﻿500 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Nymph. 
  Measures 
  in 
  total 
  length 
  26mm; 
  abdomen 
  15 
  mm;;^5^md 
  

   femur 
  7.5 
  mm 
  ; 
  width 
  of 
  head 
  7 
  mm, 
  of 
  abdomen 
  9 
  mm. 
  

  

  Body 
  of 
  the 
  form 
  of 
  C 
  o 
  r 
  d 
  u 
  1 
  i 
  a 
  , 
  or 
  slightly 
  broader, 
  sparsely 
  hairy 
  

   on 
  appendages 
  and 
  margins 
  ; 
  head 
  with 
  hind 
  angles 
  well 
  rounded, 
  the 
  

   eyes 
  moderately 
  prominent 
  ; 
  labium 
  as 
  in 
  C 
  o 
  r 
  d 
  ul 
  i 
  a 
  , 
  but 
  with 
  13 
  or 
  

   14 
  mental 
  setae, 
  of 
  which 
  the 
  fifth 
  or 
  sixth 
  (counting 
  from 
  the 
  side) 
  is 
  

   longest, 
  the 
  four 
  or 
  five 
  internal 
  ones 
  being 
  quite 
  minute 
  ; 
  lateral 
  setae 
  

   seven; 
  teeth 
  low, 
  crenate, 
  each 
  armed 
  with 
  four 
  or 
  five 
  graduated 
  

   spinulfes. 
  

  

  Abdomen 
  oblong, 
  with 
  not 
  very 
  sharp 
  lateral 
  margins, 
  most 
  narrowed 
  

   posteriorly 
  on 
  the 
  ninth 
  segment 
  ; 
  lateral 
  spines 
  on 
  the 
  eighth 
  and 
  ninth 
  

   segments, 
  those 
  of 
  the 
  ninth 
  segment 
  about 
  one 
  fourth 
  as 
  long 
  as 
  the 
  

   body 
  6f 
  the 
  segment; 
  dorsal 
  hooks 
  on 
  segments 
  4 
  to 
  q, 
  small 
  

   and 
  erect 
  points 
  on 
  segments 
  4 
  and 
  5, 
  larger 
  and 
  laterally 
  flattened 
  

   and 
  nearly 
  equal 
  on 
  segments 
  6-9, 
  but 
  without 
  sharp 
  decurved 
  

   apices; 
  ninth 
  segment 
  about 
  half 
  as 
  long 
  on 
  the 
  middorsal 
  as 
  on 
  the 
  mid- 
  

   ventral 
  line, 
  inclosing 
  the 
  annular 
  tenth 
  segment 
  ; 
  lateral 
  appendages 
  

   hardly 
  shorter 
  than 
  the 
  equal 
  lateral 
  and 
  superior 
  appendages. 
  

  

  Somatochlora 
  filosa 
  Hagen 
  

  

  1861 
  Cordulia 
  filosa 
  Hagen, 
  Synopsis 
  Neur. 
  N. 
  Am', 
  p. 
  136 
  

   1893 
  Somatochlora 
  filosa 
  Calvert, 
  Am. 
  ent. 
  [soc. 
  Trans. 
  20:253 
  (descrip- 
  

   tion) 
  

   1900 
  Somatochlora 
  filosa 
  Williamson, 
  Dragon 
  jlies 
  Ind. 
  p. 
  313 
  

  

  Fig. 
  24 
  Somatochlora 
  filosa 
  Hag., 
  end 
  of 
  abdomen 
  ; 
  m 
  and 
  n 
  of 
  male 
  ; 
  o 
  of 
  female 
  

  

  This 
  species 
  is 
  recorded 
  from 
  New 
  Jersey 
  and 
  southward, 
  and 
  is 
  very 
  

   likely 
  to 
  be 
  met 
  with 
  in 
  New 
  York 
  state 
  eventually. 
  

   Nymph 
  unknown. 
  

  

  