﻿236 
  PROCEEDINdS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  black 
  beyond 
  the 
  base, 
  ten 
  to 
  eleven, 
  rarely 
  nine 
  or 
  twelve, 
  in 
  the 
  outer 
  

   vseries. 
  Extremity 
  of 
  male 
  abdomen 
  rather 
  strongly 
  clavate, 
  consider- 
  

   ably 
  recurved, 
  the 
  supraanal 
  plate 
  triangular, 
  with 
  feebly 
  elevated 
  

   lateral 
  nuirgins 
  and 
  bluntly 
  acutangnlate 
  apex, 
  the 
  median 
  sulcus 
  nar- 
  

   row, 
  deep, 
  and 
  equal, 
  between 
  high 
  but 
  rounded 
  walls, 
  terminating 
  a 
  

   little 
  beyond 
  the 
  middle 
  of 
  tlie 
  plate 
  and 
  leaving 
  the 
  tip 
  cochlearate; 
  

   furcula 
  consisting 
  of 
  a 
  pair 
  of 
  minute 
  slender 
  denticulations 
  overlying 
  

   the 
  submedian 
  ridges 
  of 
  the 
  supraanal 
  plate; 
  cerci 
  subequal, 
  tapering 
  

   in 
  the 
  basal 
  fourth 
  only, 
  beyond 
  enlarged 
  to 
  the 
  slightest 
  degree, 
  gently 
  

   incurved 
  throughout 
  but 
  otherwise 
  nearly 
  straight, 
  feebly 
  sulcate 
  exte- 
  

   riorly 
  at 
  the 
  rounded 
  apex, 
  falling 
  well 
  short 
  of 
  the 
  tip 
  of 
  the 
  supra- 
  

   anal 
  plate; 
  subgenital 
  plate 
  small, 
  narrowed 
  leebly 
  in 
  the 
  middle 
  of 
  

   either 
  side, 
  the 
  a])ical 
  margin 
  gradually 
  and 
  gently 
  elevated, 
  entire, 
  

   well 
  rounded 
  as 
  seen 
  from 
  above. 
  

  

  Length 
  of 
  body, 
  male, 
  20 
  mm., 
  female, 
  23 
  mm.; 
  antennae, 
  female, 
  

   10.5 
  mm.; 
  tegmina, 
  male, 
  7 
  mm., 
  female, 
  8.5 
  mm.; 
  hind 
  femora, 
  male, 
  

   11 
  mm., 
  female, 
  15 
  mm. 
  

  

  One 
  male, 
  7 
  females. 
  Michigan, 
  M. 
  Miles; 
  Eock 
  Island, 
  Illinois, 
  B. 
  

   D. 
  Walsh; 
  Dallas 
  County, 
  Iowa, 
  August, 
  J. 
  A, 
  Allen. 
  

  

  This 
  species 
  was 
  determined 
  in 
  1805 
  by 
  the 
  late 
  B. 
  D. 
  Walsh 
  as 
  Fez. 
  

   scuddcri 
  Ilhler, 
  described 
  from 
  the 
  same 
  place 
  but 
  quite 
  distinct. 
  It 
  is 
  

   possible 
  that 
  the 
  two 
  sexes 
  here 
  described 
  belong 
  to 
  two 
  different 
  S[)e- 
  

   cies, 
  as 
  there 
  is 
  considerable 
  and 
  unusual 
  difference 
  between 
  them 
  in 
  

   the 
  shape 
  of 
  the 
  eye 
  and 
  the 
  character 
  of 
  the 
  postocular 
  band; 
  but 
  

   they 
  agree 
  so 
  well 
  otherwise, 
  and 
  show 
  the 
  same 
  pallid 
  annulus 
  on 
  the 
  

   hind 
  tibiae, 
  that 
  I 
  regard 
  them 
  as 
  the 
  same. 
  If 
  distinct, 
  the 
  name 
  heie 
  

   applied 
  should 
  be 
  given 
  to 
  the 
  female, 
  as 
  only 
  the 
  female 
  was 
  received 
  

   from 
  Walsh. 
  The 
  male 
  comes 
  from 
  Michigan. 
  

  

  56. 
  MELANOPLUS 
  ALTITUDINUM. 
  

   (Plate 
  XVl, 
  tig. 
  1.) 
  

  

  Pezotettix 
  marshallii 
  Scuddkr!, 
  Ann. 
  K'ep. 
  Chief 
  Eng., 
  1876 
  (187G), 
  p. 
  502; 
  Ann. 
  

  

  Rep. 
  Geogr. 
  Surv. 
  lOOtb 
  Mei-., 
  1876 
  (1876), 
  p. 
  282. 
  

   Pezotettix 
  altitiidinum 
  Scudder!, 
  Proc. 
  Bost. 
  Soc. 
  Nat. 
  Hist., 
  XX 
  (1879), 
  p. 
  86; 
  

  

  Cent. 
  Ortli. 
  (1879), 
  p. 
  75. 
  

   Fezotettix 
  aangu'mipes 
  Bkuneh!, 
  Publ. 
  Nebr. 
  Acad. 
  8c., 
  Ill 
  (1893), 
  p. 
  27 
  — 
  uudescr 
  

  

  Of 
  medium 
  (male) 
  or 
  moderately 
  large 
  (female) 
  size, 
  there 
  being 
  

   unusual 
  disparity 
  between 
  the 
  sexes, 
  blackish 
  griseous, 
  ferrugiueo-testa- 
  

   ceous 
  beneath. 
  Head 
  not 
  prominent, 
  ferrugineo-testaceous 
  below, 
  pa.ss 
  

   ing 
  into 
  blackish 
  fuscous 
  above, 
  with 
  a 
  broad, 
  piceous 
  postocular 
  band 
  ; 
  

   vertex 
  somewhat 
  tumid, 
  elevated 
  but 
  little 
  above 
  the 
  pronotum, 
  the 
  

   interspace 
  between 
  the 
  eyes 
  nearly 
  twice 
  (male) 
  or 
  nearly 
  thrice 
  (female) 
  

   as 
  broad 
  as 
  the 
  first 
  antennal 
  joint; 
  fastigium 
  not 
  very 
  steeply 
  deidi- 
  

   vent, 
  rather 
  deeply 
  (male) 
  or 
  very 
  shallowly 
  (female) 
  sulcate; 
  frontal 
  

   costa 
  failing 
  to 
  reach 
  the 
  clypeus, 
  equal 
  or 
  subequal, 
  much 
  narrower 
  

   than 
  the 
  interspace 
  between 
  the 
  eyes, 
  sulcate 
  at 
  and 
  below 
  the 
  ocellus 
  

   particularly 
  in 
  the 
  male, 
  punctate 
  throughout 
  like 
  the 
  rest 
  of 
  the 
  face 
  

  

  