﻿590 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  EXPLANATION 
  OF 
  PLATES 
  

  

  PLATE 
  1 
  

  

  Outlet 
  of 
  Little 
  Clear 
  pond 
  ; 
  view, 
  looking 
  northward 
  from 
  the 
  railroad. 
  

  

  Photo 
  hy 
  J. 
  G. 
  Needham 
  

  

  PLATE 
  2 
  

  

  Little 
  Clear 
  pond 
  ; 
  view 
  from 
  the 
  outlet, 
  looking 
  toward 
  Green 
  hill 
  : 
  St 
  Regis 
  

   mountain 
  io 
  the 
  distance. 
  Photo 
  by 
  J. 
  G. 
  Needham 
  

  

  PLATE 
  3 
  

  

  Little 
  Clear 
  creek 
  on 
  the 
  grounds 
  of 
  the 
  Adirondack 
  hatchery; 
  looking 
  down 
  

   stream 
  from 
  the 
  railroad. 
  Photo 
  by 
  C. 
  Betten 
  

  

  PLATE 
  4 
  

   Little 
  Clear 
  creek 
  just 
  below 
  the 
  hatchery. 
  Photo 
  by 
  K. 
  C. 
  Spears 
  

  

  PLATE 
  5 
  

  

  Little 
  Clear 
  creek 
  at 
  the 
  edge 
  of 
  the 
  woods 
  below 
  the 
  hatchery; 
  cages, 
  nets 
  

  

  and 
  trap 
  lantern. 
  From 
  the 
  bare 
  strip 
  partly 
  occupied 
  by 
  a 
  single 
  screen 
  cage 
  

  

  in 
  the 
  foreground 
  the 
  first 
  quantitative 
  study 
  detailed 
  in 
  part 
  2 
  was 
  made. 
  

  

  Photo 
  by 
  J. 
  G. 
  Needham 
  

  

  PLATE 
  6 
  

  

  Little 
  Clear 
  creek 
  on 
  the 
  hatchery 
  grounds, 
  looking 
  toward 
  the 
  railroad. 
  

   Prom 
  the 
  boarded 
  bank 
  of 
  the 
  pool 
  in 
  the 
  foreground 
  the 
  dragonfly 
  exuviae 
  

   were 
  collected 
  for 
  the 
  count 
  recorded 
  in 
  part 
  2. 
  Photo 
  by 
  J. 
  G. 
  Needham 
  

  

  PLATE 
  7 
  

   View 
  across 
  Little 
  Bog 
  pond, 
  from 
  the 
  ''carry 
  ". 
  Photo 
  by 
  J. 
  G. 
  Needham 
  

  

  PLATE 
  8 
  

  

  Shore 
  of 
  Little 
  Bog 
  pond. 
  Photo 
  by 
  C. 
  Betten 
  

  

  PLATE 
  9 
  

  

  Bur 
  reed 
  (Sparganium) 
  with 
  long-horned 
  leaf 
  beetles 
  (Donacia 
  

   emarginata 
  Kirbyj. 
  a 
  summit 
  of 
  the 
  plant, 
  with 
  beetle 
  on 
  the 
  leaf 
  

   (greatly 
  reduced); 
  & 
  roots 
  as 
  withdrawn 
  from 
  the 
  water, 
  with 
  larval 
  and 
  pupal 
  

   cases 
  of 
  the 
  beetle 
  attached 
  (slightly 
  reduced). 
  Photos 
  by 
  J. 
  G. 
  Needham 
  

  

  PLATE 
  10 
  

   Fig. 
  Leucorhinia 
  glacialis 
  Hagen 
  

  

  1 
  Two 
  nymphs 
  on 
  the 
  bottom 
  of 
  the 
  pond 
  

  

  2 
  The 
  empty 
  nymph 
  skin, 
  left 
  clinging 
  to 
  a 
  branch 
  after 
  transformation 
  

  

  3 
  The 
  female 
  imago 
  

  

  4, 
  5 
  Dorsal 
  and 
  lateral 
  views 
  of 
  the 
  male 
  imago 
  

  

  