﻿164 
  

  

  a 
  native 
  cut-worm 
  (Agrotis 
  cinciipennis^vXX.) 
  . 
  A 
  considerable 
  

   mystery 
  is 
  connected 
  with 
  the 
  case, 
  the 
  facts 
  of 
  which 
  follow. 
  A 
  

   cluster 
  of 
  291 
  eggs 
  of 
  this 
  moth 
  were 
  found 
  on 
  a 
  mango 
  leaf 
  in 
  

   Nuuanu 
  Valley 
  by 
  Mr. 
  Kotinsky, 
  and 
  turned 
  over 
  to 
  me 
  for 
  rear- 
  

   ing. 
  Many 
  of 
  the 
  young 
  caterpillars 
  died; 
  but 
  of 
  those 
  which 
  

   attained 
  full-growth 
  and 
  pupated, 
  only 
  34 
  produced 
  moths, 
  while 
  

   from 
  51 
  of 
  the 
  pupae 
  Tachinids 
  emerged. 
  This 
  Tachinid 
  is 
  very 
  

   common 
  and 
  parasitizes 
  all 
  species 
  of 
  cut-worms, 
  army-worms, 
  

   and 
  many 
  other 
  caterpillars. 
  The 
  mystery 
  involved 
  is 
  this: 
  

   How 
  did 
  this 
  lot 
  of 
  caterpillars 
  become 
  parasitized? 
  The 
  eggs 
  

   hatched 
  in 
  a 
  breeding 
  jar, 
  and 
  the 
  caterpillars 
  during 
  all 
  the 
  time 
  

   of 
  their 
  growth 
  were 
  enclosed, 
  with 
  no 
  possible 
  opportunity 
  of 
  

   being 
  attacked 
  by 
  a 
  Tachinid 
  for 
  the 
  purpose 
  of 
  egg-laying. 
  

   When 
  about 
  half-grown 
  the 
  caterpillars 
  were 
  divided 
  into 
  three 
  

   lots 
  (Mr. 
  Kotinsky 
  having 
  one 
  lot), 
  and 
  Tachinids 
  bred 
  out 
  from 
  

   each 
  of 
  the 
  three 
  lots. 
  Questions 
  remaining 
  unanswered 
  are: 
  

   Were 
  there 
  Tachinid 
  eggs 
  somewhere 
  on 
  the 
  food-plants 
  (which 
  

   were 
  largely 
  Sonclnis 
  and 
  supplied 
  from 
  day 
  to 
  day) 
  which 
  

   hatched 
  and 
  the 
  maggots 
  attacked 
  the 
  caterpillars 
  ? 
  Were 
  there 
  

   Tachinid 
  eggs 
  on 
  the 
  leaf 
  with 
  the 
  cut- 
  worm 
  eggs? 
  Were 
  the 
  

   Tachinid 
  eggs 
  deposited 
  individually 
  on 
  the 
  cut-worm 
  eggs 
  ? 
  It 
  

   certainly 
  appears 
  as 
  tho 
  this 
  Tachinid 
  has 
  a 
  different 
  method 
  of 
  

   ovipositing 
  from 
  others, 
  so 
  far 
  as 
  they 
  are 
  known, 
  for 
  they 
  are 
  

   always 
  described 
  as 
  laying 
  their 
  eggs 
  on 
  the 
  caterpillars. 
  I 
  have 
  

   made 
  some 
  attempts 
  at 
  discovering 
  the 
  mode 
  of 
  ovipositing 
  for 
  

   this 
  species, 
  but 
  so 
  far 
  with 
  no 
  success." 
  

  

  AUGUST 
  8th, 
  1907. 
  

  

  The 
  thirty-first 
  regular 
  meeting 
  was 
  held 
  in 
  the 
  Library 
  of 
  the 
  

   Bureau 
  of 
  Agriculture, 
  Mr. 
  Bwezey 
  in 
  the 
  Chair. 
  

  

  NOTES 
  AND 
  EXHIBITIONS. 
  

  

  Mr. 
  W. 
  W. 
  Froggatt 
  (of 
  the 
  Dep. 
  of 
  Agriculture, 
  New 
  South 
  

   Wales) 
  present 
  as 
  a 
  visitor, 
  presented 
  the 
  following 
  notes 
  on 
  

   Entomology, 
  principally 
  economic, 
  in 
  Australia. 
  He 
  opened 
  his 
  

   remarks 
  by 
  pointing 
  out 
  the 
  variety 
  of 
  climate 
  and 
  topography 
  of 
  

   the 
  continent, 
  and 
  the 
  consequent 
  variety 
  of 
  the 
  insect 
  fauna. 
  In 
  

   his 
  work 
  against 
  injurious 
  insects 
  he 
  emphasized 
  the 
  successful 
  

   practice 
  of 
  cyaniding 
  the 
  trees, 
  especially 
  when 
  the 
  pests 
  were 
  

  

  