﻿532 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Nymphs 
  

  

  a 
  Dorsal 
  liooks 
  on 
  the 
  seventh 
  and 
  eighth 
  abdominal 
  segments 
  long 
  and 
  sharp 
  

  

  h 
  Lateral 
  setae 
  five 
  auripennis 
  

  

  l)h 
  Lateral 
  setae 
  six 
  cyanea 
  

  

  hhl) 
  Lateral 
  setae 
  seven 
  has 
  alls 
  

  

  aa 
  Dorsal 
  hooks 
  on 
  the 
  seventh 
  and 
  eighth 
  abdominal 
  segments 
  rudimentary 
  

   (and 
  hidden 
  among 
  scurfy 
  hairs) 
  or 
  wanting 
  

  

  h 
  Lateral 
  setae 
  seven 
  quadrimaculata 
  

  

  hJ} 
  Lateral 
  setae 
  eight 
  to 
  nine 
  ^ 
  pulchella 
  

  

  aaa 
  Nymphs 
  unknown 
  

  

  axillena, 
  plumbea, 
  incesta 
  and 
  semifasciata 
  

  

  Libellula 
  basalis 
  Say 
  

  

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

   1839 
  LibelluJ 
  a 
  luctuosa 
  Burmeister, 
  Handb. 
  eut. 
  2:861 
  

   1861 
  Libellula 
  luctuosa 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  152 
  

   1875 
  Libellula 
  basalis 
  Hagen, 
  Bost. 
  soc. 
  nat. 
  hist. 
  Proc. 
  18 
  : 
  70 
  

   1893 
  Libellula 
  basalis 
  Calvert, 
  Am. 
  ent. 
  soc. 
  Trans. 
  20 
  : 
  255 
  (description) 
  

   1895-97 
  Libellula 
  basalis 
  Calvert, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  3:47 
  and 
  5:94 
  

   (listed 
  from 
  Dobbs 
  Ferry, 
  Ithaca, 
  Kenwood, 
  Niagara 
  river) 
  

  

  1899 
  Libellula 
  basalis 
  Kellicott, 
  Odon. 
  Ohio, 
  p. 
  96 
  (description) 
  

  

  1900 
  Libellula 
  basalis 
  Williamson, 
  Dragon 
  flies 
  Ind. 
  p. 
  329 
  

  

  This 
  is 
  not 
  one 
  of 
  the 
  more 
  common 
  species 
  apparently 
  in 
  New 
  York 
  

   state. 
  I 
  have 
  taken 
  a 
  few 
  specimens 
  at 
  Ithaca 
  j 
  I 
  saw 
  one 
  imago 
  at 
  

   Saranac 
  Inn, 
  and 
  took 
  one 
  nymph 
  there. 
  I 
  studied 
  and 
  reared 
  the 
  

   species 
  in 
  1895 
  at 
  Galesburg 
  111., 
  where 
  it 
  is 
  abundant. 
  Of 
  a 
  June 
  

   morning 
  half 
  an 
  hour 
  after 
  sunrise, 
  I 
  have 
  seen 
  scores 
  of 
  the 
  nymphs 
  

   transforming 
  at 
  a 
  time 
  on 
  the 
  blue-grass 
  bordered 
  banks 
  of 
  a 
  little 
  pond. 
  

  

  Nymph. 
  Total 
  length 
  25 
  mm; 
  abdomen, 
  14 
  mm; 
  hind 
  femur 
  5.5 
  

   mm; 
  width 
  of 
  head, 
  5.5 
  mm, 
  of 
  abdomen, 
  6.5 
  mm. 
  

  

  The 
  points 
  which 
  will 
  chiefly 
  serve 
  for 
  comparison 
  with 
  other 
  species 
  

   are 
  as 
  follows 
  : 
  body 
  not 
  very 
  hairy, 
  generally 
  dirty 
  and 
  showing 
  little 
  

   color 
  pattern; 
  lateral 
  setae, 
  seven; 
  mental 
  setae 
  about 
  10 
  or 
  11, 
  the 
  

   outer 
  five 
  or 
  six 
  in 
  a 
  longer 
  series 
  ; 
  movable 
  hook, 
  long, 
  slender, 
  little 
  

   curved; 
  dorsal 
  hooks 
  on 
  abdominal 
  segments 
  4-8 
  all 
  sharp 
  and 
  well 
  

   exposed, 
  but 
  the 
  sixth 
  longest. 
  

  

  Libellula 
  auripennis 
  Burmeister 
  

  

  Golden-wing 
  

  

  1839 
  Libellula 
  auTipennis 
  Burmeister, 
  Handb. 
  ent. 
  2 
  : 
  861 
  

   1861 
  Libellula 
  auripennis 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  155 
  

   1866 
  Libellula 
  auripennis 
  Scudder, 
  Bost. 
  soc. 
  nat. 
  hist. 
  Proc. 
  10:191 
  

   1893 
  Libellula 
  auripennis 
  Calvert, 
  Am. 
  ent. 
  soc. 
  Trans. 
  20:256 
  (de- 
  

   scription) 
  

  

  