﻿194 
  PHOCEEDINGS 
  OF 
  THE 
  XATIOXAL 
  MUSEUM. 
  vol. 
  xx. 
  

  

  outer 
  face 
  largely 
  blackish 
  fuscous, 
  mesially 
  interrupted 
  uarrowly 
  with 
  

   a 
  very 
  oblique 
  luteo-testaceous 
  cloud, 
  giving 
  it 
  a 
  broadly 
  and 
  very 
  

   obliquely 
  bifasciate 
  appearance, 
  intensified 
  by 
  the 
  bifasciatiou 
  of 
  the 
  

   upper 
  surface 
  and 
  upper 
  portion 
  of 
  the 
  inner 
  face; 
  beneath 
  luteo-rufes- 
  

   cent 
  or 
  pale 
  carmine; 
  hind 
  tibiae 
  bright 
  red, 
  or 
  less 
  frequently 
  greenish 
  

   glaucous, 
  with 
  a 
  subpatellar 
  fuscous 
  spot, 
  the 
  spines 
  black 
  except 
  at 
  

   base, 
  ten 
  to 
  twelve 
  in 
  number 
  in 
  the 
  outer 
  series. 
  Extremity 
  of 
  male 
  

   abdomen 
  feebly 
  clavate, 
  a 
  little 
  upturned, 
  the 
  supraanal 
  plate 
  trian- 
  

   gular, 
  acutangulate 
  at 
  tip, 
  the 
  sides 
  full 
  at 
  base, 
  throughout 
  tilted 
  

   upward, 
  the 
  median 
  sulcus 
  percurrent, 
  deep, 
  rather 
  broad, 
  the 
  sharply 
  

   tectate 
  walls 
  fading 
  apically; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  slight 
  and 
  

   delicate, 
  divergent, 
  acuminate 
  fingers, 
  not 
  depressed, 
  rarely 
  reaching 
  a 
  

   third 
  way 
  across 
  the 
  supraanal 
  plate; 
  cerci 
  rather 
  small, 
  hardly 
  more 
  

   than 
  three 
  times 
  as 
  long 
  as 
  broad, 
  tapering 
  gently 
  in 
  the 
  basal 
  half, 
  

   beyond 
  equal, 
  and 
  this 
  portion 
  bent 
  a 
  little 
  inward 
  and 
  feebly 
  sulcate 
  

   externally, 
  the 
  apex 
  well 
  rounded; 
  subgenital 
  plate 
  rather 
  small, 
  broad 
  

   at 
  base, 
  apically 
  as 
  broad 
  as 
  long, 
  the 
  apical 
  margin 
  abruptly 
  and 
  

   slightlj' 
  elevated 
  but 
  not 
  prolonged, 
  a 
  little 
  compressed 
  and 
  notched. 
  

  

  Length 
  of 
  body, 
  male, 
  19.5 
  mm., 
  female, 
  19 
  mm. 
  ; 
  antennae, 
  male, 
  8 
  

   mm., 
  female, 
  6 
  mm.; 
  tegmina, 
  male, 
  13.5 
  mm., 
  female, 
  12.5 
  mm.; 
  hind 
  

   femora, 
  male, 
  10 
  mm., 
  female, 
  10.5 
  mm. 
  

  

  Twenty-eight 
  males, 
  23 
  females. 
  Mountains 
  near 
  Lake 
  Tahoe, 
  Placer 
  

   County, 
  California, 
  September, 
  October, 
  Henshaw, 
  Wheeler's 
  Expe- 
  

   dition, 
  1876; 
  Placer 
  County, 
  California, 
  September 
  (U.S.y.M. 
  — 
  Eiley 
  

   collection) 
  ; 
  Truckee, 
  i!^evada 
  County, 
  California, 
  October 
  10. 
  

  

  31. 
  MELANOPLUS 
  ATER, 
  new 
  species. 
  

   (Plate 
  Xlir, 
  fig. 
  2.) 
  

  

  Very 
  dark 
  brownish 
  fuscous 
  with 
  a 
  feeble 
  ferruginous 
  tinge. 
  Head 
  

   not 
  prominent, 
  dull 
  fusco-olivaceous, 
  delicately 
  blotched 
  with 
  fuscous, 
  

   above 
  wholly 
  fuscous, 
  with 
  a 
  broad, 
  piceous, 
  postocular 
  band 
  ; 
  vertex 
  

   gently 
  tumid, 
  feebly 
  elevated 
  above 
  the 
  pronotum, 
  the 
  interspace 
  

   between 
  the 
  eyes 
  slightly 
  (male) 
  or 
  considerably 
  (female) 
  broader 
  than 
  

   the 
  first 
  antennal 
  joint; 
  fastigium 
  very 
  declivent, 
  rather 
  (female) 
  or 
  

   very 
  (male) 
  sulcate 
  throughout; 
  frontal 
  costa 
  hardly 
  i^ercurrent, 
  espe- 
  

   cially 
  in 
  the 
  male, 
  a 
  little 
  contracted 
  above, 
  below 
  broader 
  than 
  (male) 
  

   or 
  fully 
  as 
  broad 
  as 
  (female) 
  the 
  interspace 
  between 
  the 
  eyes, 
  shallowly 
  

   sulcate 
  at 
  and, 
  in 
  the 
  male, 
  below 
  the 
  ocellus, 
  punctate 
  throughout; 
  

   eyes 
  moderately 
  large, 
  not 
  very 
  prominent, 
  distinctly 
  longer 
  than 
  the 
  

   infraocular 
  portion 
  of 
  the 
  genae; 
  antennae 
  rufotestaceous, 
  in 
  the 
  male 
  

   about 
  two-thirds 
  as 
  long 
  as 
  the 
  hind 
  femora. 
  Pronotum 
  rather 
  short, 
  

   feebly 
  expanding 
  posteriorly, 
  the 
  lower 
  part 
  of 
  the 
  lateral 
  lobes 
  more 
  

   or 
  less 
  tinged 
  with 
  luteous, 
  the 
  upper 
  half 
  of 
  the 
  prozona 
  with 
  an 
  

   obscure 
  fusco-pieeous 
  or 
  fuscous 
  band, 
  the 
  disk 
  nearly 
  plane 
  but 
  

   slightly 
  tectate 
  on 
  the 
  prozona, 
  the 
  median 
  carina 
  percurrent 
  but 
  

  

  