﻿BEnSION 
  OF 
  THE 
  MELANOPLI—SCUDDJiB. 
  H 
  

  

  A-. 
  Lateral 
  margins 
  of 
  subgenital 
  plate 
  of 
  male 
  suddenly 
  ampliate 
  to 
  a 
  considerable 
  

   degree 
  at 
  the 
  base; 
  or 
  if 
  not 
  to 
  a 
  consideral)le 
  degree, 
  then 
  the 
  entire 
  margin 
  rather 
  

   strongly 
  convex 
  or 
  sinuate. 
  

  

  ¥. 
  Subgenital 
  plate 
  of 
  male 
  furnished 
  Avith 
  a 
  distinct 
  subapical 
  tubercle 
  (i. 
  e. 
  one 
  

  

  in 
  which 
  the 
  apical 
  margin 
  does 
  not 
  pass 
  through 
  and 
  form 
  a 
  part 
  of 
  the 
  summit 
  

  

  of 
  the 
  tubercle, 
  but 
  where 
  it 
  is 
  distinctly 
  separated 
  from 
  that 
  summit), 
  but 
  not 
  

  

  otherwise 
  tumescent.' 
  

  

  c'. 
  Median 
  carina 
  of 
  pronotum 
  well 
  developed 
  and 
  equally 
  developed 
  throuo-h- 
  

  

  out, 
  accompanied 
  on 
  the 
  front 
  of 
  the 
  prozoua 
  by 
  distinct 
  lateral 
  carinae; 
  pro 
  

  

  sternal 
  spine 
  sharply 
  acuminate; 
  tubercle 
  of 
  subgenital 
  plate 
  directed 
  wholly 
  

  

  backward, 
  occupying 
  the 
  middle 
  of 
  the 
  terminal 
  portion 
  of 
  the 
  plate; 
  furcula 
  

  

  distinctly 
  developed 
  16. 
  Eofeltix 
  {-p.tiS). 
  

  

  C-, 
  Median 
  carina 
  of 
  pronotum 
  feel)ly 
  developed 
  and 
  generally 
  much 
  more 
  feebly 
  

   on 
  the 
  prozona 
  than 
  on 
  the 
  nietazona, 
  accompanied 
  by 
  no 
  lateral 
  carinae 
  what- 
  

   ever; 
  prosternal 
  spine 
  bluntly 
  acuminate; 
  tubercle 
  of 
  subgenital 
  plate 
  directed 
  

   upward 
  or 
  upward 
  and 
  backward, 
  occupying 
  the 
  upper 
  extremity 
  of 
  the 
  ter- 
  

   minal 
  portion 
  of 
  the 
  plate. 
  

  

  (/'. 
  Body 
  relatively 
  slender 
  and 
  compressed, 
  not 
  much 
  enlarged 
  at 
  the 
  meta- 
  

   thorax, 
  particularly 
  in 
  the 
  male; 
  disk 
  of 
  the 
  jironotum 
  tectiform,"^ 
  the 
  prozona 
  

   not 
  distinguished 
  from 
  the 
  metazona 
  either 
  by 
  its 
  plane 
  or 
  by 
  any 
  lack 
  of 
  a 
  

   median 
  carina, 
  which 
  latter 
  is 
  generally 
  marked 
  in 
  color; 
  pronotum 
  fully 
  half 
  

   as 
  long 
  again 
  as 
  broad; 
  hind 
  femora 
  long 
  and 
  slender; 
  apical 
  tubercle 
  of 
  male 
  

   abdomen 
  prominent; 
  furcula 
  present 
  as 
  distinctly 
  projecting 
  lolics; 
  terminal 
  

   segments 
  of 
  female 
  abdomen 
  not 
  abbreviated, 
  the 
  ovipositor 
  fully 
  exserted. 
  

  

  17. 
  IIes2)ero1ctiix 
  {yi.oo). 
  

   d'. 
  Body 
  relatively 
  short 
  and 
  stout, 
  considerably 
  enlarged 
  at 
  the 
  metathorax 
  

   even 
  in 
  the 
  male; 
  disk 
  of 
  pronotum 
  gently 
  convex 
  transversely, 
  the 
  prozona 
  

   slightly 
  and 
  independently 
  tumid 
  with 
  no 
  median 
  carina, 
  thus 
  distinguishing 
  

   it 
  from 
  the 
  metazona; 
  ' 
  hind 
  femora 
  relatively 
  short 
  and 
  stout; 
  apical 
  tubercle 
  

   of 
  male 
  abdomen 
  not 
  very 
  in'ominent; 
  furcula 
  scai'cely 
  or 
  not 
  apparent; 
  termi- 
  

   nal 
  segments 
  of 
  female 
  abdomen 
  abbreviated, 
  the 
  ovipositor 
  only 
  partially 
  

  

  exserted 
  18. 
  Aeoloplua 
  (p. 
  68). 
  

  

  b'. 
  Subgenital 
  plate 
  of 
  male 
  with 
  no 
  distinct 
  subapical 
  tubercle, 
  but 
  often 
  apically 
  

   prolonged 
  or 
  tumescent.* 
  

  

  c'. 
  Meso- 
  and 
  metastethia 
  together, 
  in 
  both 
  sexes, 
  no 
  longer 
  or 
  scarcely 
  longer 
  

   than 
  broad; 
  nietastethium 
  narrowing 
  but 
  little 
  posteriorly, 
  so 
  that 
  the 
  portion 
  

   behind 
  the 
  metasternal 
  lobes 
  is 
  but 
  little 
  narrower 
  than 
  the 
  rest, 
  rarely 
  (in 
  the 
  

   male) 
  less 
  than 
  three-fourths 
  its 
  width 
  ; 
  cerci 
  of 
  male 
  very 
  simple, 
  subconical, 
  

  

  straight; 
  ovipositor 
  half 
  concealed 
  19. 
  Braiijiiotes 
  (p. 
  80). 
  

  

  C-. 
  Meso- 
  and 
  metastethia 
  together, 
  at 
  least 
  in 
  the 
  male 
  and 
  nearly 
  always 
  in 
  

   both 
  sexes, 
  distinctly 
  longer 
  than 
  the 
  width 
  of 
  the 
  metastethium; 
  the 
  latter 
  

   rapidly 
  narrowing 
  posteriorly, 
  so 
  that 
  the 
  portion 
  behind 
  the 
  metasternal 
  lobes 
  

   is 
  not, 
  or 
  is 
  hardly 
  more 
  than, 
  one-half 
  the 
  greatest 
  width 
  of 
  the 
  metastethium; 
  

   cerci 
  of 
  male 
  variable; 
  ovipositor 
  generally 
  fully 
  exserted. 
  

   d^. 
  Interspace 
  betAveeu 
  mesosternal 
  lobes 
  of 
  male 
  distinctly 
  transverse,^ 
  as 
  

  

  ' 
  See 
  note 
  under 
  alternate 
  category. 
  

  

  -This 
  feature 
  is 
  not 
  so 
  apparent 
  in 
  the 
  first 
  three 
  species 
  of 
  Resperotettix 
  as 
  in 
  the 
  

   others. 
  

  

  3 
  This 
  feature 
  is 
  less 
  nuirked 
  in 
  Ae. 
  tenuipennis 
  and 
  Ae. 
  elegans 
  than 
  in 
  the 
  others. 
  

  

  ■•There 
  is 
  a 
  minute 
  subapical 
  tubercle 
  in 
  some 
  species 
  of 
  the 
  flabellifer 
  series 
  of 
  

   Melanoplns, 
  but 
  in 
  these 
  the 
  male 
  cerci 
  are 
  exceptionally 
  broad 
  and 
  tlabellate, 
  while 
  

   in 
  the 
  species 
  of 
  the 
  alternate 
  category 
  ( 
  J'^ 
  ¥) 
  the 
  cerci 
  are 
  very 
  slender 
  and 
  tapering. 
  

  

  ■'■lu 
  many 
  cases 
  the 
  interspace 
  is 
  truncato-cuneiform 
  or 
  broadly 
  clep?ydral, 
  in 
  

   which 
  cases 
  the 
  breadth 
  is 
  to 
  be 
  measured 
  in 
  the 
  middle. 
  In 
  a 
  single 
  species 
  of 
  

   Podisma, 
  P. 
  dairisama, 
  the 
  interspace 
  is 
  slightly 
  longitudinal. 
  

  

  