﻿5l6 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  PCelithemis 
  ornata 
  Rambur 
  

  

  1842 
  Lib 
  el 
  lul 
  a 
  ornata 
  Rambur, 
  Ins. 
  Neur. 
  p. 
  96 
  

  

  1861 
  Diplax 
  ornata 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  182 
  

  

  1861 
  Diplax 
  amanda 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  183 
  

  

  1893 
  Celithemis 
  ornata 
  Calvert, 
  Am. 
  ent. 
  soc. 
  Trans. 
  20: 
  261 
  (description) 
  

  

  Maine 
  to 
  Florida 
  along 
  the 
  coast 
  ; 
  not 
  as 
  yet 
  recorded 
  from 
  this 
  state. 
  

   Nymph 
  unknown. 
  

  

  LEUCORHINIA 
  

  

  A 
  single 
  species, 
  the 
  common 
  L. 
  intacta, 
  has 
  been 
  recorded 
  

   hitherto 
  from 
  this 
  state. 
  A 
  second 
  species 
  is 
  now 
  added, 
  L. 
  g 
  1 
  a 
  c 
  i 
  a 
  1 
  i 
  s 
  , 
  

   which 
  was 
  common 
  at 
  Saranac 
  Inn. 
  I 
  have 
  bred, 
  and 
  describe 
  below 
  

   the 
  nymphs 
  of 
  both 
  these 
  species, 
  as 
  well 
  as 
  the 
  female 
  imago 
  of 
  the 
  

   latter 
  species 
  which 
  has 
  not 
  hitherto 
  been 
  known. 
  

  

  Imagos 
  of 
  this 
  genus 
  flit 
  about 
  the 
  vegetation 
  of 
  marshy 
  shores, 
  or 
  go 
  

   foraging 
  along 
  weedy 
  roadsides 
  near 
  by. 
  Their 
  flight 
  is 
  not 
  long 
  sus- 
  

   tained, 
  consisting 
  mainly 
  of 
  short 
  sweeps 
  from 
  one 
  resting 
  place 
  to 
  another. 
  

   The 
  nymphs 
  clamber 
  among 
  the 
  submerged 
  stems 
  of 
  aquatic 
  plants. 
  

   They 
  are 
  smooth, 
  clean, 
  and 
  generally 
  show 
  a 
  definite 
  and 
  well 
  marked 
  

   color 
  pattern, 
  of 
  brown 
  on 
  a 
  greenish 
  ground, 
  harmonizing 
  well 
  with 
  the 
  

   environment 
  of 
  mixed 
  green 
  and 
  dead 
  stems. 
  They 
  agree 
  in 
  having 
  the 
  

   eyes 
  laterally 
  prominent, 
  but 
  a 
  little 
  less 
  so 
  than 
  in 
  Celithemis, 
  

   lacking 
  the 
  tendency 
  toward 
  the 
  lateral 
  angulation 
  seen 
  in 
  that 
  genus, 
  in 
  

   having 
  a 
  larger 
  number 
  of 
  lateral 
  setae 
  on 
  the 
  labium 
  (lo-ii), 
  in 
  having 
  

   the 
  abdomen 
  a 
  little 
  narrowed 
  beyond 
  the 
  sixth 
  segment, 
  and 
  the 
  dorsal 
  

   hooks 
  on 
  segments 
  5-8 
  sharply 
  bent 
  posteriorly 
  just 
  above 
  their 
  bases, 
  

   and 
  long 
  — 
  as 
  long 
  as 
  their 
  respective 
  segments 
  — 
  and 
  very 
  sharp. 
  

  

  Our 
  two 
  species 
  may 
  be 
  separated 
  by 
  the 
  following 
  keys. 
  

  

  KEY 
  TO 
  SPECIES 
  OF 
  LEUCORHINIA 
  

  

  Imagos 
  

  

  a 
  Inferior 
  appendage 
  of 
  the 
  males 
  bifurcated 
  ; 
  generally, 
  a 
  yellow 
  twin 
  spot 
  on 
  

   the 
  dorsum 
  of 
  the 
  seventh 
  abdominal 
  segment; 
  females 
  with 
  the 
  two 
  lobes 
  

   of 
  the 
  vulvar 
  lamina 
  long 
  and 
  slender, 
  each 
  much 
  longer 
  than 
  wide 
  

  

  intacta 
  

  

  aa 
  loferior 
  abdominal 
  appendage 
  of 
  the 
  male 
  not 
  bifurcated, 
  with 
  only 
  a 
  

  

  shallow 
  angular 
  notch 
  in 
  its 
  end, 
  no 
  twin 
  spot 
  on 
  segment 
  7 
  ; 
  vulvar 
  

  

  lamina 
  of 
  the 
  female 
  with 
  its 
  two 
  lobes 
  little 
  developed, 
  much 
  shorter 
  than 
  

  

  broad 
  glacialis 
  

  

  Nymphs 
  

  

  a 
  Dorsal 
  hook 
  of 
  the 
  eighth 
  abdominal 
  segment 
  directed 
  straight 
  posteriorly 
  

  

  at 
  its 
  apex 
  ; 
  lateral 
  setae 
  10 
  intacta 
  

  

  aa 
  Dorsal 
  hook 
  of 
  the 
  eighth 
  abdominal 
  segment 
  strongly 
  declined 
  at 
  its 
  tip; 
  

   lateral 
  setae 
  11 
  resting 
  on 
  the 
  dorsum 
  of 
  the 
  ninth 
  segment 
  glacialis 
  

  

  