﻿230 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol. 
  xx. 
  

  

  clavato, 
  upturned, 
  the 
  supraanal 
  plate 
  ratlier 
  long 
  triangular, 
  with 
  

   tolerably 
  straight 
  sides, 
  sliglitly 
  and 
  broadly 
  elevated 
  in 
  the 
  basal 
  half, 
  

   acutangulate 
  apex, 
  the 
  whole 
  apical 
  half 
  at 
  a 
  slightly 
  lower 
  plane 
  than 
  

   the 
  basal, 
  the 
  median 
  sulcus 
  rather 
  broad 
  and 
  distinct, 
  with 
  rather 
  

   sharp 
  walls, 
  terminating 
  with 
  the 
  upper 
  shelf; 
  furcula 
  consisting 
  of 
  a 
  

   l)air 
  of 
  slight, 
  distant, 
  slender 
  denticulations, 
  lying 
  outside 
  the 
  ridges 
  

   of 
  the 
  supraanal 
  plate, 
  much 
  shorter 
  than 
  the 
  last 
  dorsal 
  segment; 
  

   cerci 
  siibeqiial, 
  punctate, 
  compressed 
  laminae, 
  about 
  four 
  times 
  as 
  long 
  

   as 
  broad, 
  feebly 
  and 
  broadly 
  constricted 
  mesially, 
  the 
  apical 
  portion 
  

   scarcely 
  so 
  broad 
  as 
  the 
  base, 
  and 
  gently 
  incurved, 
  somewhat 
  sulcate, 
  

   tlie 
  tip 
  well 
  rounded 
  but 
  subangulate 
  interiorly, 
  reaching 
  the 
  tip 
  of 
  the 
  

   sn[)raanal 
  plate; 
  subgenital 
  plate 
  small, 
  a 
  little 
  broader 
  at 
  base 
  than 
  

   at 
  apex, 
  feebly 
  compressed 
  apically 
  and 
  faintly 
  elevated, 
  the 
  apical 
  

   margin 
  well 
  rounded, 
  entire. 
  

  

  Length 
  of 
  body, 
  male, 
  20 
  mm., 
  female, 
  23 
  mm.; 
  antennae, 
  male 
  and 
  

   female, 
  9 
  mm. 
  ; 
  tegmina, 
  male 
  and 
  female, 
  16 
  mm. 
  ; 
  hind 
  femora, 
  male, 
  

   12 
  mm., 
  female, 
  13.25 
  mm. 
  

  

  Eighteen 
  males, 
  9 
  females. 
  Medicine 
  Hat, 
  Assiniboia, 
  September, 
  

   ( 
  U.S.N. 
  M. 
  — 
  Riley 
  collection 
  : 
  L. 
  Bruner); 
  Montana 
  (L.Bruner); 
  (lordon, 
  

   Sheridan 
  County, 
  Nebraska 
  (U.S.N.M. 
  — 
  Riley 
  collection); 
  Fort 
  Robin- 
  

   son, 
  Dawes 
  County, 
  Nebraska, 
  August 
  21, 
  L. 
  Bruner 
  (same); 
  Custer 
  

   County, 
  Colorado, 
  T. 
  D. 
  A. 
  Cockerell 
  (same). 
  

  

  Colorado 
  and 
  Nebraska 
  specimens 
  appear 
  to 
  have 
  the 
  male 
  cerci 
  

   slightly 
  broader 
  apically 
  than 
  those 
  from 
  farther 
  north 
  and 
  may 
  prove 
  

   distinct. 
  

  

  52. 
  MELANOPLUS 
  PALMERI, 
  new 
  species. 
  

  

  (Plate 
  XV, 
  fig. 
  7.) 
  

  

  Grayish 
  or 
  brownish 
  fuscous, 
  darker 
  above 
  than 
  below. 
  Head 
  not 
  

   prominent, 
  testaceous, 
  sometimes 
  ferrugineo-testaceous, 
  more 
  or 
  less 
  

   flecked 
  with 
  fuscous, 
  which 
  prevails 
  above 
  and 
  appears 
  in 
  a 
  broad 
  post- 
  

   ocular 
  band; 
  vertex 
  gently 
  tumid, 
  slightly 
  elevated 
  above 
  the 
  prono- 
  

   tnm, 
  the 
  interspace 
  between 
  the 
  eyes 
  rather 
  broad, 
  nuich 
  broader 
  than 
  

   (male) 
  or 
  twice 
  as 
  broad 
  as 
  (female) 
  the 
  basal 
  antennal 
  joint; 
  fastigium 
  

   steeply 
  declivent, 
  sulcate 
  throughout; 
  frontal 
  costa 
  rather 
  i)romine!it, 
  

   etpial, 
  as 
  broad 
  as 
  the 
  interspace 
  between 
  the 
  eyes, 
  percurrent, 
  sulcate 
  

   at 
  and 
  below 
  the 
  ocellus, 
  feebly 
  punctate; 
  eyes 
  rather 
  large, 
  moderately 
  

   prominent 
  in 
  the 
  male, 
  distinctly 
  longer 
  than 
  the 
  intraocular 
  portion 
  of 
  

   thegenae; 
  antennae 
  luteous 
  or 
  luteo 
  testaceous, 
  about 
  four-fifths 
  (male) 
  

   or 
  two-thirds 
  (female) 
  as 
  long 
  as 
  the 
  hind 
  femora. 
  Pronotum 
  subequal, 
  

   enlaiging 
  a 
  very 
  little 
  posteriorly, 
  the 
  lower 
  half 
  of 
  the 
  lareral 
  lobes 
  

   cleaner 
  and 
  brighter 
  in 
  color 
  than 
  the 
  rest, 
  the 
  prozona 
  with 
  a 
  more 
  or 
  

   less 
  distinct 
  but 
  sometimes 
  nearly 
  obsolete 
  i)ostocular 
  blackish 
  fuscous 
  

   band; 
  disk 
  passing 
  by 
  a 
  well-rounded 
  angle 
  into 
  the 
  vertical 
  lateral 
  

   lobes, 
  the 
  median 
  carina 
  distinct 
  on 
  the 
  metazona 
  only, 
  almost 
  wholly 
  

   obsolete 
  on 
  the 
  prozona; 
  front 
  margin 
  truncate, 
  hind 
  nuiigin 
  feebly 
  

  

  