﻿88 
  Mr. 
  C. 
  B. 
  Williams 
  on 
  Migration 
  of 
  Yelloiv 
  Butterflies. 
  

  

  (6) 
  Mr. 
  Roebottom 
  reports 
  that 
  at 
  Cedros 
  (south-western 
  

   promontory) 
  in 
  1916 
  yellow 
  butterflies 
  were 
  flying 
  towards 
  

   the 
  east 
  for 
  about 
  four 
  days 
  in 
  large 
  numbers. 
  He 
  is 
  not 
  

   sure 
  of 
  the 
  month, 
  but 
  thinks 
  that 
  it 
  was 
  towards 
  the 
  

   end 
  of 
  the 
  dry 
  season 
  (April 
  or 
  May) 
  as 
  the 
  local 
  explanation 
  

   of 
  the 
  flight 
  was 
  that 
  the 
  butterflies 
  were 
  looking 
  for 
  water. 
  

  

  Note. 
  — 
  Since 
  the 
  above 
  was 
  written 
  Mr. 
  W. 
  Potter 
  tells 
  

   me 
  that 
  he 
  has 
  seen 
  Catopsilia 
  statira 
  ovipositing 
  on 
  the 
  

   leaves 
  of 
  " 
  Bois 
  Mulatre 
  " 
  {Pentaclethra 
  filamentosa), 
  which 
  

   is 
  a 
  common 
  leguminous 
  forest 
  tree 
  in 
  Trinidad. 
  

  

  