﻿174 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  mm., 
  female, 
  6.5 
  mm.; 
  tegmiua, 
  male, 
  13 
  mm., 
  female, 
  13.5 
  mm.; 
  liind 
  

   femora, 
  male, 
  10 
  mm., 
  female, 
  11.5 
  mm. 
  

  

  Fifteen 
  males, 
  23 
  females. 
  White 
  Kiver, 
  Eio 
  Blanco 
  County, 
  Colo- 
  

   rado, 
  July 
  24-August 
  14; 
  Yellowstone, 
  Montana, 
  August 
  (U.S.Isr.M. 
  — 
  

   Kiley 
  collection; 
  L. 
  Bruner); 
  Yellowstone 
  National 
  Park, 
  September 
  

   6-12; 
  Salmon 
  City, 
  Lemhi 
  County, 
  Idaho, 
  August 
  (U.S.N.M. 
  — 
  

   Eiley 
  collection); 
  Washington, 
  Morrison 
  (same.) 
  

  

  Mr. 
  Bruner, 
  in 
  an 
  unpublished 
  account 
  of 
  this 
  species 
  kindly 
  placed 
  

   in 
  my 
  hands, 
  says 
  that 
  the 
  point 
  in 
  Montana 
  where 
  this 
  species 
  was 
  

   taken 
  is 
  in 
  the 
  Yellowstone 
  Valley 
  above 
  the 
  mouth 
  of 
  the 
  Big 
  Horn 
  

   Eiver; 
  and 
  he 
  gives 
  the 
  following 
  points 
  of 
  difference 
  between 
  this 
  

   species 
  and 
  M. 
  atlanis: 
  

  

  In 
  intermedius 
  the 
  entire 
  body 
  is 
  more 
  or 
  less 
  covered 
  with 
  rather 
  long 
  fine 
  hairs, 
  

   the 
  thorax 
  is 
  much 
  longer 
  than 
  in 
  atlanis 
  — 
  throwing 
  the 
  base 
  of 
  the 
  posterior 
  femora 
  

   considerably 
  back 
  of 
  the 
  middle 
  — 
  and 
  in 
  this 
  respect 
  resembling 
  Pezotettix 
  \_Melano- 
  

   pJus] 
  washin(itoriia7iiis 
  Bruner. 
  The 
  male 
  cerci 
  are 
  longer 
  and 
  narrower 
  than 
  in 
  

   atlanis, 
  and 
  are 
  curved 
  slightly 
  inward 
  and 
  upward 
  on 
  the 
  apical 
  half; 
  they 
  are 
  also 
  

   shallowly 
  grooved 
  from 
  the 
  outside. 
  The 
  last 
  ventral 
  segment 
  f 
  subgenital 
  plate] 
  of 
  

   the 
  male 
  .abdomen 
  is 
  a 
  little 
  sliortcr 
  than 
  in 
  that 
  species, 
  and 
  the 
  prosternal 
  spiueis 
  

   also 
  much 
  hmger, 
  stouter, 
  and 
  more 
  bluntly 
  pointed 
  than 
  there. 
  The 
  general 
  color- 
  

   izatiou 
  is 
  much 
  the 
  same 
  as 
  in 
  atlanis 
  but 
  darker 
  — 
  being 
  dull 
  brown 
  and 
  gray 
  above 
  

   and 
  «liugy 
  beneath 
  ; 
  there 
  are 
  no 
  well-defined 
  bands 
  upon 
  the 
  posterior 
  femora, 
  and 
  

   the 
  tibiae 
  are 
  dull 
  glaucous, 
  more 
  or 
  less 
  tinged 
  with 
  brown, 
  especially 
  on 
  the 
  basal 
  

   third 
  and 
  near 
  the 
  apex. 
  

  

  It 
  differs 
  from 
  M. 
  atlanis, 
  to 
  which 
  it 
  is 
  most 
  nearly 
  allied, 
  in 
  the 
  

   longer 
  male 
  antennae, 
  the 
  Aveaker 
  median 
  carina 
  of 
  the 
  i)ronotum, 
  the 
  

   more 
  heavily 
  marked 
  hind 
  femora, 
  and 
  its 
  smaller 
  and 
  slenderer 
  form. 
  

  

  24. 
  MELANOPLUS 
  BILITURATUS. 
  

   (Plate 
  XII, 
  fig. 
  5.) 
  

   Coloptcnns 
  hilituraius 
  Walker, 
  Cat. 
  Derm. 
  Salt. 
  Brit. 
  Mus., 
  lY 
  (1870), 
  p. 
  679. 
  — 
  

  

  Thomas, 
  Rep. 
  U. 
  S. 
  Geol. 
  Surv. 
  Terr., 
  V 
  (1873), 
  p. 
  160; 
  Rep. 
  U. 
  S. 
  Ent. 
  

  

  Comm., 
  I 
  (1878), 
  p. 
  43.— 
  Packard, 
  Ibid., 
  I 
  (1878) 
  p. 
  [143].— 
  Scudder, 
  Proc. 
  

  

  Bost. 
  Soc. 
  Nat. 
  Hist., 
  XIX 
  (1878), 
  p. 
  289; 
  Ent. 
  Notes, 
  VI 
  (1878), 
  p. 
  48. 
  

   2Ielanoplus 
  bilituratus 
  Caulfield 
  (pars), 
  Rep. 
  Ent. 
  Soc. 
  Ont., 
  XVIII 
  (1886), 
  p. 
  71. 
  

   Calopteniis 
  (Mclanojilus) 
  bilituratus 
  Caitlfield 
  (pars). 
  Can. 
  Rec. 
  Sc, 
  II 
  (1887), 
  p. 
  

  

  401; 
  (pars), 
  Can. 
  Orth. 
  (1887), 
  p. 
  13. 
  

   f 
  Melanoplus 
  scriptus 
  Cockerell, 
  Trans. 
  Am. 
  Ent. 
  Soc, 
  XX 
  (1894), 
  p. 
  337. 
  

   [Some 
  of 
  the 
  synonymy 
  given 
  under 
  M. 
  atlanis 
  almost 
  certainly 
  belongs 
  here.] 
  

  

  A 
  little 
  above 
  the 
  medium 
  size, 
  rather 
  robust, 
  griseo-fuscous. 
  Head 
  

   a 
  little 
  prominent, 
  fusco-testaceous 
  or 
  fusco-plumbeous, 
  generally 
  more 
  

   or 
  less 
  infuscated 
  above 
  in 
  longitudinal 
  streaks 
  and 
  Avith 
  a 
  postocular 
  

   piceous 
  band; 
  vertex 
  somewhat 
  tumid, 
  a 
  little 
  elevated 
  above 
  the 
  pro- 
  

   notum, 
  the 
  interspace 
  between 
  the 
  eyes 
  half 
  as 
  broad 
  again 
  as 
  the 
  first 
  

   antennal 
  joint, 
  or 
  sliglitly 
  broader 
  than 
  that 
  in 
  the 
  female; 
  fiistigium 
  

   steei)ly 
  declivent, 
  sulcate 
  throughout, 
  more 
  deeply 
  in 
  the 
  male 
  than 
  in 
  

   the 
  female; 
  frontal 
  costa 
  failing 
  to 
  reach 
  the 
  clypeus, 
  slightly 
  narrowed 
  

   above 
  but 
  fully 
  as 
  broad 
  as 
  the 
  interspace 
  between 
  the 
  eyes, 
  feebly 
  sul- 
  

   cate 
  at 
  and 
  below 
  the 
  ocellus, 
  feebly 
  and 
  more 
  or 
  less 
  biseriately 
  punc- 
  

   tate 
  throughout; 
  eyes 
  pretty 
  large, 
  rather 
  prominent, 
  distinctly 
  longer 
  

  

  