﻿68 
  riiOCEEDIXGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx. 
  

  

  Dakota, 
  Wyoming, 
  Iowa, 
  jS^ebraska 
  and 
  Missouri 
  (Bruner), 
  Kansas 
  

   (Tliouias), 
  Garden 
  City, 
  Kansas 
  (Bruner, 
  Osborn), 
  Barber 
  and 
  Shaw- 
  

   nee 
  counties, 
  Kansas 
  (Bruner), 
  Colorado 
  or 
  Northern 
  New 
  Mexico 
  

   (Thomas), 
  Cok^rado 
  and 
  New 
  Mexico 
  (Bruner), 
  and 
  Washington 
  County, 
  

   Texas 
  (Bruner). 
  

  

  This 
  species 
  can 
  hardly 
  be 
  confounded 
  with 
  any 
  other, 
  though 
  it 
  

   bears 
  a 
  close 
  general 
  resemblance 
  to 
  Campylacantha 
  acutipcnnisj 
  from 
  

   which 
  it 
  is 
  strongly 
  separated 
  by 
  the 
  prominence 
  of 
  the 
  base 
  of 
  the 
  

   lateral 
  margin 
  of 
  the 
  subgenital 
  plate 
  of 
  the 
  male. 
  It 
  is 
  dimorphic 
  in 
  

   wing 
  length. 
  

  

  18. 
  AEOLOPLUS, 
  new 
  genus. 
  

  

  {aloXoi, 
  variegated; 
  oitXov, 
  armor.) 
  

  

  Body 
  relatively 
  short 
  and 
  stout, 
  considerably 
  enlarged 
  at 
  the 
  meta- 
  

   thorax, 
  even 
  in 
  the 
  male. 
  Head 
  normal, 
  the 
  eyes 
  moderately 
  distant, 
  

   not 
  very 
  prominent 
  except 
  sometimes 
  in 
  the 
  male, 
  the 
  summit 
  well 
  

   arched, 
  the 
  fastigium 
  slightly 
  sulcate 
  between 
  the 
  eyes, 
  the 
  frontal 
  

   costa 
  moderately 
  broad, 
  sube(iual, 
  plane 
  or 
  nearly 
  plane; 
  antennae 
  

   moderately 
  stout, 
  cylindrical, 
  equal, 
  slightly 
  longer 
  (male) 
  or 
  slightly 
  

   shorter 
  (female) 
  than 
  the 
  head 
  and 
  pronotum 
  together. 
  Pronotum 
  

   stout, 
  regularly 
  increasing 
  in 
  size 
  from 
  in 
  front 
  backward, 
  the 
  disk 
  

   gently 
  convex 
  transversely, 
  the 
  prozona 
  slightly 
  and 
  independently 
  

   tumid, 
  with 
  no 
  or 
  an 
  exceedingly 
  feeble 
  median 
  carina, 
  distinguishing 
  

   it 
  from 
  the 
  tiat 
  carinulate 
  metazona; 
  i)osterior 
  margin 
  of 
  pronotum 
  

   very 
  obtusely 
  angulate, 
  the 
  angle 
  more 
  or 
  less 
  rounded; 
  prozona 
  about 
  

   half 
  as 
  long 
  again 
  as 
  the 
  metazona, 
  generally 
  slightly 
  broader 
  than 
  

   long 
  or 
  (juadrate. 
  Prosterual 
  spine 
  conical, 
  erect; 
  interval 
  between 
  

   mesosternal 
  lobes 
  of 
  male 
  about 
  twice 
  as 
  long 
  as 
  broad, 
  often 
  clepsydra! 
  

   from 
  the 
  convexity 
  of 
  the 
  inner 
  margins 
  of 
  the 
  lobes, 
  of 
  female 
  vary- 
  

   ing 
  from 
  the 
  same 
  to 
  quadrate, 
  the 
  metasternal 
  lobes 
  attingent 
  or 
  sub- 
  

   attingent 
  in 
  the 
  male, 
  a 
  little 
  distant 
  in 
  the 
  female. 
  Fore 
  and 
  middle 
  

   femora 
  considerably 
  tumid 
  in 
  the 
  male, 
  the 
  hind 
  femora 
  relatively 
  

   short 
  and 
  stout, 
  occasionally 
  furnished 
  interiorly 
  in 
  the 
  male 
  with 
  a 
  

   basal 
  tooth 
  protecting 
  the 
  calcaria 
  when 
  the 
  tibiae 
  are 
  closed 
  upon 
  the 
  

   femora. 
  Tegmina 
  generally 
  completely 
  developed, 
  but 
  often 
  somewhat 
  

   abbreviate, 
  rarely 
  lobate. 
  Subgenital 
  plate 
  of 
  male 
  with 
  the 
  lateral 
  

   margins 
  very 
  strongly 
  ampliate 
  and 
  arched 
  at 
  the 
  base, 
  and 
  furnished 
  

   with 
  a 
  distinct 
  but 
  not 
  very 
  prominent 
  subapical 
  tubercle, 
  the 
  apical 
  

   margin 
  of 
  the 
  plate 
  forming 
  its 
  inner 
  base; 
  furcula 
  scarcely 
  or 
  not 
  

   apparent; 
  cerci 
  tapering, 
  apically 
  very 
  slender, 
  simple; 
  terminal 
  seg- 
  

   ments 
  of 
  female 
  abdomen 
  more 
  or 
  less 
  considerably 
  abbreviated, 
  the 
  

   ovipositor 
  only 
  partially 
  exserted. 
  

  

  AeoJoplus 
  rcf/alis 
  may 
  be 
  taken 
  as 
  the 
  type. 
  

  

  This 
  genus 
  is 
  closely 
  related 
  to 
  Hesperotettix., 
  and 
  these 
  two 
  genera 
  

   are 
  the 
  only 
  ones 
  in 
  the 
  section 
  of 
  Melanopli 
  with 
  ampliate 
  base 
  to 
  the 
  

   lateral 
  margins 
  of 
  the 
  subgenital 
  plate, 
  in 
  which 
  the 
  abdomen 
  termi- 
  

  

  