﻿240 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx. 
  

  

  narrower 
  tban 
  the 
  lobes 
  (female). 
  Tegmina 
  abbreviate, 
  much 
  shorter 
  

   than 
  the 
  i^rouotum, 
  lateral 
  and 
  widely 
  distant, 
  obovate, 
  twice 
  as 
  broad 
  

   as 
  long, 
  well 
  rounded 
  apically. 
  Fore 
  and 
  middle 
  femora 
  somewhat 
  

   tumid 
  ill 
  the 
  male; 
  hind 
  femora 
  uniformly 
  llavous 
  with 
  a 
  faint 
  greenish 
  

   tinge, 
  the 
  entire 
  geniculation 
  and 
  base 
  of 
  tibiae 
  black; 
  rest 
  of 
  hind 
  

   tibiae 
  greenish 
  yellow, 
  the 
  spines 
  bhick 
  beyond 
  the 
  base, 
  seven 
  (female) 
  

   to 
  nine 
  (male) 
  in 
  number 
  in 
  the 
  outer 
  series. 
  Extremity 
  of 
  male 
  abdo- 
  

   men 
  scarcely' 
  clavate, 
  somewhat 
  recurved, 
  the 
  supraanal 
  jjlate 
  subtri- 
  

   angnlar 
  with 
  sinuous 
  sides 
  and 
  rounded 
  subrectangulate 
  apex, 
  the 
  

   surface 
  subtectate, 
  rising 
  to 
  the 
  sharp 
  submedian 
  ridges 
  which 
  inclose 
  

   the 
  percurrent 
  but 
  mesially 
  interru])ted 
  median 
  sulcus; 
  furcula 
  obso 
  

   lete, 
  represented 
  by 
  mere 
  disk-like 
  thickenings 
  of 
  the 
  inner 
  portion 
  of 
  

   the 
  divided 
  halves 
  of 
  the 
  last 
  dorsal 
  segment; 
  cerci 
  small, 
  moderately 
  

   slender, 
  subequal, 
  nearly 
  straight 
  but 
  incurved, 
  apically 
  truncate, 
  

   shorter 
  than 
  the 
  supraanal 
  plate; 
  subgenital 
  plate 
  very 
  small 
  and 
  very 
  

   short, 
  of 
  very 
  unequal 
  breadth, 
  the 
  lateral 
  and 
  apical 
  margins 
  on 
  the 
  

   same 
  plane, 
  as 
  seen 
  from 
  above 
  angulate. 
  

  

  Length 
  of 
  body, 
  male, 
  12.25 
  mm., 
  female, 
  14.5 
  mm.; 
  antennae, 
  male, 
  

   8 
  mm., 
  female, 
  6.5 
  mm.; 
  tegmina, 
  male, 
  2.5 
  mm., 
  female, 
  2 
  mm.; 
  hind 
  

   femora, 
  male, 
  8.75 
  mm., 
  female, 
  mm. 
  

  

  One 
  male, 
  1 
  female. 
  Mexico, 
  W. 
  S. 
  Blatchley. 
  

  

  59. 
  MELANOPLUS 
  RUSTICUS. 
  

   (Plate 
  XVI, 
  fig. 
  4.) 
  

   Pezotetiix 
  riisUciis 
  Stal, 
  Bib. 
  K. 
  Sv. 
  Vet.-Akad. 
  HaucU., 
  V. 
  Xo. 
  9 
  (1878), 
  p. 
  13, 
  

  

  I 
  have 
  not 
  seen 
  this 
  species, 
  but 
  by 
  the 
  courtesy 
  of 
  Doctor 
  Aurivillins 
  

   I 
  am 
  able 
  to 
  give 
  an 
  illustration 
  ot 
  the 
  male 
  abdominal 
  appendages. 
  

   Stal's 
  description 
  is 
  as 
  follows: 
  

  

  Praecedenti 
  [Mel. 
  plebejiis] 
  8inullimu.s, 
  differt 
  ocuJis 
  iiouniliil 
  niinoribus, 
  ;iii 
  tenuis 
  

   lon^ioribns, 
  vitta 
  lateral! 
  pronoti 
  percurrente, 
  forma 
  iutervalli 
  steruornni, 
  lobis 
  <;eiii- 
  

   cularibusfemorura 
  posticormii 
  iiigrisi, 
  tantum 
  ajiice 
  iino 
  pallid 
  is 
  iiec 
  iiou 
  forma 
  partiuni 
  

   aiialiura 
  maris. 
  ^, 
  9 
  • 
  Long. 
  20 
  mill. 
  

  

  (J. 
  Antennae 
  femoribus 
  posticis 
  vix 
  breviores; 
  oculi 
  majnsculi, 
  modice 
  convexi 
  ; 
  

   iutervallum 
  lobornm 
  mesosternaliuin 
  anterins 
  lobis 
  dimidio 
  angustius, 
  retrorsnm 
  

   sensim 
  ampliatum; 
  lobi 
  mesosternales 
  leviter 
  transversi; 
  lobi 
  metastemales 
  fortiter 
  

   appropinquati 
  ; 
  abdomen 
  posterius 
  hand 
  vel 
  vix 
  tumescens, 
  apice 
  levissiinerecurvum 
  ; 
  

   segmentnm 
  dorsale 
  nltimum 
  e 
  medio 
  lobes 
  duos 
  sat 
  longos, 
  sensim 
  aonminatos, 
  divari- 
  

   catos, 
  emitteus; 
  lamina 
  snpraanalis 
  triangularis 
  paullo 
  lougior 
  quam 
  basi 
  latior, 
  

   lateribns 
  leviter 
  rotundatis 
  instructa, 
  apice 
  augulura 
  subacutum 
  formans, 
  sulco 
  lo;i- 
  

   gitndinali 
  ante 
  medium 
  distincto, 
  pone 
  medium 
  obsoleto 
  instructa, 
  prope 
  latera 
  longi- 
  

   tudinaliter 
  irapressa; 
  cerci 
  compress!, 
  latinsculi, 
  ))asi 
  sensim 
  nonnihil 
  augustati, 
  dein 
  

   ubiquea('([uelati, 
  posterins 
  extns 
  leviter 
  excavati 
  ; 
  lamina 
  subgenitalis 
  brevis, 
  fortiter 
  

   recurva, 
  sinuato-truncata, 
  macula 
  parva 
  apicali 
  nigra 
  notata, 
  

  

  $ 
  . 
  Antennae 
  femoribtis 
  posticis 
  nonuibil 
  breviores; 
  oculi 
  minoies; 
  lobi 
  mesoster- 
  

   nales 
  transversi, 
  intervallo 
  circiter 
  duplo 
  latiores; 
  iutervallum 
  loborum 
  mesosternal- 
  

   ium 
  utrimciue 
  sinuatum, 
  prope 
  basin 
  angustius, 
  bine 
  retrorsnm 
  ampliatum; 
  lobi 
  

   metastemales 
  sat 
  distantes." 
  

  

  Patria: 
  Texas. 
  (Miis. 
  Holm.) 
  

  

  Stiil 
  places 
  this 
  species 
  in 
  his 
  fourth 
  division 
  of 
  the 
  genus 
  Pezotctfi.r, 
  

   which 
  he 
  regards 
  as 
  equivalent 
  to 
  lUiroxya 
  iScudder, 
  and 
  which 
  he 
  defines 
  

  

  