﻿NO. 
  1124. 
  REVISION 
  OF 
  THE 
  MELANOPLI—SCUDDER. 
  97 
  

  

  The 
  early 
  use 
  of 
  the 
  terra 
  Podisma 
  previous 
  to 
  1853 
  and 
  after 
  1829 
  

   (other 
  than 
  given 
  above) 
  also 
  sufficiently 
  confirms 
  the 
  appropriateness 
  

   of 
  reatoriug 
  Podisma 
  for 
  the 
  species 
  now 
  generally 
  included 
  in 
  Pezotettix; 
  

   for 
  Fischer 
  de 
  AValdheim' 
  in 
  1840 
  used 
  it 
  for 
  six 
  species, 
  of 
  which 
  the 
  

   first 
  three 
  belong 
  to 
  Pezotettix 
  of 
  modern 
  writers, 
  the 
  next 
  two 
  to 
  

   Chrysochraon, 
  while 
  the 
  last 
  is 
  not 
  recognizable; 
  von 
  Borck 
  in 
  1818^ 
  

   refers 
  to 
  it 
  pedestris 
  and 
  frigida; 
  and 
  finally 
  H. 
  Fischer 
  himself 
  first 
  

   used 
  it 
  in 
  1819'' 
  for 
  frigida. 
  His 
  reasons 
  later 
  ^ 
  for 
  supplanting 
  Podisma 
  

   by 
  Pezotettix 
  can 
  not 
  be 
  defended. 
  

  

  The 
  type 
  of 
  Podisma 
  is 
  therefore 
  Gryllus 
  pedestris 
  Linnaeus, 
  

  

  This 
  genus 
  is 
  more 
  widely 
  extended 
  than 
  any 
  other 
  of 
  the 
  Melanopli, 
  

   being 
  the 
  only 
  one 
  not 
  confined 
  to 
  America. 
  It 
  is 
  a 
  distinctly 
  boreal 
  

   type 
  and 
  encircles 
  the 
  globe. 
  The 
  species 
  are 
  largely 
  confined 
  to 
  high 
  

   altitudes 
  as 
  well 
  as 
  high 
  latitudes, 
  a 
  number 
  being 
  alpine 
  or 
  subalpine 
  in 
  

   their 
  respective 
  localities. 
  In 
  this 
  country 
  the 
  species 
  are 
  known 
  from 
  

   two 
  widely 
  separated 
  regions; 
  in 
  the 
  west, 
  the 
  Rocky 
  Mountain 
  region 
  

   from 
  Alberta 
  to 
  northern 
  iS'ew 
  Mexico; 
  and 
  in 
  the 
  east 
  from 
  western 
  

   Ontario 
  and 
  ]S^ew 
  York 
  to 
  Maine. 
  In 
  Europe 
  they 
  are 
  largely 
  confined 
  

   to 
  the 
  mountains 
  of 
  southern 
  Europe 
  from 
  the 
  Pyrenees 
  to 
  Mount 
  Par- 
  

   nassus 
  or 
  to 
  Scandinavia: 
  in 
  Asia 
  their 
  distribution 
  is 
  less 
  known, 
  

   but 
  species 
  occur 
  in 
  eastern 
  Siberia 
  and 
  in 
  Japan. 
  

  

  In 
  the 
  following 
  pages 
  I 
  have 
  fully 
  described 
  only 
  the 
  American 
  

   species, 
  which 
  are 
  first 
  treated 
  separately; 
  but 
  I 
  have 
  thought 
  well 
  to 
  

   complete 
  the 
  account 
  of 
  the 
  Melanojdi 
  by 
  including 
  the 
  Old 
  World 
  

   species 
  as 
  lar 
  as 
  possible, 
  figuring 
  their 
  abdominal 
  api^endages, 
  giving 
  

   a 
  separate 
  table 
  for 
  their 
  determination, 
  and 
  adding 
  brief 
  diagnoses 
  of 
  

   two 
  species 
  which 
  are 
  unpublished. 
  Their 
  synonomy 
  and 
  distribution 
  

   are 
  mostly 
  compiled 
  from 
  Brunner's 
  Prodromus 
  Eur. 
  Orthopteren. 
  

  

  ANALYTICAL 
  KEY 
  TO 
  THE 
  AMERICAN' 
  SPECIES 
  OF 
  PODISMA. 
  

  

  A'. 
  Tegniiua 
  wanting; 
  upper 
  valves 
  of 
  ovipositor 
  elougate, 
  straight, 
  only 
  faintly 
  

   falciform 
  apically; 
  liind 
  border 
  of 
  pronotnm 
  trnncate 
  or 
  feebly 
  eniarginate. 
  

   &'. 
  Hind 
  femora 
  almost 
  uniformly 
  green 
  ; 
  furcula 
  of 
  male 
  extending 
  over 
  the 
  su- 
  

   praaual 
  plate 
  by 
  twice 
  the 
  length 
  of 
  the 
  last 
  dorsal 
  segment; 
  cerci 
  relatively 
  

   stout, 
  in 
  the 
  middle 
  distinctly 
  more 
  than 
  half 
  as 
  broad 
  as 
  the 
  base. 
  

  

  1. 
  glacialis 
  (p. 
  98). 
  

   b-. 
  Hind 
  femora 
  conspicuously 
  fasciate 
  with 
  fuscous; 
  furcula 
  of 
  male 
  extending 
  

   over 
  the 
  supraanal 
  plate 
  by 
  not 
  more 
  than 
  the 
  length 
  of 
  the 
  last 
  dorsal 
  segment; 
  

   cerci 
  very 
  slender, 
  in 
  the 
  middle 
  distinctly 
  less 
  than 
  half 
  as 
  broad 
  as 
  the 
  base. 
  

  

  2. 
  raricgata 
  (p. 
  101). 
  

   A-'. 
  Tegmina 
  present, 
  abbreviate; 
  upper 
  valves 
  of 
  ovipositor 
  distinctly 
  falciform 
  

   apically. 
  

  

  hK 
  Hind 
  border 
  of 
  pronotum 
  distinctly 
  augulate; 
  tegmina 
  overlapping, 
  generally 
  

   distinctly 
  longer 
  than 
  the 
  pronotum. 
  

   c'. 
  Tegmina 
  distinctly 
  overlapping, 
  nuich 
  longer 
  than 
  the 
  i)ronotum; 
  male 
  cerci 
  

   short 
  and 
  broad, 
  hardly 
  if 
  at 
  all 
  more 
  than 
  twice 
  as 
  long 
  as 
  the 
  middle 
  breadth; 
  

   subgenital 
  plate 
  as 
  seen 
  from 
  behind 
  more 
  or 
  less 
  broadly 
  truncate. 
  

  

  'Orth. 
  Euss., 
  pp.249-253. 
  nsjahresb. 
  Mannh. 
  ver. 
  nat., 
  p. 
  38. 
  

  

  ^Skand. 
  riitv. 
  ins, 
  nat. 
  hist., 
  pp. 
  87-92. 
  •'Orth. 
  Eur., 
  p. 
  365, 
  note. 
  

  

  Proc. 
  X, 
  M, 
  vol, 
  XX 
  7 
  

  

  