﻿464 
  Dr. 
  T. 
  A. 
  Chapman's 
  Contributions 
  to 
  

  

  has 
  a 
  depressed 
  central 
  dorsal 
  area, 
  with 
  the 
  prothoracic 
  

   plate 
  in 
  the 
  middle. 
  The 
  margin 
  round 
  this 
  area 
  is 
  swollen 
  

   into 
  a 
  roll 
  continuing 
  round 
  the 
  whole 
  front 
  of 
  the 
  larva; 
  

   one 
  connects 
  this 
  structure 
  with 
  the 
  method 
  of 
  eating 
  the 
  

   ant 
  grubs 
  already 
  described, 
  when 
  this 
  thickened 
  roll 
  falls 
  

   down 
  to 
  form 
  the 
  " 
  hood 
  " 
  mentioned. 
  When 
  advanced 
  

   a 
  little 
  so 
  that 
  other 
  parts 
  of 
  the 
  prothorax 
  are 
  not 
  just 
  

   behind 
  it, 
  it 
  is 
  seen 
  to 
  be 
  devoid 
  of 
  the 
  ruddy 
  colour 
  of 
  the 
  

   rest 
  of 
  the 
  larva. 
  

  

  Sept. 
  16. 
  — 
  Nest 
  5 
  contains 
  eight 
  larvae, 
  some 
  6'0 
  or 
  7*0 
  

   mm. 
  long; 
  they 
  don't 
  seem 
  to 
  have 
  grown 
  appreciably 
  

   during 
  the 
  last 
  ten 
  days. 
  The 
  same 
  remark 
  applies 
  to 
  

   the 
  larvae 
  in 
  nest 
  2, 
  one 
  in 
  nest 
  1 
  and 
  four 
  in 
  nest 
  3. 
  In- 
  

   deed, 
  some 
  of 
  the 
  larvae 
  seem 
  to 
  be 
  hardly 
  as 
  large 
  or 
  thick 
  

   as 
  some 
  days 
  ago, 
  as 
  though 
  they 
  might 
  be 
  ceasing 
  feeding 
  

   with 
  a 
  view 
  to 
  hibernation. 
  

  

  The 
  ants 
  themselves 
  seem 
  to 
  be 
  doing 
  well, 
  and 
  eggs 
  

   and 
  young 
  grubs 
  are 
  present 
  ; 
  their 
  present 
  food 
  is 
  honey 
  

   and 
  eai'Avigs. 
  The 
  amount 
  of 
  brood, 
  however, 
  seems 
  

   hardly 
  sufficient 
  to 
  feed 
  the 
  L. 
  euphemus 
  in 
  the 
  spring, 
  if 
  

   all 
  goes 
  well 
  with 
  them. 
  Some 
  brood 
  is 
  obtained 
  and 
  added 
  

   to 
  the 
  nests, 
  but 
  unfortunaiely 
  Myrmica 
  nests 
  are 
  rare 
  with- 
  

   in 
  reasonable 
  distance, 
  and 
  those 
  fomid 
  are 
  almost 
  without 
  

   brood. 
  Possibly 
  the 
  dry 
  season 
  restricted 
  their 
  food 
  sup- 
  

   plies, 
  so 
  that 
  all 
  had 
  to 
  go 
  to 
  completing 
  rearing 
  of 
  the 
  (^(^ 
  

   and 
  $$ 
  against 
  swarming. 
  

  

  Oct. 
  8. 
  — 
  The 
  larvae 
  appear 
  to 
  be 
  about 
  the 
  same 
  size 
  

   though 
  apparently 
  still 
  eating, 
  at 
  least 
  the 
  ant 
  brood 
  seems 
  

   less 
  in 
  the 
  nests 
  with 
  little 
  brood, 
  where 
  a 
  slight 
  loss 
  makes 
  a 
  

   difference 
  ; 
  but 
  a 
  remarkable 
  circumstance 
  has 
  been 
  noticed 
  

   in 
  the 
  last 
  week 
  or 
  ten 
  days, 
  and 
  that 
  is 
  that 
  the 
  long 
  hairs 
  

   of 
  the 
  L. 
  euphemus 
  larvae 
  are 
  being 
  lost. 
  Several 
  were 
  

   noticed 
  with 
  the 
  hairs 
  very 
  short, 
  about 
  one-fourth 
  of 
  their 
  

   proper 
  length 
  ; 
  one 
  at 
  least 
  still 
  had 
  the 
  hairs 
  long. 
  Now 
  

   one 
  or 
  two 
  seems 
  to 
  have 
  none 
  of 
  the 
  long 
  hairs 
  left. 
  One 
  

   suspects 
  that 
  the 
  ants 
  bite 
  them 
  off, 
  but 
  of 
  course 
  they 
  may 
  

   be 
  thus 
  shed 
  naturally, 
  nothing 
  has 
  been 
  noticed 
  to 
  decide 
  

   between 
  these 
  possibilities. 
  

  

  Oct. 
  9. 
  — 
  Examined 
  all 
  the 
  larvae 
  of 
  L. 
  euphemus 
  that 
  

   were 
  within 
  reach 
  of 
  a 
  lens, 
  actually 
  all 
  of 
  them, 
  but 
  some 
  

   of 
  them 
  were 
  so 
  placed 
  as 
  to 
  prevent 
  their 
  being 
  fully 
  seen. 
  

   One 
  larva 
  only 
  had 
  about 
  half 
  the 
  long 
  hairs 
  present, 
  three 
  

   seemed 
  to 
  have 
  no 
  long 
  hairs 
  at 
  all, 
  the 
  remainder 
  were 
  in 
  

   various 
  intermediate 
  conditions 
  — 
  several 
  with 
  two 
  or 
  three 
  

  

  