﻿NO. 
  1124. 
  EEVISIOX 
  OF 
  THE 
  MELANOPLI—SCVDDER. 
  369 
  

  

  ridges; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  subsemicircnlar 
  distant 
  lobes, 
  

   ])rojecting 
  from 
  the 
  middle 
  of 
  the 
  thickened 
  plates 
  occupying 
  the 
  inner 
  

   portion 
  of 
  the 
  last 
  dorsal 
  segment, 
  the 
  projecting 
  portion 
  lying 
  outside 
  

   the 
  bases 
  of 
  the 
  ridges 
  bordering 
  the 
  basal 
  sulcus 
  of 
  the 
  supraanal 
  

   plate; 
  cerci 
  large, 
  broad, 
  and 
  rather 
  stout, 
  apically 
  a 
  little 
  incurved, 
  

   broadly 
  constricted 
  mesially 
  as 
  seen 
  from 
  the 
  side, 
  the 
  apical 
  portion 
  

   triangularly 
  expanded 
  above, 
  truncate 
  after 
  a 
  slight 
  expansion 
  below, 
  

   the 
  apical 
  margin 
  broadly 
  convex, 
  subtruncate; 
  in 
  fracercal 
  plates 
  about 
  

   as 
  long 
  as 
  the 
  supraanal 
  plate, 
  in 
  the 
  apical 
  half 
  a 
  little 
  expanded 
  beyond 
  

   the 
  lateral 
  margins 
  of 
  the 
  same; 
  subgenital 
  plate 
  moderately 
  narrow, 
  

   considerably 
  prolonged 
  and 
  elevated 
  apically, 
  as 
  well 
  as 
  thickened. 
  

  

  Length 
  of 
  body, 
  male, 
  33 
  mm. 
  ; 
  antennae, 
  circ. 
  16 
  mm. 
  ; 
  tegmina, 
  25 
  

   mm.; 
  hind 
  femora, 
  18.5 
  mm. 
  

  

  One 
  male. 
  Lerdo, 
  Durango, 
  Mexico, 
  ^^Tovember 
  (L. 
  Bruner). 
  

  

  This 
  species 
  is 
  rather 
  nearer 
  to 
  M. 
  femoratiis 
  than 
  to 
  M. 
  hivittatns, 
  

   though 
  geographically 
  separated 
  more 
  widely 
  from 
  the 
  former. 
  

  

  128. 
  MELANOPLUS 
  YARROWII. 
  

  

  (Plate 
  XXV, 
  fig. 
  2.) 
  

  

  Caloptenus 
  yarrowii 
  Thomas, 
  Eep. 
  Geol. 
  Geogr. 
  Expl. 
  100th 
  Mer., 
  V 
  (1875), 
  p. 
  

   894, 
  pi. 
  XLV, 
  fig. 
  5; 
  Rep. 
  U. 
  S. 
  Ent. 
  Comrn., 
  I 
  (1878), 
  p. 
  43.— 
  Bkunkr, 
  ibid., 
  

   111(1883), 
  p. 
  60. 
  

  

  Light 
  brownish 
  yellow, 
  somewhat 
  cinereous, 
  nearly 
  uniform. 
  Head 
  

   nearly 
  uniform, 
  hardly 
  darker 
  above, 
  the 
  vertex 
  gently 
  tumid, 
  the 
  

   interspace 
  between 
  the 
  eyes 
  not 
  very 
  broad, 
  distinctly 
  narrower 
  than 
  

   the 
  frontal 
  costa, 
  the 
  fastigium 
  feebly 
  sulcate 
  throughout; 
  frontal 
  costa 
  

   moderately 
  broad, 
  slightly 
  broader 
  below 
  than 
  above, 
  failing 
  to 
  reach 
  

   the 
  clypeus, 
  very 
  feebly 
  and 
  broadly 
  sulcate 
  below 
  the 
  ocellus, 
  punctate 
  

   on 
  either 
  side; 
  eyes 
  moderate, 
  only 
  feebly 
  prominent, 
  hardly 
  longer 
  

   than 
  the 
  infraocular 
  portion 
  of 
  the 
  genae; 
  antennae 
  red. 
  Pronotum 
  

   feebly 
  enlarging 
  apically, 
  the 
  front 
  margin 
  truncate, 
  the 
  hind 
  margin 
  

   bluntly 
  and 
  very 
  obtusely 
  angulate, 
  the 
  disk 
  nearly 
  plane, 
  the 
  lateral 
  

   lobes 
  subvertical; 
  median 
  carina 
  feeble, 
  subobsolete 
  between 
  the 
  sulci; 
  

   lateral 
  carinae 
  very 
  rounded 
  ; 
  prozona 
  nearly 
  smooth, 
  scarcely 
  longi- 
  

   tudinal 
  (male) 
  or 
  quadrate 
  (female), 
  but 
  little 
  longer 
  than 
  the 
  metazona, 
  

   its 
  middle 
  sulcus 
  transverse, 
  the 
  posterior 
  sinuate; 
  metazona 
  closely 
  

   and 
  rather 
  finely 
  punctate; 
  pronotum 
  without 
  markings 
  except 
  a 
  faint 
  

   slender 
  tlavous 
  streak 
  along 
  the 
  discal 
  side 
  of 
  the 
  lateral 
  carinae 
  and, 
  

   in 
  the 
  male 
  at 
  least, 
  some 
  irregular 
  blackish 
  fuscous 
  blotches 
  on 
  the 
  

   lateral 
  lobes. 
  Prosternal 
  spine 
  moderately 
  long, 
  conico-cylindrical, 
  

   blunt, 
  erect. 
  Tegmina 
  reaching 
  the 
  tip 
  of 
  the 
  hind 
  femora, 
  brownish 
  

   testaceous 
  without 
  markings, 
  tapering 
  very 
  gently 
  and 
  regularly 
  to 
  a 
  

   well-rounded 
  tip; 
  wings 
  pellucid 
  with 
  a 
  feeble 
  greenish 
  tinge, 
  the 
  veins 
  

   and 
  cross 
  veins 
  fuscous 
  only 
  above 
  the 
  anal 
  area, 
  except 
  to 
  a 
  slight 
  

   degree. 
  Hind 
  femora 
  olivaceo-testaceous, 
  more 
  or 
  less 
  infumated 
  above 
  

   and 
  on 
  the 
  outer 
  face, 
  the 
  lower 
  carina 
  of 
  the 
  outer 
  face 
  llavous, 
  and 
  

   Proc. 
  N. 
  M. 
  vol. 
  XX 
  2^1: 
  

  

  