﻿22 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  under 
  surface. 
  Breeding 
  evidently 
  continues 
  from 
  some 
  time 
  in 
  

   March 
  until 
  into 
  July, 
  with 
  the 
  production 
  of 
  numerous 
  winged 
  

   individuals 
  the 
  latter 
  part 
  of 
  July, 
  at 
  least 
  in 
  the 
  case 
  of 
  

  

  bulbs 
  submitted 
  for 
  examination, 
  

   though 
  winged 
  females 
  un- 
  

   doubtedly 
  occur 
  earlier 
  in 
  the 
  

   season 
  under 
  warehouse 
  condi- 
  

   tions. 
  By 
  July 
  28th 
  winged 
  fe- 
  

   males 
  had 
  entirely 
  disappeared 
  

   in 
  our 
  breeding 
  cages, 
  though 
  

   ^ 
  ^ 
  young 
  were 
  still 
  numerous 
  on 
  

  

  Fig. 
  9 
  Gladioli 
  aphid, 
  posterior 
  extremity 
  the 
  bulbs 
  ; 
  later, 
  all 
  disappeared. 
  

  

  of 
  young 
  nymph, 
  enlarged. 
  (0rij,i.ial) 
  a 
  • 
  ,• 
  ,• 
  t, 
  < 
  - 
  1 
  -jji 
  

  

  An 
  mvestigation 
  about 
  the 
  middle 
  

   of 
  August 
  resulted 
  in 
  finding 
  no 
  living 
  aphids 
  in 
  the 
  storage 
  ware- 
  

   house 
  or 
  upon 
  the 
  plants 
  in 
  the 
  field. 
  It 
  is 
  stated 
  that 
  when 
  dig- 
  

   ging 
  in 
  October 
  a 
  few 
  plant 
  lice 
  may 
  be 
  found 
  upon 
  the 
  bulbs. 
  

   These 
  evidently 
  remain 
  in 
  a 
  dormant 
  condition 
  till 
  the 
  house 
  

   warms 
  up 
  in 
  the 
  spring 
  as 
  described 
  above. 
  

  

  Remedies. 
  Fumigation 
  with 
  sulfur 
  has 
  been 
  found 
  ineffective 
  

   in 
  controlling 
  this 
  species. 
  It 
  is 
  more 
  than 
  probable 
  that 
  judicious 
  

   fumigation 
  with 
  hydrocyanic 
  acid 
  gas 
  would 
  be 
  entirely 
  successful 
  

   in 
  controlling 
  this 
  pest. 
  This 
  might 
  be 
  accomplished 
  by 
  treating 
  

   the 
  entire 
  house 
  or 
  by 
  arranging 
  for 
  the 
  fumigation 
  of 
  badly 
  in- 
  

   fested 
  trays 
  whenever 
  necessary. 
  The 
  bulbs 
  would 
  probably 
  not 
  

   be 
  injured 
  by 
  any 
  strength 
  of 
  gas 
  which 
  would 
  be 
  harmless 
  to 
  

   ordinary 
  growing 
  plants, 
  and 
  it 
  is 
  probable 
  that 
  more 
  gas 
  could 
  

   be 
  used 
  with 
  safety. 
  This 
  point 
  can 
  be 
  determined 
  only 
  by 
  actual 
  

   tests 
  made 
  preferably 
  under 
  warehouse 
  conditions. 
  

  

  Green 
  cockroach 
  

  

  Panchlora 
  hyalina 
  Saus. 
  

  

  Two 
  specimens 
  of 
  this 
  Central 
  American 
  form, 
  kindly 
  deter- 
  

   mined 
  through 
  the 
  courtesy 
  of 
  Dr 
  L. 
  O. 
  Howard, 
  were 
  brought 
  to 
  

   the 
  office 
  in 
  March, 
  each 
  taken 
  from 
  a 
  different 
  section 
  of 
  

   Albany, 
  N. 
  Y. 
  The 
  occurrence 
  of 
  a 
  single 
  specimen 
  would 
  have 
  

   little 
  significance, 
  as 
  it 
  might 
  easily 
  have 
  been 
  brought 
  to 
  the 
  city 
  

   upon 
  fruit 
  boats, 
  but 
  the 
  finding 
  of 
  two 
  in 
  different 
  sections 
  is 
  not 
  

   so 
  readily 
  explained, 
  particularly 
  as 
  we 
  find 
  records 
  of 
  this 
  species 
  

   having 
  been 
  taken 
  in 
  other 
  parts 
  of 
  the 
  country. 
  The 
  earliest 
  

   record 
  is 
  that 
  of 
  a 
  specimen 
  being 
  captured 
  in 
  a 
  store 
  in 
  Boston 
  

  

  