﻿466 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  the 
  laterals 
  are 
  one 
  fourth 
  as 
  long, 
  and 
  the 
  superiors 
  eight 
  ninths 
  as 
  long 
  

   as 
  the 
  inferiors. 
  

  

  Some 
  smaller 
  nymphs 
  from 
  the 
  creek 
  show 
  a 
  middorsal 
  black 
  band 
  on 
  

   the 
  abdomen, 
  divided 
  by 
  a 
  median 
  row 
  of 
  small 
  yellow 
  spots, 
  largest 
  on 
  

   the 
  eighth 
  segment. 
  

  

  Basiaeschna 
  Janata 
  Say 
  

  

  1839 
  A 
  e 
  s 
  c 
  h 
  D 
  a 
  Janata 
  Say, 
  Acad. 
  uat. 
  sci. 
  Phil. 
  Jour. 
  8 
  : 
  13 
  

   1842 
  Aeschna 
  minor 
  Ram 
  bur, 
  Ins. 
  Neur. 
  p. 
  207 
  

   1861 
  Aeschna 
  Janata 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  125 
  

   1875 
  Aeschna 
  Janata 
  Hageu, 
  Bost. 
  soc. 
  nat. 
  hist. 
  Proc. 
  18:33 
  (full 
  bibli- 
  

   ography 
  and 
  distribution) 
  

   1895 
  Basiaeschna 
  Janata 
  Calvert, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  3 
  : 
  45 
  (listed 
  from 
  

   Keeseville) 
  

  

  1899 
  Basiaeschna 
  Janata 
  Kellicott, 
  Odon. 
  Ohio, 
  p. 
  81 
  (description) 
  

  

  1900 
  Basiaeschna 
  janata 
  Williamson, 
  Dragon 
  flies 
  Ind. 
  p. 
  301 
  (descrip- 
  

  

  tion) 
  

  

  This 
  species 
  is 
  perhaps 
  the 
  earliest 
  of 
  the 
  Aeschninae. 
  It 
  was 
  

   common 
  about 
  the 
  hatchery 
  grounds 
  on 
  our 
  arrival, 
  and 
  had 
  about 
  dis- 
  

   appeared 
  by 
  midsummer. 
  I 
  got 
  mostly 
  immature 
  nymphs 
  at 
  Saranac 
  

   Inn, 
  but 
  I 
  bred 
  the 
  species 
  abundantly 
  at 
  Ithaca 
  several 
  years 
  ago. 
  

   I 
  saw 
  females 
  ovipositing 
  several 
  times 
  during 
  the 
  first 
  week 
  of 
  our 
  stay 
  

   at 
  Saranac 
  Inn, 
  and 
  watched 
  the 
  process 
  once 
  in 
  detail. 
  In 
  each 
  

   instance 
  observed 
  the 
  eggs 
  were 
  deposited 
  in 
  leaves 
  of 
  a 
  species 
  of 
  bur- 
  

   reed, 
  Sparganium, 
  which, 
  where 
  it 
  grew 
  in 
  the 
  deeper 
  water 
  of 
  the 
  

   creek, 
  trailed 
  its 
  long 
  leaves 
  on 
  the 
  surface 
  of 
  the 
  stream. 
  The 
  female 
  

   flitted 
  from 
  plant 
  to 
  plant, 
  making 
  a 
  few 
  thrusts 
  with 
  her 
  ovipositor 
  into 
  

   each 
  at 
  the 
  water 
  line, 
  and 
  then 
  settled 
  and 
  balanced 
  herself 
  carefully 
  oti 
  

   a 
  long, 
  floating 
  leaf; 
  this 
  was 
  doubtless 
  a 
  most 
  favorable 
  place 
  for 
  the 
  

   eggs, 
  and 
  she 
  settled 
  down 
  to 
  more 
  extensive 
  operations. 
  Backing 
  down 
  

   into 
  the 
  water 
  till 
  the 
  abdomen 
  was 
  wholly 
  submerged, 
  she 
  began 
  

   thrusting 
  with 
  her 
  ovipositor, 
  first 
  to 
  right 
  and 
  then 
  to 
  left, 
  moving 
  for- 
  

   ward 
  a 
  little 
  between 
  thrusts, 
  leaving 
  behind 
  a 
  double 
  row 
  of 
  egg 
  punc- 
  

   tures, 
  as 
  regular 
  as 
  the 
  neatest 
  double 
  stitching 
  that 
  might 
  be 
  done 
  with 
  

   a 
  needle. 
  Several 
  such 
  double 
  rows 
  of 
  eggs 
  were 
  placed 
  in 
  the 
  tissues 
  

   of 
  this 
  leaf 
  before 
  she 
  left 
  it. 
  The 
  leaf 
  was 
  found 
  to 
  be 
  thickly 
  covered 
  

   on 
  the 
  under 
  side 
  (as 
  all 
  submerged 
  surfaces 
  were 
  covered 
  in 
  the 
  creek 
  

   at 
  that 
  time) 
  with 
  hundreds 
  of 
  red 
  hydras, 
  in 
  all 
  stages 
  of 
  budding. 
  I 
  

   placed 
  the 
  leaf 
  in 
  a 
  hatchery 
  trough, 
  where 
  the 
  hydras 
  remained 
  in 
  good 
  

   condition 
  till 
  after 
  the 
  hatching 
  of 
  the 
  eggs. 
  

  

  Nymph. 
  Total 
  length 
  43 
  mm 
  ; 
  abdomen 
  30 
  mm 
  ; 
  hind 
  femur 
  6 
  mm 
  ; 
  

   width 
  of 
  head 
  7.5 
  mm; 
  of 
  abdomen 
  8 
  mm. 
  

  

  Body 
  elongate, 
  slender, 
  nearly 
  smooth 
  ; 
  color 
  brownish 
  black, 
  with 
  

   paler 
  rings 
  on 
  the 
  femora 
  and 
  tibiae, 
  three 
  or 
  four 
  rings 
  on 
  each 
  ; 
  pale 
  

  

  