﻿456 
  Dr, 
  T. 
  A. 
  Chapman's 
  Contributions 
  to 
  

  

  primary 
  hairs 
  that 
  are 
  so 
  strong 
  in 
  L. 
  euphemus 
  compared 
  

   with 
  the 
  other 
  species, 
  obviously 
  might 
  interfere 
  with 
  the 
  

   ant 
  getting 
  a 
  proper 
  hold 
  of 
  the 
  larva 
  by 
  the 
  1st 
  abdominal 
  

   segment, 
  which 
  seems 
  to 
  be 
  the 
  correct 
  position 
  at 
  which 
  

   to 
  grasp 
  it, 
  were 
  they 
  equally 
  strong 
  here 
  as 
  elsewhere. 
  

   The 
  disappearance 
  of 
  the 
  dorsal 
  hair 
  gets 
  over 
  this 
  difficulty. 
  

  

  The 
  long 
  hairs 
  in 
  L. 
  ewpliemus 
  would 
  be 
  inconvenient 
  if 
  

   the 
  larva 
  hved 
  amongst 
  the 
  brood, 
  as 
  that 
  of 
  L, 
  alcon 
  

   does 
  ; 
  but 
  it 
  always 
  rests 
  on 
  the 
  wall 
  of 
  the 
  nest, 
  its 
  own 
  

   length 
  and 
  often 
  much 
  more 
  away 
  from 
  the 
  brood 
  ; 
  these 
  

   two 
  facts 
  are 
  no 
  doubt 
  therefore 
  correlated, 
  but 
  precisely 
  

   how 
  this 
  is 
  brought 
  about 
  is 
  less 
  evident. 
  

  

  There 
  is 
  ground 
  for 
  much 
  speculation, 
  but, 
  so 
  far 
  as 
  my 
  

   present 
  knowledge 
  goes, 
  for 
  little 
  else, 
  as 
  to 
  how 
  Enghsh 
  

   Myrmica 
  of 
  two 
  (and 
  possibly 
  all) 
  species 
  can 
  satisfactorily 
  

   entertain 
  the 
  larvae 
  of 
  L. 
  alcon 
  and 
  of 
  L. 
  euphenms. 
  

  

  There 
  is 
  sufficient 
  room 
  for 
  astonishment 
  that 
  these 
  

   Myrmica 
  {M. 
  scabrinodis 
  and 
  M. 
  laevinodis), 
  natives 
  of 
  

   Reigate, 
  are 
  excellent 
  hosts 
  for 
  L. 
  arion, 
  which 
  their 
  

   ancestors 
  can 
  only 
  have 
  known 
  a 
  considerable 
  number 
  of 
  

   generations 
  back, 
  and 
  any 
  crossing 
  with 
  species 
  of 
  Myrmica 
  

   familiar 
  with 
  L. 
  arion 
  must 
  have 
  been 
  exceptional 
  and 
  very 
  

   indirect. 
  Still, 
  one 
  may 
  explain 
  in 
  that 
  way 
  that 
  L. 
  arion 
  

   is 
  not 
  altogether 
  strange 
  to 
  them. 
  But 
  when 
  we 
  come 
  to 
  

   L. 
  alcon 
  and 
  L. 
  euphemus, 
  we 
  are 
  dealing 
  with 
  species 
  

   that 
  Reigate 
  ants 
  cannot 
  have 
  Imown 
  during 
  some 
  un- 
  

   counted 
  generations. 
  It 
  is 
  to 
  be 
  observed 
  that 
  we 
  cannot 
  

   say 
  they 
  know 
  all 
  about 
  L. 
  arion 
  and 
  the 
  same 
  instinct 
  

   serves 
  them 
  with 
  these 
  other 
  species. 
  The 
  habits 
  of 
  the 
  

   three 
  species 
  of 
  Lycaena 
  in 
  the 
  ants' 
  nests 
  differ 
  distinctly 
  

   in 
  each 
  species, 
  and 
  their 
  treatment 
  by 
  their 
  hosts 
  equally 
  

   differ 
  in 
  each 
  case. 
  The 
  attitudes 
  of 
  M. 
  scabrinodis 
  and 
  of 
  

   M. 
  laevinodis 
  are 
  identical 
  with 
  each 
  Lycaena. 
  Each 
  treats 
  

   L. 
  arion 
  with 
  a 
  certain 
  amount 
  of 
  care, 
  but 
  has 
  an 
  extreme 
  

   solicitude 
  in 
  the 
  case 
  of 
  L. 
  alcon, 
  whilst 
  as 
  to 
  L. 
  euphemus, 
  

   they 
  may 
  be 
  said, 
  comparatively, 
  to 
  pay 
  no 
  attention 
  to 
  

   them. 
  

  

  One 
  definite 
  conclusion 
  seems 
  forced 
  upon 
  us, 
  and 
  that 
  

   is, 
  that 
  the 
  relations 
  between 
  Myrmica 
  and 
  Lycaena 
  

   originated 
  with 
  the 
  ancestors 
  of 
  the 
  two 
  genera, 
  when 
  

   possibly 
  each 
  was 
  represented 
  by 
  a 
  single 
  species 
  ; 
  that 
  

   as 
  Myrmica 
  developed 
  into 
  a 
  number 
  of 
  species, 
  Lycaena 
  

   maintained 
  relations 
  with 
  all 
  ( 
  ? 
  or 
  most) 
  of 
  them 
  ; 
  that 
  

   as 
  Lycaena 
  subdivided 
  into 
  separate 
  species, 
  each 
  form 
  

  

  