﻿XX 
  

  

  example 
  of 
  C. 
  1 
  -'punctata 
  recorded 
  from 
  Finland 
  in 
  1843 
  

   as 
  being 
  taken 
  with 
  F. 
  rnfa, 
  by 
  Mannerlieim, 
  was 
  really 
  

   C. 
  clistincfa. 
  

  

  In 
  1895 
  I 
  recorded 
  it 
  with 
  Formica 
  rufa, 
  and 
  pointed 
  out 
  

   it 
  was 
  a 
  myrmecophilous 
  species. 
  

  

  As 
  a 
  matter 
  of 
  fact, 
  it 
  is 
  only 
  to 
  be 
  found 
  in 
  the 
  immediate 
  

   neighbourhood 
  of 
  ants' 
  nests, 
  and 
  in 
  this 
  country 
  with 
  

   Formica 
  rufa. 
  My 
  problem, 
  which 
  I 
  have 
  been 
  working 
  at 
  

   for 
  over 
  twenty 
  years 
  now, 
  is 
  to 
  try 
  and 
  account 
  for 
  its 
  

   association 
  with 
  ants. 
  

  

  I 
  have 
  taken 
  it, 
  in 
  every 
  month 
  in 
  the 
  year, 
  on 
  and 
  about 
  

   the 
  nests 
  of 
  F. 
  rufa. 
  In 
  1900 
  I 
  proved 
  by 
  experiment 
  that 
  

   this 
  species 
  was 
  more 
  protected 
  against 
  the 
  attacks 
  of 
  its 
  

   host 
  than 
  is 
  the 
  nearly 
  related 
  C. 
  7-punctata, 
  and 
  that 
  the 
  

   ants 
  were 
  far 
  less 
  aggressive 
  to 
  it 
  than 
  they 
  were 
  to 
  the 
  latter. 
  

   This 
  point 
  I 
  was 
  able 
  to 
  demonstrate 
  to 
  Mr. 
  Blair 
  in 
  the 
  field 
  

   last 
  year, 
  when 
  he 
  was 
  with 
  me 
  at 
  Wey 
  bridge. 
  

  

  I 
  may 
  here 
  mention 
  that 
  Dr. 
  Sharp 
  has 
  kindly 
  dissected 
  

   the 
  J 
  genitalia 
  of 
  C. 
  distincta 
  and 
  C. 
  7-punctata 
  for 
  me 
  (which 
  

   I 
  exhibit), 
  and 
  he 
  found 
  they 
  differ 
  greatly; 
  those 
  of 
  C. 
  

   distincta 
  being 
  very 
  highly 
  specialised. 
  

  

  In 
  1900 
  I 
  suggested 
  that 
  the 
  larvae 
  of 
  the 
  beetle 
  fed 
  upon 
  

   the 
  Aphidae 
  and 
  Coccidae 
  dwelling 
  with 
  the 
  ants. 
  This 
  

   point 
  was 
  seized 
  on 
  by 
  Wasmann 
  in 
  a 
  paper 
  published 
  in 
  

   1912 
  (the 
  first 
  and 
  only 
  real 
  record 
  of 
  the 
  Lady-bird 
  with 
  

   ants 
  on 
  the 
  Continent). 
  He 
  writes 
  : 
  " 
  The 
  larvae 
  of 
  this 
  

   Coccinella 
  lives 
  from 
  analogy 
  with 
  the 
  other 
  Coccinellid 
  larvae 
  

   without 
  doubt, 
  as 
  Donisthorpe 
  already 
  in 
  1900 
  has 
  remarked 
  

   on 
  the 
  Aphidae 
  and 
  Coccidae 
  dwelling 
  with 
  ants." 
  He 
  then 
  

   goes 
  on 
  to 
  say 
  that 
  the 
  ant 
  species 
  with 
  which 
  it 
  occurs 
  do 
  

   not 
  keep 
  any 
  Aphidae 
  or 
  Coccidae 
  in 
  their 
  nests, 
  and 
  that 
  

   this 
  is 
  a 
  Darwinian 
  paradox. 
  In 
  this 
  he 
  is 
  not 
  quite 
  correct, 
  

   as 
  F. 
  rufa 
  does 
  keep 
  a 
  few 
  species 
  of 
  both 
  in 
  the 
  nests 
  ; 
  but 
  

   not, 
  of 
  course, 
  in 
  anything 
  like 
  sufficient 
  numbers 
  to 
  serve 
  

   as 
  food 
  for 
  the 
  Lady-bird's 
  larvae. 
  However, 
  on 
  July 
  3rd, 
  

   1918, 
  I 
  found 
  a 
  large 
  number 
  of 
  the 
  larvae 
  feeding 
  on 
  Aphids, 
  

   attended 
  by 
  the 
  ants, 
  on 
  fir-trees 
  over 
  rufa 
  nests. 
  I 
  brought 
  

   a 
  number 
  home, 
  with 
  fir-boughs 
  covered 
  with 
  Aphids, 
  and 
  

   introduced 
  them 
  into 
  my 
  large 
  rufa 
  observation 
  nest. 
  They 
  

  

  