﻿AQUATIC 
  INSECTS 
  IN 
  THE 
  ADIRONDACKS 
  

  

  499 
  

  

  genitalia 
  of 
  both 
  sexes 
  of 
  the 
  five 
  species 
  listed 
  below. 
  These 
  are 
  the 
  

   characters 
  most 
  used 
  in 
  characterizing 
  them, 
  and 
  are 
  the 
  ones 
  most 
  

   reliable 
  in 
  determining 
  specimens. 
  These 
  figures 
  show 
  the 
  appendages 
  

   to 
  be 
  unusually 
  well 
  marked 
  with 
  individuahty. 
  The 
  nymphs 
  of 
  this 
  

   genus 
  offer 
  an 
  open 
  field 
  for 
  study 
  by 
  collectors 
  in 
  boreal 
  latitudes. 
  

   Four 
  species, 
  tenebrosa, 
  walshii, 
  linearis 
  and 
  e 
  1 
  o 
  n 
  g 
  a 
  t 
  a 
  , 
  

   are 
  recorded 
  from 
  the 
  state. 
  To 
  this 
  I 
  have 
  nothing 
  to 
  add 
  but 
  a 
  new 
  

   locality 
  for 
  the 
  last 
  named, 
  and 
  a 
  partial 
  life 
  history 
  of 
  it. 
  One 
  other 
  

   species 
  occurs 
  farther 
  southward, 
  and 
  is 
  almost 
  certain 
  to 
  be 
  taken 
  in 
  this 
  

   state 
  eventually, 
  and 
  is 
  therefore 
  included 
  among 
  the 
  species 
  listed, 
  below. 
  

  

  Somatochlora 
  elongata 
  Scudder 
  

  

  Plate 
  21, 
  fig. 
  15 
  

   1866 
  Cordiilia 
  elongata 
  Scudder, 
  Bost. 
  soc. 
  nat. 
  hist. 
  Proc. 
  10 
  ; 
  218 
  

   1895 
  Somatochlora 
  elongata 
  Calvert, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  3 
  : 
  46 
  (listed 
  

   from 
  Ithaca) 
  

  

  The 
  few 
  imagos 
  I 
  saw 
  of 
  this 
  species 
  were 
  flying 
  with 
  great 
  swiftness 
  

   about 
  the 
  borders 
  of 
  Bone 
  pond. 
  The 
  single 
  nymph 
  I 
  found 
  was 
  taken 
  

  

  !^:!=i^ 
  

  

  Fig, 
  23 
  Somatochlora 
  elongata 
  Scudd., 
  end 
  of 
  abdomen; 
  d 
  and 
  e 
  of 
  male; 
  /of 
  female 
  

  

  from 
  Little 
  Clear 
  pond, 
  as 
  stated 
  above, 
  and 
  transformed 
  July 
  5. 
  A 
  cast 
  

   nymph 
  skin 
  was 
  found 
  later 
  in 
  the 
  season 
  on 
  the 
  north 
  side 
  of 
  the 
  outlet 
  

   of 
  Little 
  Clear, 
  sprawUng 
  on 
  a 
  bed 
  of 
  moss 
  but 
  a 
  few 
  inches 
  above 
  the 
  

   water 
  line. 
  

  

  