﻿528 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  The 
  median 
  labial 
  lobe 
  is 
  very 
  prominent 
  ; 
  the 
  teeth 
  on 
  the 
  edges 
  of 
  

   the 
  lateral 
  lobes 
  are 
  obsolete; 
  the 
  lateral 
  setae 
  are 
  eight, 
  and 
  of 
  these 
  the 
  

   proximal 
  one 
  is 
  a 
  small 
  one; 
  the 
  mental 
  setae 
  are 
  about 
  13, 
  of 
  which 
  the 
  

   eight 
  outermost 
  are 
  a 
  series 
  of 
  larger 
  size. 
  There 
  are 
  no 
  dorsal 
  hooks, 
  

   but 
  there 
  are 
  some 
  coarse 
  hairs 
  on 
  the 
  transverse 
  apical 
  carinae 
  of 
  the 
  

   segments, 
  and 
  there 
  is 
  a 
  long 
  brush 
  of 
  these 
  springing 
  from 
  the 
  apical 
  

   ventral 
  margin 
  of 
  the 
  ninth 
  segment; 
  there 
  are 
  no 
  lateral 
  spines, 
  or 
  the 
  

   merest 
  vestiges 
  of 
  them 
  remain 
  sometimes 
  on 
  the 
  ninth 
  segment: 
  the 
  

   appendages 
  are 
  all 
  decurved, 
  the 
  inferiors 
  most 
  strongly 
  ; 
  the 
  superior 
  is 
  

   a 
  little 
  shorter 
  than 
  the 
  inferiors, 
  a 
  little 
  longer 
  than 
  the 
  laterals; 
  the 
  

   prothoracic 
  spiracles 
  are 
  elevated 
  to 
  the 
  highest 
  point 
  of 
  the 
  body. 
  So 
  

   unique 
  are 
  a 
  number 
  of 
  these 
  characters, 
  there 
  is 
  no 
  confusing 
  this 
  nymph 
  

   with 
  the 
  others 
  of 
  the 
  subfamily. 
  

  

  MICRATHYRIA 
  

  

  A 
  single 
  species 
  of 
  our 
  fauna 
  is 
  referred 
  to 
  this 
  genus. 
  

   Micrathyria 
  berenice 
  Drury 
  

  

  1773 
  Libellula 
  berenice 
  Drury, 
  Illus. 
  exotic 
  ent. 
  v. 
  1, 
  pi. 
  48, 
  fig. 
  3 
  

   1839 
  Lib 
  e 
  Hula 
  berenice 
  Say, 
  Acad. 
  nat. 
  sci. 
  Phil. 
  Jour. 
  8:25 
  

   1861 
  Di 
  pi 
  ax 
  berenice 
  Hagen, 
  Syuopsis 
  Neur. 
  N. 
  Am. 
  p. 
  178 
  

   1867 
  Di 
  pi 
  ax 
  berenice 
  Packard, 
  Am. 
  nat. 
  1 
  : 
  311, 
  pi. 
  9, 
  fig. 
  3 
  and 
  4 
  

   1893 
  Micrathyria 
  berenice 
  Calvert, 
  Am. 
  ent. 
  soc. 
  Trans, 
  20 
  : 
  260 
  (de- 
  

   scription) 
  

   1895-97 
  Mierathyria 
  berenice 
  Galvert, 
  N. 
  Y. 
  eut. 
  soc. 
  Jour. 
  3:47 
  and 
  

  

  5 
  ; 
  94 
  (listed 
  from 
  Thousand 
  Islands, 
  New 
  York 
  and 
  Sheepshead 
  bay, 
  

  

  L.I.) 
  

  

  This 
  is 
  a 
  species 
  I 
  have 
  never 
  seen 
  aUve. 
  It 
  is 
  said 
  to 
  be 
  common 
  

   down 
  the 
  valley 
  of 
  the 
  Hudson. 
  Its 
  nymph 
  is 
  unknown. 
  

  

  LADONA 
  

  

  Of 
  the 
  three 
  forms 
  comprising 
  this 
  genus, 
  originally 
  described 
  as 
  

   distinct 
  species, 
  two 
  probably 
  occur 
  within 
  the 
  limits 
  of 
  New 
  York 
  state. 
  

   In 
  what 
  I 
  have 
  written 
  concerning 
  these 
  hitherto, 
  I 
  have 
  followed 
  with- 
  

   out 
  question 
  the 
  synonymy 
  as 
  given 
  by 
  Hagen 
  and 
  Calvert, 
  according 
  to 
  

   which 
  both 
  deplanata 
  of 
  Rambur 
  and 
  j 
  u 
  1 
  i 
  a 
  of 
  Uhler 
  are 
  but 
  

   varieties 
  of 
  e 
  x 
  u 
  s 
  t 
  a 
  Say, 
  not 
  even 
  bearing 
  a 
  varietal 
  name. 
  A. 
  P. 
  

   Morse 
  has 
  called 
  my 
  attention 
  to 
  some 
  facts 
  which 
  seem 
  to 
  indicate 
  that 
  

   these 
  three 
  may 
  yet 
  have 
  to 
  be 
  considered 
  as 
  distinct 
  species. 
  I 
  may 
  add 
  

   that 
  my 
  breedings 
  have 
  furnished 
  farther 
  facts 
  corroborating 
  this 
  opinion. 
  

  

  Before 
  the 
  " 
  lumping 
  " 
  process 
  began 
  the 
  bibliography 
  of 
  these 
  forms 
  

   was 
  as 
  follows. 
  

  

  Libellula 
  exusta 
  Say, 
  Acad. 
  nat. 
  sci. 
  Phil. 
  Jour. 
  8 
  : 
  29 
  

   1842 
  Libellula 
  deplanata 
  Rambur, 
  Ins. 
  Neur. 
  p. 
  75 
  

   1857 
  Libellula 
  julia 
  Uhler, 
  Acad, 
  nat, 
  sci. 
  Phil. 
  Proo, 
  p. 
  88 
  

  

  