to  the  extensive  investigations  which  Dr.  Grabham  has 
‘  so  ably  conducted  during  the  last  ten  years  or  so.  This  authority 
‘  is  now  in  possession  of  valuable  data  concerning  the  bionomics  of 
*  The  Mosquitoes  of  Jamaica.  Inst.,  Jamaica,  Date  Tree  Hall,  1006,  p]r,  1-40, 
