﻿128 
  

  

  eleven 
  egg 
  batches. 
  These 
  egg 
  batches 
  were 
  found 
  attached 
  to 
  

   the 
  koa 
  leaves 
  in 
  single 
  layered 
  masses 
  consisting 
  of 
  from 
  

   seven 
  to 
  fifty-two 
  eggs 
  (PL 
  3, 
  Fig. 
  4.) 
  In 
  every 
  instance 
  under 
  

   examination, 
  whether 
  in 
  capticity 
  in 
  jars 
  or 
  under 
  a 
  net 
  on 
  

   selected 
  branches 
  of 
  the 
  living 
  tree 
  itself, 
  it 
  was 
  found 
  that 
  

   the 
  female 
  concealed 
  her 
  egg 
  batch 
  by 
  covering 
  it 
  with 
  an 
  

   adjoining 
  leaf 
  or 
  some 
  portion 
  thereof. 
  To 
  attain 
  this 
  pur- 
  

   pose, 
  the 
  female 
  deposits 
  a 
  quantity 
  of 
  mucous 
  around 
  the 
  

   margin 
  of 
  the 
  egg 
  batch 
  to 
  which 
  the 
  protecting 
  leaf 
  adheres. 
  

   (PL 
  3, 
  Fig. 
  3) 
  . 
  My 
  observations 
  during 
  the 
  above 
  period 
  show 
  that 
  

   the 
  time 
  necessary 
  for 
  the 
  hatching 
  of 
  the 
  eggs 
  averaged 
  in 
  

   these 
  instances 
  about 
  thirteen 
  days 
  from 
  the 
  date 
  of 
  their 
  

   oviposition. 
  The 
  larvae 
  hatched 
  out 
  from 
  all 
  these 
  eggs 
  have 
  

   been 
  deposited 
  in 
  soil 
  and 
  roots 
  in 
  glass 
  jars 
  for 
  future 
  obser- 
  

   vation. 
  

  

  The 
  scarcity 
  of 
  the 
  beetle 
  led 
  me 
  to 
  make 
  an 
  effort 
  to 
  find 
  a 
  

   possible 
  parasite 
  and 
  in 
  consequence 
  the 
  adoption 
  of 
  another 
  

   method 
  of 
  experimenting 
  was 
  undertaken. 
  Having 
  selected 
  a 
  

   suitable 
  koa 
  tree, 
  I 
  placed 
  over 
  one 
  of 
  its 
  smaller 
  branches 
  a 
  

   net 
  bag 
  within 
  which 
  were 
  deposited 
  the 
  remaining 
  beetles 
  

   from 
  the 
  jar, 
  adding 
  several 
  others 
  taken 
  by 
  me 
  subsequently. 
  

   Whether 
  owing 
  to 
  the 
  ovipositing 
  period 
  having 
  nearly 
  ceased 
  

   or 
  for 
  other 
  unknown 
  reasons, 
  I 
  found 
  a 
  marked 
  decrease 
  of 
  

   egg 
  production 
  in 
  spite 
  of 
  the 
  addition 
  of 
  several 
  females 
  to 
  

   the 
  colony. 
  During 
  a 
  period 
  of 
  seventy-seven 
  days 
  only 
  

   twenty-one 
  batches 
  were 
  found, 
  as 
  against 
  forty-five 
  in 
  the 
  

   sixty 
  days 
  previously 
  noted. 
  Periodic 
  visits 
  were 
  made 
  every 
  

   tenth 
  or 
  twelfth 
  day 
  to 
  the 
  tree, 
  transferring 
  both 
  net 
  and 
  

   beetles 
  to 
  a 
  new 
  branch 
  on 
  every 
  visit, 
  at 
  which 
  time 
  the 
  egg 
  

   batches 
  were 
  counted 
  and 
  recorded, 
  but 
  left 
  exposed 
  for 
  any 
  

   attack 
  of 
  parasites 
  during 
  the 
  ensuing 
  ten 
  or 
  twelve 
  days. 
  The 
  

   hatching 
  period 
  in 
  these 
  instances 
  averaged 
  sixteen 
  days 
  from 
  

   the 
  date 
  of 
  oviposition, 
  or 
  an 
  average 
  of 
  about 
  six 
  days 
  after 
  

   cutting 
  away 
  the 
  egg 
  batches 
  from 
  the 
  branch. 
  

  

  At 
  the 
  close 
  of 
  the 
  experiments 
  above 
  referred 
  to, 
  ten 
  live 
  

   beetles, 
  (six 
  males 
  and 
  four 
  females) 
  were 
  taken 
  from 
  the 
  net 
  

   and 
  placed 
  in 
  a 
  small 
  glass 
  jar 
  to 
  further 
  determine 
  the 
  time 
  

   necessary 
  for 
  the 
  hatching 
  of 
  such 
  eggs 
  as 
  might 
  be 
  oviposited. 
  

   Eight 
  batches 
  in 
  all 
  were 
  taken 
  from 
  the 
  jar 
  within 
  forty-eight 
  

   hours 
  of 
  the 
  confinement 
  of 
  the 
  colony. 
  The 
  leaf 
  concealing 
  

   each 
  batch 
  was 
  carefully 
  withdrawn 
  and 
  the 
  eggs 
  in 
  each 
  

   counted. 
  The 
  total 
  oviposition 
  by 
  these 
  four 
  females 
  during 
  

   the 
  forty-eight 
  hours 
  was 
  found 
  to 
  be 
  two 
  hundred 
  and 
  thirty 
  

  

  