﻿AQUATIC 
  INSECTS 
  IN 
  THE 
  ADIRONDACKS 
  

  

  399 
  

  

  friend, 
  Dr 
  Westcott, 
  using. 
  The 
  lantern 
  part 
  is 
  of 
  the 
  " 
  search 
  light 
  " 
  

   type 
  to 
  be 
  found 
  on 
  the 
  market, 
  with 
  large 
  parabolic 
  reflector 
  having 
  

   projecting 
  edges. 
  The 
  trap 
  part 
  consists 
  of 
  a 
  

   circular 
  flaring 
  band 
  of 
  tin, 
  whose 
  slope 
  con- 
  

   tinues 
  that 
  of 
  the 
  edges 
  of 
  the 
  reflector, 
  inside 
  

   which 
  it 
  is 
  pushed 
  and 
  fastened. 
  It 
  has 
  two 
  

   transversely 
  placed 
  sheets 
  of 
  wire 
  screen 
  within 
  

   it, 
  arranged 
  as 
  shown 
  in 
  the 
  accompanying 
  

   figure, 
  and 
  on 
  the 
  lower 
  side 
  within 
  the 
  trap 
  

   there 
  is 
  an 
  open, 
  detachable 
  cup 
  to 
  hold 
  the 
  

   cyanid 
  of 
  potassium. 
  It 
  is 
  easily 
  managed 
  and 
  

   very 
  effective, 
  and 
  the 
  specimens 
  are 
  in 
  the 
  

   main 
  obtained 
  in 
  good 
  condition. 
  The 
  lantern 
  

   of 
  the 
  markets 
  has 
  many 
  advantages 
  in 
  the 
  way 
  

   of 
  conveniences 
  over 
  lanterns 
  of 
  home 
  construc- 
  

   tion. 
  

  

  Fig. 
  3 
  Sectional 
  diagram 
  of 
  

  

  lantern 
  trap 
  

   R, 
  edge 
  of 
  lantern 
  

  

  u 
  the 
  globe 
  

  

  w 
  edge 
  of 
  parabolic 
  reflector 
  

   S, 
  the 
  trap 
  

  

  o 
  catch 
  for 
  attachment 
  to 
  

   reflector 
  

  

  6 
  the 
  entrance 
  between 
  two 
  

   sheets 
  of 
  screen 
  

  

  c 
  detachable 
  cyanid 
  cup 
  

  

  Assistance 
  in 
  preparing 
  this 
  report. 
  At 
  

  

  the 
  conclusion 
  of 
  my 
  work 
  at 
  Saranac 
  Inn, 
  I 
  

   went 
  to 
  Cambridge 
  Mass., 
  where, 
  through 
  the 
  

   courtesy 
  of 
  Mr 
  Samuel 
  Henshaw, 
  I 
  was 
  allowed 
  

   to 
  spend 
  several 
  weeks 
  determining 
  the 
  specimens 
  I 
  had 
  collected, 
  by 
  

   comparison 
  with 
  specimens 
  in 
  the 
  museum 
  of 
  comparative 
  zoology. 
  

   During 
  this 
  time 
  Mr 
  Henshaw 
  showed 
  me 
  many 
  kindnesses 
  and 
  took 
  the 
  

   trouble 
  himself 
  to 
  determine 
  the 
  names 
  of 
  a 
  number 
  of 
  species. 
  I 
  am 
  

   also 
  under 
  special 
  obligation 
  to 
  Mr 
  D. 
  W. 
  Coquillett 
  and 
  Mr 
  William 
  H. 
  

   Ashmead, 
  of 
  the 
  U. 
  S. 
  national 
  museum, 
  for 
  the 
  study 
  and 
  determination 
  

   of 
  numerous 
  Diptera 
  and 
  Hymenoptera 
  respectively, 
  and 
  for 
  the 
  descrip- 
  

   tions 
  of 
  new 
  species 
  sent 
  me 
  by 
  them 
  to 
  be 
  published 
  as 
  a 
  part 
  of 
  this 
  

   report. 
  I 
  am 
  indebted, 
  also, 
  for 
  determinations, 
  to 
  a 
  number 
  of 
  other 
  

   gentlemen, 
  as 
  follows 
  : 
  Trichoptera, 
  Nathan 
  Banks; 
  Orthoptera, 
  Dr 
  S. 
  H. 
  

   Scudder; 
  Homoptera, 
  Prof. 
  Herbert 
  Osborn 
  ; 
  leeches, 
  Dr 
  W. 
  E. 
  Castle 
  

   and 
  Dr 
  J. 
  Percy 
  Moore 
  ; 
  moUusks, 
  Frajnk 
  C. 
  Baker 
  ; 
  an 
  entomostracan, 
  

   Prof. 
  E. 
  A. 
  Birge. 
  

  

  The 
  colored 
  plates 
  have 
  been 
  made 
  by 
  L. 
  H. 
  Joutel. 
  The 
  figures 
  of 
  

   Trichoptera 
  are 
  by 
  Mrs 
  J. 
  H. 
  Comstock. 
  Those 
  of 
  Diptera, 
  Plecoptera 
  

   and 
  Ephemerida 
  are 
  by 
  Miss 
  Maude 
  H. 
  Anthony. 
  Those 
  of 
  Odonata 
  

   are 
  drawn 
  by 
  myself. 
  The 
  figures 
  made 
  from 
  photographs 
  taken 
  by 
  

   other 
  persons 
  than 
  myself, 
  contain 
  the 
  proper 
  acknowledgment 
  in 
  their 
  

   legends. 
  

  

  