﻿AQUATIC 
  INSECTS 
  IN 
  THE 
  ADIRONDACKS 
  509 
  

  

  / 
  The 
  10th. 
  abdominal 
  segment 
  with 
  suhcarinate 
  lateral 
  margins; 
  

  

  appendages 
  very 
  long; 
  lateral 
  setae 
  0-3 
  Lad 
  on 
  a 
  

  

  ff 
  The 
  10th 
  abdominal 
  segment 
  shorter, 
  cylindric 
  ; 
  appendages 
  shorter 
  ; 
  

   lateral 
  setae 
  5-10 
  

   g 
  Head 
  a 
  little 
  narrowed 
  behind 
  the 
  eyes 
  ; 
  front 
  border 
  of 
  the 
  

  

  median 
  lobe 
  of 
  the 
  labium 
  entire 
  Libellula 
  

  

  gg 
  Head 
  not 
  narrowed 
  behind 
  the 
  eyes 
  to 
  the 
  hind 
  angles 
  j 
  front 
  

  

  border 
  of 
  the 
  median 
  labial 
  lobe 
  crenulate 
  Plathemis 
  

  

  'h'h 
  Basal 
  segment 
  of 
  the 
  hind 
  tarsus 
  half 
  as 
  long 
  as 
  the 
  second 
  segment 
  ; 
  lateral 
  

  

  appendages 
  of 
  the 
  abdomen 
  at 
  least 
  three 
  fourths 
  as 
  long 
  as 
  the 
  inferiors 
  \ 
  

  

  lateral 
  setae 
  10 
  or 
  more; 
  superior 
  appendage 
  of 
  the 
  abdomen 
  suddenly 
  

  

  contracted 
  at 
  its 
  basal 
  third, 
  the 
  dorsal 
  two 
  thirds 
  forming 
  a 
  long 
  slender 
  

  

  point 
  

  

  c 
  Movable 
  hook 
  of 
  labium 
  long 
  and 
  slender, 
  setiform 
  ; 
  teeth 
  mUch 
  broader 
  

  

  than 
  high; 
  spines 
  of 
  the 
  eighth 
  segment 
  one 
  half 
  longer 
  than 
  the 
  ninth 
  

  

  segment; 
  superior 
  abdominal 
  appendage 
  shorter 
  than 
  the 
  inferiors 
  

  

  Tr 
  amea 
  

  

  <cc' 
  Movable 
  hook 
  of 
  the 
  labium 
  short, 
  hardly 
  longer 
  than 
  the 
  teeth 
  ; 
  teeth 
  

  

  higher 
  than 
  broad; 
  spines 
  of 
  the 
  eighth 
  segment 
  as 
  long 
  as 
  the 
  ninth 
  

  

  segment 
  ; 
  superior 
  appendage 
  equaling 
  the 
  inferiors 
  Pautala 
  

  

  NANNOTHEMIS 
  

  

  There 
  is 
  a 
  single 
  species 
  occurring 
  within 
  the 
  state. 
  

   Nannothemis 
  bella 
  Uhler 
  

  

  1857 
  Nan 
  no 
  phy 
  a 
  bella 
  Uhler, 
  Acad. 
  nat. 
  sci. 
  Phil. 
  Proc. 
  p. 
  87 
  

  

  1861 
  Nannophya 
  bella 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am. 
  p. 
  186 
  

  

  1867 
  Nann 
  oph 
  y 
  a 
  bella 
  Packard, 
  Am. 
  nat. 
  1:311, 
  pi. 
  9, 
  fig. 
  6 
  

  

  1893 
  Nannothemis 
  bella 
  Calvert, 
  Am. 
  eut. 
  soc. 
  Trans. 
  20:260 
  (description) 
  

  

  1895 
  Nannothemis 
  bella 
  Calvert, 
  N. 
  Y. 
  ent. 
  soc. 
  Jour. 
  3 
  : 
  48 
  (listed 
  from 
  

  

  Westchester 
  co. 
  and 
  New 
  York) 
  

   1900 
  Nannothem 
  is 
  bella 
  Williamson, 
  Dragon 
  flies 
  Ind. 
  p. 
  327 
  

  

  This 
  is 
  apparently 
  a 
  somewhat 
  rare 
  species. 
  I 
  have 
  not 
  seen 
  it 
  alive. 
  

   It 
  is 
  known 
  to 
  be 
  distributed 
  from 
  Quebec 
  and 
  Indiana 
  to 
  Florida. 
  

   •Since 
  the 
  foregoing 
  key 
  was 
  prepared 
  its 
  nymph 
  has 
  been 
  discovered 
  by 
  

   Mr 
  R. 
  Weith 
  near 
  Elkhart 
  Ind. 
  and 
  he 
  has 
  published 
  some 
  notes 
  on 
  the 
  

   life 
  history 
  of 
  the 
  species 
  and 
  I 
  have 
  described 
  the 
  nymph 
  (Can. 
  ent. 
  

   1901. 
  33 
  •• 
  252-255). 
  Mr 
  Weith's 
  notes 
  are 
  abstracted 
  below, 
  and 
  my 
  

   >own 
  description 
  and 
  figure 
  are 
  appended. 
  

  

  This 
  species 
  occurs 
  in 
  very 
  restricted 
  areas 
  (50 
  yards 
  in 
  length 
  by 
  

   25 
  yards 
  in 
  width 
  from 
  margin 
  of 
  the 
  lake) 
  in 
  two 
  places 
  near 
  Elkhart 
  

   Ind. 
  Unlike 
  most 
  other 
  Odonata, 
  the 
  images 
  do 
  not 
  fly 
  higher 
  than 
  a 
  

   few 
  feet 
  above 
  the 
  ground, 
  preferring 
  to 
  alight 
  on 
  marsh 
  grasses 
  and 
  

   bask 
  in 
  the 
  sunshine, 
  where 
  numerous 
  small 
  Diptera 
  suitable 
  for 
  food 
  

  

  