﻿326 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx. 
  

  

  io6. 
  MELANOPLUS 
  PLEBEJUS. 
  

   (Plate 
  XXII, 
  fig. 
  2.) 
  

  

  Pezoieiiix 
  plehejtis 
  Stal, 
  Bill. 
  K. 
  Sv. 
  Vet.-Akad. 
  Handl., 
  V, 
  No. 
  9 
  (1878), 
  p. 
  12. 
  

   PezoteUix 
  pupaefonnis 
  .Scudoer!, 
  Proc. 
  Bost. 
  Soc. 
  Nat. 
  Hist., 
  XX, 
  (1879), 
  pp. 
  

  

  83-84; 
  Cent. 
  Orth. 
  (1879), 
  pp. 
  72-73.— 
  Brunek, 
  Rep. 
  U. 
  S. 
  Ent. 
  Comm., 
  Ill 
  

  

  (1883), 
  p. 
  59. 
  

  

  Of 
  medium 
  or 
  slightly 
  above 
  medium 
  size. 
  Head 
  not 
  prominent, 
  the 
  

   vertex 
  feebly 
  tumid, 
  scarcely 
  elevated 
  above 
  the 
  pronotum, 
  the 
  inter- 
  

   space 
  between 
  the 
  eyes 
  half 
  as 
  broad 
  again 
  (male) 
  or 
  twice 
  as 
  broad 
  

   (female) 
  as 
  the 
  first 
  antennal 
  joint; 
  fastigium 
  rather 
  steeply 
  declivent, 
  

   broad, 
  shallow, 
  enlarging 
  slightly 
  in 
  front, 
  the 
  bounding 
  walls 
  low 
  aud 
  

   rounded; 
  frontal 
  costa 
  moderate, 
  equal, 
  as 
  broad 
  as 
  (male) 
  or 
  slightly 
  

   narrower 
  than 
  (female) 
  the 
  interspace 
  between 
  the 
  eyes, 
  Hat, 
  sunken 
  a 
  

   little 
  at 
  the 
  ocellus, 
  and 
  in 
  the 
  female 
  sulcate 
  below 
  it, 
  biseriately 
  

   punctate 
  above; 
  eyes 
  large, 
  rather 
  prominent, 
  very 
  much 
  longer, 
  espe- 
  

   cially 
  in 
  the 
  male, 
  than 
  the 
  infraocular 
  portion 
  of 
  the 
  genae; 
  antennae 
  

   fully 
  two-thirds 
  (male) 
  or 
  a 
  little 
  more 
  than 
  one-half 
  (female) 
  as 
  long 
  as 
  

   the 
  hind 
  femora. 
  Pronotum 
  simple, 
  equal, 
  the 
  front 
  margin 
  a 
  little 
  full, 
  

   the 
  hind 
  margin 
  gently 
  angulated; 
  median 
  carina 
  distinct 
  though 
  

   rather 
  slight, 
  equal; 
  lateral 
  earinae 
  rounded 
  off; 
  prozona 
  faintly 
  and 
  

   distantly, 
  metazona 
  abundantly 
  but 
  not 
  deeply 
  punctate; 
  prozona 
  dis- 
  

   tinctly 
  longitudinal 
  and 
  similar 
  in 
  the 
  two 
  sexes, 
  fully 
  half 
  as 
  loug 
  

   again 
  as 
  the 
  metazona. 
  Prosternal 
  spine 
  large, 
  long, 
  subcylindrical, 
  

   blunt, 
  a 
  little 
  retrorse; 
  interspace 
  between 
  mesosternal 
  lobes 
  three 
  times 
  

   (male) 
  or 
  one 
  and 
  a 
  half, 
  rarely 
  two, 
  times 
  -(female) 
  as 
  long 
  as 
  broad. 
  

   Tegmina 
  abbreviate, 
  overlapping, 
  obovate, 
  about 
  as 
  long 
  as 
  the 
  prono- 
  

   tum, 
  less 
  than 
  twice 
  as 
  long 
  as 
  broad, 
  the 
  curves 
  of 
  the 
  costal 
  and 
  inner 
  

   margins 
  similar, 
  the 
  tip 
  acutangulate. 
  Male 
  abdomen 
  long 
  aud 
  slender, 
  

   the 
  extremity 
  clavate, 
  somewhat 
  recurved, 
  the 
  supraanal 
  plate 
  trian- 
  

   gular, 
  sharply 
  pointed, 
  fully 
  as 
  long 
  as 
  broad, 
  the 
  sides 
  straight; 
  furcula 
  

   consisting 
  of 
  a 
  pair 
  of 
  minute, 
  rounded, 
  approximate, 
  flattened 
  lobes, 
  

   as 
  long 
  as 
  broad; 
  cerci 
  with 
  the 
  basal 
  half 
  tapering 
  by 
  the 
  rapid 
  slop- 
  

   ing 
  of 
  the 
  upper 
  edge 
  so 
  as 
  to 
  be 
  half 
  as 
  broad 
  in 
  the 
  middle 
  as 
  at 
  base, 
  

   beyond 
  broadening 
  again 
  somewhat 
  on 
  the 
  same 
  side, 
  so 
  that 
  the 
  apical 
  

   half 
  is 
  subspatulate, 
  continuous 
  with 
  the 
  basal 
  part 
  but 
  strongly 
  

   incurved, 
  externally 
  deeply 
  channeled, 
  the 
  tip 
  broadly 
  rounded, 
  the 
  

   whole 
  about 
  as 
  long 
  as 
  the 
  last 
  joint 
  of 
  the 
  fore 
  tarsi; 
  subgenital 
  i)late 
  

   very 
  small 
  and 
  narrow, 
  tumid, 
  apically 
  subtuberculate, 
  the 
  apical 
  

   margin 
  slightly 
  elevated, 
  entire. 
  

  

  The 
  general 
  color 
  is 
  a 
  griseous 
  brown, 
  excepting 
  the 
  abdomen 
  which 
  

   is 
  brownish 
  testaceous; 
  beneath 
  clay 
  yellow; 
  the 
  antennae 
  are 
  yellow 
  

   at 
  the 
  base, 
  darkening 
  beyond 
  to 
  fuscous 
  ferruginous; 
  from 
  behind 
  

   the 
  eye 
  a 
  broad 
  black 
  band 
  extends 
  across 
  the 
  prozona, 
  generally 
  

   enlivened 
  on 
  the 
  genae 
  by 
  an 
  oblique 
  yellow 
  streak, 
  which 
  in 
  the 
  

  

  