﻿318 
  PROCEED 
  11^ 
  GS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  Sierra 
  Nevada 
  in 
  central 
  California, 
  and 
  the 
  last 
  in 
  central 
  Mexico. 
  I 
  

   have 
  also 
  in 
  my 
  collection 
  another 
  species 
  (No. 
  351) 
  from 
  Mexico, 
  allied 
  

   to 
  one 
  of 
  the 
  Texan 
  species, 
  bnt 
  of 
  which 
  1 
  know 
  only 
  the 
  female, 
  and 
  

   therefore 
  do 
  not 
  describe. 
  

  

  This 
  series 
  represents 
  to 
  a 
  certain 
  extent, 
  in 
  brachypterons 
  forms, 
  

   the 
  robnstas 
  series 
  of 
  macropterous 
  sj)ecies. 
  

  

  § 
  

  

  loi. 
  MELANOPLUS 
  DUMICOLA. 
  

   (Plate 
  XXI, 
  tig. 
  7.) 
  

  

  Pezotettix 
  iiumicolus 
  Sciipdkr!, 
  Proc. 
  Bost. 
  Soc 
  Nat. 
  Hist., 
  XX 
  (1879), 
  pp. 
  76-77; 
  

   Cent. 
  Orth. 
  (1879), 
  pp. 
  65-66.— 
  Bruner, 
  Rep. 
  U. 
  S. 
  Ent. 
  Comm., 
  Ill 
  (1883), 
  

   p. 
  59. 
  

  

  Of 
  small 
  size, 
  smooth 
  and 
  glistening'. 
  Head 
  not 
  prominent, 
  the 
  ver- 
  

   tex 
  feebly 
  tumid, 
  scarcely 
  elevated 
  above 
  the 
  pronotum, 
  the 
  interspace 
  

   between 
  the 
  eyes 
  very 
  narrow, 
  much 
  less 
  than 
  (male) 
  or 
  scarcely 
  equaling 
  

   (female) 
  the 
  width 
  of 
  the 
  first 
  autennal 
  joint; 
  fastigium 
  steeply 
  declivent, 
  

   shallow, 
  slender, 
  subspatulate 
  with 
  rather 
  coarse 
  bounding 
  walls; 
  

   frontal 
  costa 
  moderate, 
  equal 
  except 
  in 
  being 
  very 
  slightly 
  and 
  roundly 
  

   contracted 
  above, 
  wider 
  than 
  the 
  interspace 
  between 
  the 
  eyes, 
  sulcate 
  

   at 
  and 
  below 
  the 
  ocellus, 
  sparsely 
  punctate; 
  eyes 
  rather 
  large, 
  rather 
  

   prominent 
  esi^ecially 
  in 
  the 
  male, 
  very 
  much 
  longer 
  than 
  the 
  infraocular 
  

   portion 
  of 
  the 
  genae; 
  antennae 
  four 
  -fifths 
  (male) 
  or 
  two-thirds 
  (female) 
  

   as 
  long 
  as 
  the 
  hind 
  femora. 
  Pronotum 
  very 
  simple, 
  uniformly 
  and 
  very 
  

   slightly 
  expanding 
  ])osteriorly, 
  the 
  front 
  border 
  truncate 
  or 
  scarcely 
  

   convex, 
  the 
  hind 
  border 
  slightly 
  and 
  broadly 
  mesially 
  emarginate; 
  lat- 
  

   eral 
  carinae 
  completely 
  obsolete 
  and 
  uniform, 
  the 
  disk 
  passing 
  insensibly 
  

   into 
  the 
  lateral 
  lobes 
  ; 
  median 
  carina 
  faint, 
  very 
  blunt, 
  equal 
  throughout 
  ; 
  

   prozona 
  distinctly 
  (female) 
  or 
  very 
  (male) 
  longitudinal, 
  sparsely 
  and 
  

   rather 
  faintly 
  punctate, 
  the 
  metazona 
  more 
  distinctly 
  and 
  abundantly 
  

   but 
  with 
  minuter 
  puncta. 
  Prosternal 
  spine 
  rather 
  small, 
  erect, 
  conical, 
  

   in 
  the 
  female 
  a 
  little 
  ap]»ressed; 
  interspace 
  between 
  mesosternal 
  lobes 
  

   more 
  than 
  twice 
  as 
  long 
  as 
  broad 
  (male) 
  or 
  quadrate 
  (female). 
  Teginina 
  

   lateral, 
  minute, 
  considerably 
  shorter 
  than 
  the 
  pronotum, 
  bluntly 
  

   rounded 
  apically, 
  the 
  inner 
  margin 
  nearly 
  straight, 
  the 
  costal 
  very 
  con- 
  

   vex, 
  the 
  whole 
  twice 
  as 
  long 
  as 
  broad. 
  Fore 
  and 
  middle 
  femora 
  consid- 
  

   erably 
  tumid 
  in 
  the 
  male. 
  Extremity 
  of 
  male 
  abdomen 
  considerably 
  

   clavate, 
  strongly 
  recurved, 
  the 
  supraanal 
  plate 
  triangular, 
  a 
  very 
  little 
  

   longer 
  than 
  broad, 
  the 
  sides 
  nearly 
  straight, 
  the 
  extreme 
  tip 
  blunt; 
  

   furcula 
  reduced 
  to 
  a 
  pair 
  of 
  broad, 
  lamellate, 
  triangular 
  teeth, 
  their 
  

   angle 
  projecting 
  but 
  little 
  at 
  the 
  middle 
  of 
  either 
  half 
  of 
  the 
  supra- 
  

   aiuil 
  plate; 
  cerci 
  broad, 
  conipressed-laminate, 
  subequal 
  but 
  somewhat 
  

   and 
  broadly 
  constricted 
  iu 
  the 
  middle, 
  straight 
  and 
  directed 
  upward, 
  

   the 
  apical 
  half 
  also 
  incurved, 
  the 
  upex 
  excised 
  and 
  produced 
  a 
  little 
  

   above; 
  subgenital 
  plate 
  quadrate, 
  tumid, 
  the 
  apical 
  margin 
  seuiicircu- 
  

  

  I 
  

  

  