﻿ORTHOPTERA. 
  321 
  

  

  above. 
  The 
  clypeus 
  is 
  very 
  short, 
  the 
  iiostclypeus 
  less 
  than 
  one-half 
  as 
  

   long 
  as 
  the 
  auteclypeus. 
  The 
  labriim 
  is 
  long 
  and 
  narrow. 
  The 
  gular 
  

   region 
  is 
  broad, 
  the 
  gense 
  small. 
  

  

  THE 
  THORAX. 
  

  

  Notum, 
  

  

  Pronotiim. 
  This 
  part 
  is 
  immensely 
  developed, 
  being 
  equal 
  in 
  bulk 
  to 
  

   the 
  rest 
  of 
  the 
  thorax. 
  

  

  Mesonotum. 
  This 
  is 
  remarkably 
  short, 
  not 
  quite 
  so 
  long 
  as 
  broad, 
  and 
  

   about 
  one-half 
  as 
  long 
  as 
  the 
  metanotum. 
  There 
  is 
  no 
  prsescutum. 
  The 
  

   scutum 
  is, 
  along 
  the 
  median 
  line, 
  shorter 
  than 
  the 
  scutelhim, 
  and 
  is 
  

   excavated 
  behind 
  in 
  the 
  middle 
  to 
  receive 
  the 
  scutellum, 
  which 
  is 
  rather 
  

   large 
  and 
  broader 
  than 
  long. 
  There 
  is 
  no 
  ijostscutellum. 
  

  

  'Metanotum. 
  More 
  than 
  twice 
  as 
  long 
  as 
  the 
  mesonotum. 
  The 
  scutum 
  

  

  is 
  as 
  long 
  as 
  broad, 
  with 
  a 
  boss 
  on 
  each 
  side 
  above, 
  and 
  a 
  posterior, 
  

  

  rather 
  flat 
  area, 
  succeeded 
  by 
  the 
  scutellum, 
  which 
  is 
  broader 
  than 
  

  

  long. 
  

  

  Pleurum. 
  

  

  Projpleurum, 
  This 
  is 
  represented 
  by 
  an 
  irregularly 
  triangular 
  scle- 
  

   rite, 
  whose 
  apex 
  below 
  bears 
  a 
  stout, 
  downward-projecting 
  spine. 
  The 
  

   coxa 
  is 
  very 
  thick 
  and 
  rather 
  large, 
  and 
  excavated 
  in 
  front 
  to 
  receive 
  

   the 
  posterior 
  prolongation 
  of 
  the 
  base 
  of 
  the 
  femur, 
  Avhich 
  is 
  remarkably 
  

   short, 
  thick, 
  large, 
  and 
  broad, 
  as 
  is 
  the 
  tibia, 
  this 
  and 
  the 
  tarsi 
  being 
  de- 
  

   scribed 
  by 
  other 
  authors. 
  

  

  Mesopleurum. 
  The 
  episternum 
  and 
  epimerum 
  are 
  moderate 
  in 
  width, 
  

   and 
  oblong 
  5 
  the 
  episternum 
  is 
  broader 
  than 
  the 
  epimerum, 
  and 
  the 
  

   sclerites 
  are 
  placed 
  vertically 
  and 
  not 
  obliquely. 
  

  

  Metapleuriiin. 
  The 
  sclerites 
  are 
  large 
  and 
  broad, 
  the 
  sides 
  of 
  this 
  

   segment 
  being 
  square 
  and 
  vertical, 
  though 
  the 
  sclerites 
  themselves 
  are 
  

   obliquely 
  situated. 
  The 
  episternum 
  is 
  one 
  large 
  piece 
  resting 
  below 
  on 
  

   the 
  sternum; 
  the 
  epimerum 
  is 
  as 
  long 
  as 
  the 
  episternum, 
  but 
  narrower. 
  

   The 
  hinder 
  coxae 
  are 
  less 
  spherical 
  and 
  swollen 
  than 
  the 
  mesocoxse. 
  

  

  Sternum. 
  

  

  The 
  prosternuni 
  is 
  obsolete, 
  being 
  reduced 
  to 
  a 
  narrow 
  membrane 
  

   situated 
  between 
  the 
  coxse, 
  which 
  closely 
  meet. 
  

  

  The 
  mesosternum 
  is 
  very 
  large 
  and 
  broad, 
  with 
  a 
  curvilinear 
  impressed 
  

   line 
  between 
  the 
  coxae. 
  

  

  THE 
  ABDOMEN. 
  

  

  There 
  are 
  ten 
  uromeres 
  ; 
  ten 
  tergites, 
  the 
  tenth 
  rudimentary, 
  triangular, 
  

   short. 
  There 
  are 
  nine 
  arosternites. 
  The 
  pleural 
  ridge 
  is 
  well 
  developed. 
  

   The 
  cercopoda 
  are 
  long 
  and 
  filamental, 
  thick 
  at 
  base, 
  multi 
  articulate. 
  

  

  There 
  are 
  no 
  prothoracic 
  stigmata, 
  but 
  the 
  first 
  pair 
  is 
  situated 
  on 
  the 
  

   back 
  of 
  the 
  mesothorax 
  behind 
  the 
  coxse; 
  and 
  the 
  second 
  pair 
  on 
  the 
  

   metathorax 
  behind 
  the 
  epimera 
  and 
  above 
  the 
  coxae. 
  I 
  can 
  discover 
  

   only 
  seven 
  x^airs 
  of 
  abdominal 
  spiracles. 
  

   21 
  EC 
  

  

  