﻿534 
  NEW 
  YORK 
  StATE 
  MUSEUM 
  

  

  Libellula 
  plumbea 
  Uhler 
  

  

  1857 
  Libellula 
  plumbea 
  Uhler, 
  Acad. 
  nat. 
  sci. 
  Phil. 
  Proc. 
  p. 
  87 
  

   1861 
  Libellula 
  plumbea 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  157 
  

   1893 
  Libellula 
  plumbea 
  Calvert, 
  Am. 
  ent. 
  soc. 
  Trans. 
  20 
  : 
  256 
  (description) 
  

   1895 
  Libellula 
  plumbea 
  Calvert, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  3:47 
  (listed 
  from 
  

   Westchester 
  co.) 
  

  

  This 
  is 
  another 
  southern 
  species 
  which 
  seems 
  not 
  likely 
  to 
  be 
  found 
  

   commonly 
  in 
  the 
  state 
  excepting 
  possibly 
  in 
  the 
  lower 
  valley 
  of 
  the 
  

   Hudson 
  river. 
  Its 
  nymph 
  is 
  unknown. 
  

  

  Libellula 
  cyanea 
  Fabricius 
  

  

  1775 
  Libellula 
  cyanea 
  Fabricius, 
  Syst. 
  ent. 
  p. 
  424 
  

   1839 
  Libellula 
  quadrupla 
  Say, 
  Acad. 
  nat. 
  sci. 
  Phil. 
  Jour. 
  8 
  : 
  23 
  

   1857 
  Libellula 
  bistigma 
  Uhler, 
  Acad. 
  nat. 
  sci. 
  Phil. 
  Proc. 
  p. 
  87 
  

   1861 
  Libellula 
  quadrupla 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  157 
  

   1893 
  Libellula 
  cyanea 
  Calvert, 
  Am. 
  ent. 
  soc. 
  Trans. 
  20 
  : 
  556 
  (description) 
  

   1895 
  Libellula 
  cyanea 
  Calvert, 
  N. 
  Y. 
  eut. 
  soc. 
  Jour. 
  3:47 
  (listed 
  from 
  the 
  

   vicinity 
  of 
  New 
  York) 
  

  

  1899 
  Libellula 
  cyanea 
  Kellicott, 
  Odon. 
  Ohio, 
  p. 
  97 
  (description) 
  

  

  1900 
  Libellula 
  cyanea 
  Williamson, 
  Dragon 
  flies 
  lud. 
  p. 
  330. 
  

  

  This 
  species 
  ranges 
  from 
  Massachusetts 
  to 
  Indiana 
  and 
  South 
  CaroUna 
  ; 
  

   it 
  is 
  likely 
  to 
  be 
  found 
  eventually 
  in 
  numerous 
  unreported 
  locahties 
  in 
  

   New 
  York 
  state. 
  I 
  have 
  not 
  seen 
  it 
  at 
  large, 
  but 
  I 
  have 
  been 
  allowed 
  to 
  

   study 
  a 
  bred 
  specimen 
  kindly 
  lent 
  me 
  by 
  Samuel 
  Henshaw, 
  and 
  from 
  

   that 
  specimen, 
  the 
  following 
  characters 
  of 
  the 
  nymph 
  are 
  drawn. 
  

  

  Nymph. 
  Total 
  length 
  20 
  mm 
  ; 
  abdomen 
  13.5 
  mm 
  ; 
  hind 
  femur 
  5 
  mm 
  ; 
  

   width 
  of 
  head 
  5 
  mm, 
  of 
  abdomen 
  6.5 
  mm. 
  

  

  The 
  head 
  is 
  considerably 
  narrowed 
  behind 
  the 
  eyes, 
  and 
  the 
  hind 
  

   angles 
  are 
  rough 
  hairy 
  ; 
  lateral 
  setae 
  six 
  ; 
  mental 
  setae 
  eight 
  or 
  nine, 
  

   the 
  six 
  or 
  seven 
  external 
  ones 
  forming 
  a 
  stronger 
  series 
  ; 
  the 
  movable 
  

   hook 
  is 
  stout, 
  short 
  and 
  almost 
  straight 
  ; 
  dorsal 
  hooks 
  on 
  abdominal 
  seg- 
  

   ments 
  4-8, 
  straight 
  and 
  sharp; 
  lateral 
  spines 
  spinulose 
  hairy 
  externally, 
  

   those 
  of 
  the 
  ninth 
  segment 
  shorter 
  than 
  the 
  loth 
  segment, 
  9th 
  segment 
  

   a 
  little 
  more 
  than 
  twice 
  as 
  long 
  as 
  the 
  loth 
  ; 
  appendages 
  as 
  long 
  as 
  the 
  

   last 
  two 
  segments, 
  the 
  lateral 
  appendages 
  half 
  as 
  long 
  as 
  the 
  others. 
  

  

  Libellula 
  quadrimaculata 
  Linnaeus 
  

  

  1785 
  Libellula 
  quadrimaculata 
  Linnaeus, 
  Syst. 
  nat. 
  1 
  : 
  543 
  

   1861 
  Libellula 
  quadrimaculata 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  150 
  

   1867 
  Libellula 
  quadrimaculata 
  Packard, 
  Am. 
  nat. 
  1 
  : 
  310, 
  pi. 
  9, 
  fig. 
  2 
  

   1893 
  Libel 
  lul 
  a 
  quadrimaculata 
  Calvert, 
  Am. 
  ent. 
  soc. 
  Trans. 
  20:258 
  

   1893-97 
  Libellula 
  quadrimaculata 
  Calvert, 
  N. 
  Y, 
  ent. 
  soc. 
  Jour. 
  3 
  : 
  47 
  

   and 
  5 
  : 
  94 
  (listed 
  from 
  New 
  York, 
  Ithaca, 
  Schoharie, 
  Karner 
  and 
  Buffalo) 
  

  

  1899 
  Libellula 
  quadrimaculata 
  Kellicott, 
  Odon. 
  Ohio, 
  p. 
  100 
  (descrip- 
  

  

  tion) 
  

  

  1900 
  Libellula 
  quadrimaculata 
  Williamson, 
  Dragon 
  flies 
  Ind. 
  p. 
  331 
  

  

  (description) 
  

  

  