﻿58 
  

  

  seedlings 
  before 
  mentioned 
  were 
  placed 
  at 
  nighttimes. 
  It 
  was 
  

   in 
  such 
  a 
  position 
  that 
  the 
  young 
  larvae 
  might 
  drop 
  onto 
  the 
  

   cane 
  seedlings 
  below, 
  as 
  it 
  is 
  their 
  habit 
  on 
  hatching 
  to 
  drop 
  to 
  

   the 
  ground 
  by 
  a 
  silken 
  thread. 
  This 
  probably 
  accounts 
  for 
  the 
  

   cane 
  seedlings 
  having 
  been 
  infested, 
  as 
  the 
  small 
  caterpillars 
  

   were 
  scattered 
  quite 
  generally 
  amongst 
  the 
  propogating 
  boxes; 
  

   whereas, 
  if 
  a 
  cluster 
  of 
  eggs 
  had 
  been 
  deposited 
  on 
  any 
  one 
  box, 
  

   the 
  larvae 
  would 
  not 
  for 
  some 
  time 
  have 
  been 
  likely 
  to 
  get 
  to 
  

   other 
  boxes, 
  but 
  would 
  all 
  have 
  attacked 
  the 
  cane 
  plants 
  in 
  that 
  

   one 
  box. 
  

  

  When 
  larvae 
  are 
  a 
  few 
  days 
  old, 
  they 
  consume 
  the 
  entire 
  

   substance 
  of 
  the 
  leaf, 
  not 
  leaving 
  the 
  epidermis 
  as 
  they 
  did 
  at 
  

   first. 
  They 
  obtained 
  their 
  growth 
  in 
  about 
  twenty-one 
  days, 
  

   and 
  were 
  about 
  35 
  mm. 
  long. 
  From 
  being 
  green 
  at 
  

   first, 
  in 
  successive 
  molts, 
  they 
  became 
  darker, 
  often 
  almost 
  

   entirely 
  black 
  They 
  entered 
  the 
  ground 
  to 
  pupate. 
  The 
  pupa 
  

   is 
  similar 
  to 
  that 
  of 
  5. 
  exigua, 
  but 
  slightly 
  larger, 
  and 
  the 
  spiracles 
  

   a 
  little 
  more 
  raised. 
  The 
  pupal 
  period 
  is 
  eleven 
  to 
  fourteen 
  days. 
  

  

  Dyar 
  has 
  described 
  all 
  of 
  the 
  preparatory 
  stages 
  of 
  this 
  moth 
  

   (Can. 
  Ent. 
  XXVI, 
  p. 
  65, 
  1894) 
  under 
  the 
  name 
  Laphygma 
  

   flavimaculata. 
  A 
  correction 
  of 
  the 
  name 
  is 
  made 
  in 
  Can. 
  Ent. 
  

   XXXII, 
  p. 
  156, 
  1900. 
  This 
  is 
  a 
  very 
  complete 
  description, 
  but 
  

   the 
  spiracles 
  of 
  the 
  caterpillar 
  are 
  black, 
  instead 
  of 
  white 
  as 
  he 
  

   describes 
  them. 
  He 
  has 
  evidently 
  mistaken 
  for 
  spiracles 
  a 
  row 
  

   of 
  white 
  dots 
  behind 
  and 
  a 
  little 
  above 
  the 
  spiracles 
  on 
  segments 
  

   5 
  to 
  12. 
  

  

  Mr. 
  F. 
  W. 
  Terry 
  discussed 
  the 
  "Increase 
  of 
  the 
  Antennal 
  

   Segments 
  in 
  the 
  Forflculids 
  Chelisoches 
  morio 
  (Fabricius) 
  and 
  

   Forficula 
  auricularia 
  Linnaeus," 
  and 
  exhibited 
  specimens. 
  

  

  Whilst 
  studying 
  the 
  life-history 
  of 
  Chelisoches 
  morio*, 
  I 
  made 
  

   some 
  observations 
  on 
  the 
  numerical 
  increase 
  of 
  the 
  antennal 
  

   segments. 
  It 
  was 
  found 
  that 
  there 
  was 
  a 
  definite 
  increment 
  at 
  

   each 
  ecdysis, 
  the 
  extra 
  segments 
  always 
  appearing 
  to 
  arise 
  from 
  

   subdivisions 
  of 
  the 
  third 
  segment. 
  Since 
  the 
  publication 
  of 
  

   these 
  observations, 
  my 
  attention 
  has 
  been 
  called 
  to 
  a 
  paper 
  by 
  

   Meinertf 
  on 
  the 
  life-history 
  of 
  Forficula 
  auricularia. 
  This 
  

   author 
  appears 
  somewhat 
  vague 
  in 
  his 
  observations; 
  he 
  states 
  

  

  * 
  Bull. 
  Hawaiian 
  Plant. 
  Ent. 
  165-6 
  1905. 
  

   tNaturh. 
  Tidsskr. 
  (.3) 
  II, 
  427-82 
  PI. 
  IX 
  (1864). 
  

  

  