﻿NO. 
  1124. 
  REVISION 
  OF 
  THE 
  MELAyorLI—SCUDDER. 
  227 
  

  

  50. 
  MELANOPLUS 
  DA\A^SONI. 
  

   (Plates 
  I, 
  lig. 
  a; 
  XV, 
  fig. 
  5.) 
  

  

  Frsotetlix 
  dawsoni 
  Scuddkr!, 
  Daws. 
  Eep. 
  Geol. 
  Kec. 
  49tli 
  Par. 
  (1875), 
  p. 
  343; 
  Bntt. 
  

  

  Orth. 
  N. 
  A. 
  Bound. 
  Comm. 
  (1875), 
  p. 
  3; 
  Can. 
  Ent., 
  XII 
  (1880), 
  p. 
  75.— 
  C'atl- 
  

  

  KIELD, 
  Eep. 
  Ent. 
  !<oc. 
  Ont., 
  XYIII 
  (1886), 
  p. 
  71; 
  Can. 
  Kec. 
  8c., 
  II 
  (1S87), 
  

  

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

   PezoMtix 
  tellttstris 
  Scuddeu!, 
  Ann. 
  Rep. 
  Cbief 
  Eng., 
  1876 
  (1876), 
  p. 
  502; 
  Ann. 
  

  

  Rep. 
  Geogr. 
  Surv. 
  100th 
  Mer., 
  1876 
  (1876), 
  p. 
  282; 
  Can. 
  Ent., 
  XII 
  (1880). 
  p. 
  

  

  75.— 
  Bruner, 
  Rep. 
  U. 
  S. 
  Ent. 
  Comm., 
  Ill, 
  (1883), 
  p. 
  59. 
  

   recoiettix 
  ahdiiuvi 
  BodgkI, 
  Can. 
  Ent., 
  IX 
  (1877), 
  p. 
  113. 
  — 
  .Scuddeh!, 
  Can. 
  Ent., 
  

  

  XII 
  (1880), 
  p. 
  75.— 
  Bruner, 
  Publ. 
  Nebr. 
  Acad. 
  Sc, 
  III 
  (1893), 
  p. 
  27. 
  

   Melanoplus 
  abditum 
  OsnoRX, 
  Proc. 
  Iowa 
  Acad. 
  Sc, 
  I, 
  Pt. 
  11 
  (1892), 
  ji. 
  118. 
  

  

  Obscure 
  fusco 
  testaceous. 
  Head 
  slightly 
  prominent 
  in 
  the 
  male 
  

   ouly, 
  olivaceo 
  testaceous, 
  infuscated 
  above, 
  with 
  a 
  broad 
  i)iceous, 
  i)ost- 
  

   ocular 
  band 
  : 
  vertex 
  tumid, 
  distinctly 
  elevated 
  above 
  the 
  pronotTim, 
  

   the 
  interspace 
  between 
  the 
  eyes 
  rather 
  broad, 
  at 
  least 
  twice 
  as 
  broad 
  

   as 
  the 
  fli 
  st 
  autennal 
  joint 
  ; 
  fastigium 
  steeply 
  declivent, 
  plane, 
  the 
  lateral 
  

   margins 
  feebly 
  and 
  broadly 
  elevated 
  ; 
  frontal 
  costa 
  broad, 
  subecjual, 
  as 
  

   broad 
  as 
  the 
  interspace 
  between 
  the 
  eyes, 
  fading 
  out 
  before 
  reaching 
  

   the 
  clypeus, 
  above 
  plane 
  (male) 
  or 
  feebly 
  convex 
  (female), 
  at 
  and 
  

   below 
  the 
  ocellus 
  slightly 
  sulcate, 
  everywhere 
  punctate, 
  Avith 
  a 
  tend- 
  

   ency 
  above 
  to 
  a 
  biseriate 
  arrangement; 
  eyes 
  not 
  very 
  large, 
  not 
  

   ]irominent, 
  scarcely 
  longer 
  than 
  the 
  intraocular 
  portion 
  of 
  the 
  genae; 
  

   antennae 
  ferruginous, 
  four-fifths 
  (male) 
  or 
  three 
  fifths 
  (female) 
  as 
  long 
  

   as 
  the 
  hind 
  femora. 
  Pronotum 
  subequal 
  (male) 
  or 
  distinctly 
  compressed 
  

   above 
  anteriorly 
  (female), 
  short, 
  the 
  disk 
  transversely 
  a 
  little 
  convex 
  

   and 
  i)assing 
  into 
  the 
  vertical 
  lateral 
  lobes 
  by 
  a 
  rounded 
  angle, 
  which 
  

   is 
  nevertheless 
  so 
  abrupt 
  as 
  to 
  form, 
  at 
  least 
  in 
  the 
  male, 
  tolerably 
  dis- 
  

   tinct 
  lateral 
  carinae; 
  lateral 
  lobes 
  lighter 
  colored 
  below 
  than 
  the 
  disk, 
  

   above 
  on 
  the 
  prozona 
  a 
  broad, 
  lustrous, 
  dark 
  colored 
  band, 
  sometimes 
  

   obsolete, 
  sometimes 
  deepening 
  to 
  piceous; 
  median 
  carina 
  slight, 
  i)er- 
  

   current, 
  equal, 
  but 
  blunter 
  on 
  the 
  prozona 
  than 
  on 
  the 
  metazona; 
  front 
  

   margin 
  feebly 
  convex, 
  with 
  a 
  slight 
  mesial 
  emargination 
  not 
  always 
  

   distinct, 
  hind 
  margin 
  obtusangulate 
  equally 
  in 
  macropterous 
  and 
  

   brachypterous 
  forms; 
  prozona 
  distinctly 
  lojigitudinal 
  (male) 
  or 
  quad- 
  

   rate 
  or 
  subquadrate 
  (female) 
  a 
  third 
  to 
  a 
  fourth 
  longer 
  than 
  the 
  more 
  

   closely 
  punctate 
  metazona. 
  Prosternal 
  spine 
  very 
  short 
  and 
  blunt, 
  

   lathcr 
  stout, 
  somewhat 
  transverse; 
  Interspace 
  between 
  mesosternal 
  

   lobes 
  half 
  as 
  long 
  again 
  as 
  broad 
  (male) 
  or 
  a 
  little 
  transverse 
  (female). 
  

   Tegmina 
  brownish 
  fuscous, 
  more 
  or 
  less 
  feebly 
  flecked 
  with 
  fuscous 
  

   and 
  either 
  greatly 
  surpassing 
  the 
  hind 
  femora, 
  moderately 
  broad 
  and 
  

   subeipial 
  nearly 
  to 
  the 
  well 
  rounded 
  tip 
  (JL 
  d. 
  complefus, 
  Plate 
  I, 
  fig. 
  a), 
  

   or 
  ovate-lanceolate, 
  apically 
  subacuminate, 
  a 
  little 
  longer 
  than 
  the 
  

   pronotum 
  only 
  (ill. 
  cL 
  telliistris); 
  wings 
  when 
  fully 
  developed 
  ample, 
  

   hyaline, 
  with 
  pale 
  brownish 
  fuscous 
  veins, 
  paler 
  and 
  sometimes 
  wholly 
  

   pallid 
  in 
  the 
  anal 
  area. 
  Fore 
  femora 
  of 
  male 
  very 
  feebly 
  enlarged; 
  

  

  