﻿AQUATIC 
  INSECTS 
  IN 
  THE 
  ADIRONDACKS 
  455 
  

  

  1897 
  Gomplins 
  umbratus 
  Needham, 
  Can. 
  eut. 
  29:184 
  (described, 
  from 
  

  

  Itbaca) 
  

   1900 
  Gomphus 
  sordidus 
  WilliamsoD, 
  Dragon 
  flies 
  Ind. 
  p. 
  292 
  

  

  There 
  are 
  plenty 
  of 
  descriptions 
  and 
  figures 
  of 
  this 
  troublesome 
  species, 
  

   as 
  will 
  be 
  seen 
  from 
  the 
  above 
  bibliography. 
  I 
  found 
  both 
  imagos 
  and 
  

   nymphs 
  associated 
  with 
  the 
  same 
  stages 
  of 
  G. 
  descriptus 
  Banks 
  at 
  

   Ithaca. 
  It 
  is 
  entirely 
  similar 
  to 
  that 
  species 
  in 
  habits, 
  and 
  in 
  appearance, 
  

   but 
  will 
  be 
  readily 
  distinguished 
  by 
  the 
  characters 
  given 
  in 
  the 
  tables. 
  

   The 
  nymph 
  is 
  not 
  easy 
  to 
  distinguish, 
  however; 
  in 
  fact, 
  I 
  find 
  it 
  

   necessary 
  to 
  make 
  a 
  microscopic 
  examination 
  of 
  the 
  labium 
  before 
  

   being 
  sure 
  as 
  to 
  the 
  species. 
  I 
  bred 
  a 
  good 
  many 
  specimens 
  at 
  Ithaca. 
  

   By 
  way 
  of 
  description, 
  I 
  will 
  only 
  say 
  that 
  it 
  is 
  entirely 
  similar 
  to 
  the 
  

   nymph 
  of 
  des 
  cr 
  ip 
  t 
  u 
  s 
  , 
  so 
  far 
  as 
  known 
  to 
  me, 
  excepting 
  in 
  the 
  dif- 
  

   ferential 
  character 
  stated 
  in 
  the 
  table, 
  

  

  Gomphus 
  exilis 
  Selys 
  

  

  1854 
  Gompbus 
  exilis 
  Selys, 
  Acad. 
  Belg. 
  (2) 
  Bui. 
  21 
  : 
  55 
  

   1861 
  Gompbus 
  exilis 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  108 
  

   1872 
  Gompbus 
  exilis 
  Hagen, 
  Bost. 
  soc. 
  nat. 
  hist. 
  Proc. 
  15 
  : 
  273 
  

   1875 
  Gompbus 
  exilis 
  Hagen, 
  Bost. 
  soc. 
  nat. 
  hist. 
  Proc. 
  18 
  : 
  45 
  

   1885 
  Gompbus 
  exilis 
  Hagen, 
  Am. 
  ent. 
  soc. 
  Trans. 
  12:263-64 
  (descrip- 
  

   tion 
  of 
  the 
  nympb, 
  and 
  remarks 
  on 
  distribution) 
  

  

  1893 
  Gomphus 
  exilis 
  Hagen, 
  Am. 
  ent. 
  soc. 
  Trans. 
  20 
  : 
  243 
  (description) 
  

  

  1894 
  Gompbus 
  exilis 
  Banks, 
  Can. 
  ent. 
  26 
  : 
  77 
  (listed 
  from 
  Ithaca) 
  

  

  1895 
  Gompbus 
  exilis 
  Calvert, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  3 
  : 
  45 
  (listed 
  from 
  

  

  Keeseville) 
  

  

  1899 
  Gompbus 
  exilis 
  Kellicott, 
  Odon. 
  Ohio, 
  p. 
  65 
  (description 
  and 
  figure) 
  

  

  1900 
  Gompbus 
  exilis 
  Williamson, 
  Dragon 
  flies 
  Ind. 
  p. 
  293 
  (description 
  

  

  and 
  figure) 
  

  

  This 
  is 
  one 
  of 
  the 
  most 
  generally 
  distributed, 
  and 
  perhaps 
  the 
  com- 
  

   monest 
  of 
  the 
  gomphines 
  of 
  the 
  northeastern 
  United 
  States. 
  At 
  

   Saranac 
  Inn 
  it 
  was 
  abundant, 
  flitting 
  by 
  every 
  roadside 
  throughout 
  the 
  

   month 
  of 
  June 
  and 
  well 
  along 
  into 
  July. 
  The 
  nymphs 
  were 
  found 
  in 
  all 
  

   waters, 
  and 
  about 
  the 
  first 
  of 
  July 
  the 
  exuviae 
  fairly 
  sprinkled 
  every 
  

   bank. 
  Few 
  imagos 
  were 
  observed 
  in 
  the 
  immediate 
  vicinity 
  of 
  the 
  water, 
  

   after 
  leaving 
  it 
  at 
  transformation, 
  and 
  these 
  few 
  were 
  mostly 
  females 
  

   ovipositing. 
  These 
  spin 
  along 
  through 
  the 
  air 
  at 
  a 
  lively 
  rate, 
  unattended 
  

   by 
  the 
  male, 
  descending 
  here 
  and 
  there 
  to 
  strike 
  the 
  surface 
  and 
  liberate 
  

   eggs, 
  making 
  but 
  one 
  or 
  two 
  dips 
  in 
  a 
  place, 
  and 
  flying 
  some 
  distance 
  

   before 
  descending 
  again. 
  The 
  nymphs 
  transform 
  at 
  the, 
  very 
  edge 
  of 
  

   the 
  water, 
  seldom 
  crawling 
  more 
  than 
  an 
  inch 
  or 
  two 
  above 
  the 
  surface 
  

   of 
  it. 
  Moss-grown 
  logs 
  in 
  the 
  edges 
  of 
  Little 
  Clear 
  pond 
  were 
  in 
  many 
  

  

  