﻿56 
  PROCEEDINGS 
  OE 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx 
  

  

  metastetliia 
  together 
  much 
  longer 
  than 
  broad; 
  interspace 
  between 
  

   mesosternal 
  lobes 
  generally 
  twice 
  as 
  long 
  as 
  broad 
  in 
  the 
  male, 
  almost 
  

   equally 
  narrow 
  or 
  subquadrate 
  in 
  the 
  female, 
  the 
  metasternal 
  lobes 
  

   subattingent 
  in 
  both 
  sexes. 
  Tegmiiia 
  and 
  wings 
  always 
  present, 
  gen- 
  

   erally 
  fully 
  developed 
  or 
  a 
  little 
  abbreviate, 
  but 
  sometimes 
  lobate. 
  

   Fore 
  and 
  middle 
  femora 
  of 
  male 
  tumid 
  ; 
  hind 
  femora 
  long 
  and 
  slender, 
  

   soiDewhat 
  compressed, 
  generally 
  surpassing 
  the 
  abdomen, 
  the 
  superior 
  

   carina 
  slight, 
  unarmed; 
  hind 
  tibiae 
  feebly 
  ampliate 
  apically, 
  with 
  

   spines 
  of 
  similar 
  length 
  on 
  the 
  two 
  sides; 
  first 
  joint 
  of 
  hind 
  tarsi 
  

   scarcely 
  longer 
  than 
  the 
  third, 
  the 
  second 
  small, 
  with 
  a 
  large 
  inferior 
  

   apical 
  lobe; 
  arolium 
  rather 
  large, 
  nearly 
  twice 
  as 
  long 
  as 
  broad. 
  Sub- 
  

   genital 
  plate 
  of 
  male 
  furnished 
  with 
  a 
  prominent, 
  subapical, 
  more 
  or 
  

   less 
  conical 
  tubercle, 
  the 
  lateral 
  margins 
  of 
  the 
  plate 
  suddenly 
  ampliate 
  

   at 
  base; 
  furcula 
  always 
  distinctly 
  present 
  as 
  a 
  pair 
  of 
  projecting 
  lobes; 
  

   last 
  abdominal 
  segment 
  of 
  female 
  not 
  abbreviate, 
  the 
  ovipositor 
  nor- 
  

   mally 
  exserted. 
  

  

  The 
  type 
  is 
  H. 
  festivus 
  Scudder, 
  a 
  species 
  mistaken 
  for 
  H. 
  viridis 
  

   Thomas 
  at 
  the 
  time 
  the 
  genus 
  was 
  described. 
  

  

  This 
  genus 
  is 
  closely 
  related 
  to 
  Hypochlora 
  and 
  Campylacantha, 
  but 
  

   is 
  separated 
  from 
  them 
  by 
  the 
  basal 
  ampliation 
  of 
  the 
  margins 
  of 
  the 
  

   subgenital 
  plate 
  of 
  the 
  male. 
  One 
  of 
  tlie 
  species 
  indeed 
  (the 
  most 
  

   aberrant 
  one) 
  was 
  originally 
  placed 
  by 
  Bruaner 
  in 
  Hypocldora. 
  The 
  

   genus 
  is 
  still 
  more 
  closely 
  allied 
  to 
  AeoJoplus^iiYom. 
  which 
  it 
  is 
  separable 
  

   by 
  the 
  form 
  of 
  the 
  prouotum 
  and 
  the 
  slenderness 
  of 
  the 
  body. 
  

  

  It 
  is 
  found 
  across 
  the 
  United 
  States, 
  but 
  only 
  a 
  single 
  species 
  is 
  

   known 
  east 
  of 
  the 
  Great 
  Plains, 
  and 
  that 
  one 
  has 
  only 
  been 
  found 
  on 
  

   or 
  near 
  the 
  Atlantic 
  border. 
  It 
  is 
  generally 
  characteristic 
  of 
  the 
  West. 
  

  

  Many 
  of 
  the 
  species 
  are 
  very 
  closely 
  allied 
  and 
  have 
  hitherto 
  been 
  

   confounded 
  by 
  all 
  observers. 
  A 
  large 
  amount 
  of 
  material 
  now 
  enables 
  

   uie 
  to 
  distinguish 
  them 
  and 
  to 
  find 
  characters 
  which 
  will 
  rarely 
  fail 
  of 
  

   tolerably 
  certain 
  separation. 
  

  

  ANALYTICAL 
  KEY 
  TO 
  THE 
  SPECIES 
  OF 
  HESPEROTETTIX. 
  

  

  A'. 
  Metazona 
  of 
  pronotum 
  distinctly 
  punctate 
  on 
  dorsum; 
  prozona 
  smooth, 
  except 
  

   sometimes 
  feebly 
  punctate 
  on 
  dorsum; 
  nowhere 
  rugulose. 
  

  

  ?>'. 
  Pronotum 
  highly 
  and 
  irregularly 
  diversified 
  in 
  color, 
  or 
  else 
  nearly 
  devoid 
  of 
  

   markings 
  of 
  any 
  kind, 
  the 
  dorsum 
  nearly 
  plane; 
  tegmina 
  in 
  the 
  diversified 
  species 
  

   marked 
  with 
  a 
  white 
  or 
  pallid 
  stripe 
  on 
  the 
  division 
  line 
  between 
  the 
  discoidal 
  

   and 
  anal 
  areas. 
  

  

  c'. 
  Transverse 
  sulci 
  of 
  the 
  pronotum 
  distinctly 
  marked 
  in 
  black; 
  hind 
  femora 
  

   with 
  a 
  distinct 
  pregenicular 
  anuulation. 
  

   (V. 
  Relatively 
  slender-bodied, 
  with 
  slender 
  femora; 
  tegmina 
  rarely 
  as 
  short 
  as 
  

   the 
  body 
  and 
  then 
  only 
  in 
  male; 
  antennae 
  of 
  male 
  slender, 
  distinctly 
  longer 
  

  

  than 
  the 
  head 
  and 
  pronotum 
  together 
  1. 
  rir'ulis 
  (p. 
  57). 
  

  

  dK 
  Kelatively 
  stout-bodied, 
  with 
  stout 
  femora; 
  tegmina 
  surpassing 
  the 
  body 
  

   only 
  in 
  the 
  male 
  and 
  then 
  but 
  slightly; 
  antennae 
  of 
  male 
  coarse, 
  scarcely 
  

  

  longer 
  than 
  the 
  head 
  and 
  pronotum 
  together 
  2. 
  miridionalix 
  (p. 
  59). 
  

  

  c". 
  Transverse 
  sulci 
  of 
  pronotum 
  not 
  marked 
  in 
  strong 
  colored 
  contrast 
  to 
  sur- 
  

   roundings; 
  hind 
  femora 
  without 
  red 
  pregenicular 
  annulation 
  or 
  only 
  faint 
  signs 
  

   ol 
  one 
  3. 
  fesiirus 
  (p. 
  60). 
  

  

  