﻿Sl8 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Leucorhinia 
  p^lacialis 
  Hagen 
  

  

  y 
  Plate 
  10. 
  

  

  1890 
  Leucorhinia 
  glacialis 
  Hagen, 
  Am. 
  ent. 
  soc. 
  Trans. 
  17:234, 
  pi 
  

   10, 
  fig. 
  3 
  and 
  14 
  

  

  This 
  species 
  has 
  been 
  known 
  hitherto 
  from 
  a 
  few 
  male 
  specimens 
  col- 
  

   lected 
  at 
  Cape 
  Breton, 
  N. 
  S., 
  London, 
  Ont.; 
  Michipicoten 
  on 
  Lake 
  

   Superior 
  ; 
  Reno, 
  Nev. 
  ; 
  and 
  in 
  the 
  White 
  mountains 
  of 
  New 
  Hampshire. 
  

   It 
  has 
  not 
  been 
  recorded 
  from 
  New 
  York 
  state, 
  but 
  I 
  found 
  it 
  common 
  at 
  

   Saranac 
  Inn. 
  During 
  the 
  first 
  week 
  or 
  two 
  of 
  adult 
  life, 
  before 
  age 
  and 
  

   pruinosity 
  have 
  obscured 
  its 
  remarkably 
  fine 
  coloration, 
  it 
  is 
  a 
  singularly 
  

   beautiful 
  insect. 
  One 
  who 
  sees 
  only 
  preserved 
  specimens 
  would 
  not 
  sus- 
  

   pect 
  this 
  however, 
  for 
  in 
  such, 
  faded' 
  browns 
  have 
  replaced 
  the 
  ruby 
  red 
  

   color 
  of 
  the 
  males 
  and 
  the 
  brilliant 
  yellow 
  of 
  the 
  females. 
  I 
  well 
  remember 
  

   with 
  what 
  delighted 
  surprise 
  I 
  greeted 
  my 
  first 
  specimen. 
  It 
  was 
  a 
  

   young 
  male, 
  with 
  a 
  brilliant 
  red 
  body 
  phalerate 
  with 
  jet 
  black, 
  a 
  flaves- 
  

   cent 
  tinge 
  beyond 
  the 
  basal 
  markings 
  of 
  the 
  wings, 
  a 
  rich 
  red-brown 
  

   stigma, 
  with 
  a 
  touch 
  of 
  yellow 
  on 
  the 
  costa 
  either 
  side 
  of 
  it, 
  and 
  a 
  face 
  

   with 
  the 
  whiteness 
  and 
  subopaqueness 
  of 
  fine 
  china. 
  That 
  specimen 
  

   was 
  captured 
  beside 
  the 
  Inn 
  road 
  in'the 
  last 
  week 
  of 
  June; 
  soon 
  after- 
  

   ward 
  I 
  found 
  plenty 
  of 
  them 
  — 
  females 
  as 
  well 
  — 
  about 
  the 
  bog 
  pond 
  that 
  

   lies 
  near 
  this 
  road 
  south 
  of 
  the 
  station 
  ; 
  they 
  were 
  flying 
  with 
  C 
  o 
  r 
  d 
  u 
  1 
  i 
  a 
  

   shurtleffi, 
  Dorocordulia 
  libera, 
  and 
  L 
  e 
  s 
  t 
  e 
  s 
  eurina 
  

   — 
  a 
  group 
  of 
  rare 
  beauties. 
  

  

  Early 
  in 
  July 
  I 
  found 
  them 
  commonly 
  about 
  the 
  outlet 
  of 
  Little 
  Clear 
  

   pond, 
  and 
  there 
  obtained 
  nymphs 
  (which 
  later 
  were 
  reared), 
  saw 
  the 
  

   females 
  ovipositing 
  and 
  obtained 
  the 
  eggs. 
  

  

  Female 
  imago 
  (hitherto 
  undescribed; 
  pi. 
  lo, 
  fig. 
  3). 
  Length 
  34 
  

   mm 
  ; 
  abdomen 
  23 
  mm; 
  hind 
  wing 
  25 
  mm. 
  

  

  Similar 
  to 
  the 
  male, 
  with 
  only 
  the 
  middle 
  half 
  of 
  the 
  labium 
  black, 
  

   the 
  sides 
  white 
  (I 
  have 
  a 
  small 
  male 
  that 
  is 
  so, 
  also); 
  face 
  opaque 
  

   white. 
  Thorax 
  and 
  basal 
  segments 
  of 
  the 
  abdomen 
  brilHant 
  yellow 
  in 
  

   life, 
  phalerate 
  with 
  black 
  ; 
  the 
  middorsal 
  thoracic 
  stripe 
  of 
  black 
  con- 
  

   stricted 
  above, 
  dilated 
  below 
  ; 
  a 
  short, 
  not 
  very 
  distinct, 
  isolated 
  humeral 
  

   stripe 
  of 
  black; 
  complete 
  stripes 
  that 
  are 
  broad 
  and 
  irregular 
  on 
  the 
  

   humeral 
  and 
  third 
  lateral 
  sutures, 
  and 
  an 
  obHque 
  lateral 
  stripe 
  crossing 
  

   the 
  midlateral 
  suture 
  and 
  joining 
  the 
  humeral 
  stripe; 
  a 
  black 
  mark 
  on 
  

   the 
  mesothoracic 
  spiracle 
  ; 
  dorsal 
  and 
  lateral 
  yellow 
  areas 
  almost 
  envel- 
  

   oping 
  the 
  basal 
  abdominal 
  segments, 
  but 
  isolated 
  on 
  the 
  first 
  and 
  second 
  

   segments, 
  fused 
  on 
  the 
  third, 
  which 
  is 
  all 
  yellow 
  except 
  an 
  apical 
  ring 
  

   and 
  a 
  mark 
  at 
  each 
  side 
  below; 
  there 
  is 
  a 
  yellow 
  dorsal 
  mark 
  on 
  the 
  

   fourth 
  segment, 
  and 
  there 
  are 
  dorsal 
  yellow 
  triangles 
  on 
  segments 
  

   5-7 
  ; 
  there 
  is 
  also 
  a 
  lateral 
  yellow 
  basal 
  triangle 
  on 
  each 
  side 
  of 
  the 
  

   fourth 
  segment. 
  The 
  wings 
  have 
  the 
  basal 
  marking 
  and 
  the 
  yellow 
  

  

  