﻿1(;4 
  I'liOCEEDIXGS 
  OF 
  THE 
  XATIOXAL 
  MUSEUM. 
  

  

  constricted; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  rather 
  distant, 
  minnte, 
  

   slender 
  denticulations, 
  lying 
  ontside 
  the 
  ridges 
  bounding 
  the 
  sulcus 
  of 
  

   the 
  supraanal 
  plate; 
  cerci 
  coarse, 
  punctate, 
  hardly 
  tapering, 
  slightly 
  

   upcurved, 
  hardly 
  twice 
  as 
  long 
  as 
  broad, 
  the 
  upper 
  apical 
  portion 
  

   strongly 
  compressed, 
  while 
  the 
  rest 
  is 
  rather 
  tumid, 
  the 
  apex 
  rounded, 
  

   reaching 
  beyond 
  the 
  supraanal 
  plate; 
  subgenital 
  plate 
  broad 
  and 
  

   short, 
  neither 
  elevated 
  nor 
  prolonged 
  apieally, 
  the 
  apical 
  margin 
  nar- 
  

   rowly 
  subtruncate. 
  

  

  Length 
  of 
  body, 
  male, 
  15 
  mm., 
  female, 
  1^2.5 
  mm,; 
  antennae, 
  male, 
  6.5 
  

   mm., 
  female, 
  G 
  mm.; 
  tegmina, 
  male, 
  11 
  mm., 
  female, 
  13 
  mm.; 
  hind 
  

   femora, 
  male, 
  8 
  mm., 
  female, 
  10.5 
  mm. 
  

  

  Three 
  males, 
  2 
  females. 
  Yukon 
  lliver, 
  Alaska, 
  Kennicott; 
  tSouris 
  

   Kiver, 
  Assiniboia, 
  Dawson; 
  Glendive, 
  Dawson 
  County, 
  Montana 
  (L. 
  

   Bruner); 
  Custer 
  County, 
  Montana 
  (same). 
  

  

  Bruner 
  states 
  that 
  this 
  insect 
  feeds 
  upon 
  sagebrush, 
  though 
  it 
  is 
  

   uncertain 
  whether 
  this 
  is 
  the 
  species 
  he 
  refers 
  to 
  in 
  his 
  statement, 
  since 
  

   the 
  specimens 
  received 
  from 
  him 
  bear 
  another 
  name. 
  

  

  5. 
  TTAHENSIS 
  SEKIES. 
  

  

  In 
  this 
  small 
  group 
  the 
  prozona 
  of 
  the 
  male 
  is 
  quadrate 
  or 
  subquad- 
  

   rate, 
  and 
  the 
  interspace 
  between 
  the 
  mesosternal 
  lobes 
  is 
  as 
  in 
  the 
  

   spretus 
  series; 
  in 
  front 
  of 
  these 
  lobes, 
  also, 
  the 
  mesosternum 
  of 
  the 
  

   male 
  has 
  a 
  central 
  swelling 
  forming 
  a 
  blunt 
  tubercle. 
  The 
  antennae 
  

   are 
  rather 
  short 
  and 
  differ 
  but 
  little 
  in 
  the 
  two 
  sexes. 
  The 
  tegmina 
  

   are 
  fully 
  developed, 
  but 
  rather 
  short, 
  surpassing 
  the 
  hind 
  femora 
  but 
  

   little 
  if 
  at 
  all, 
  and 
  clear 
  or 
  feebly 
  maculate; 
  the 
  hind 
  tibiae 
  are 
  red, 
  

   with 
  normally 
  eleven 
  spines 
  in 
  the 
  outer 
  series. 
  

  

  The 
  supraanal 
  plate 
  is 
  rudely 
  clypeate 
  and 
  longer 
  than 
  broad; 
  the 
  

   furcula 
  well 
  developed, 
  consisting 
  of 
  flattened, 
  parallel, 
  more 
  or 
  less 
  

   tapering 
  tingers, 
  half 
  as 
  long 
  as 
  the 
  supraanal 
  plate; 
  the 
  cerci 
  are 
  

   laminate 
  and 
  simple, 
  very 
  broad 
  and 
  short, 
  subequa), 
  broadly 
  rounded 
  

   apically, 
  a 
  little 
  upcurved; 
  the 
  subgenital 
  plate 
  is 
  })eculiar, 
  being 
  

   exceptionally 
  long 
  and 
  exceptionally 
  broad, 
  exceptionally 
  elevated 
  

   and 
  prolonged 
  at 
  ajiex, 
  the 
  apical 
  margin 
  strongly 
  rounded 
  and 
  

   mesially 
  entire, 
  though 
  in 
  one 
  species 
  laterally 
  notched, 
  an 
  exceedingly 
  

   exceptional 
  feature. 
  

  

  The 
  species, 
  three 
  in 
  number, 
  vary 
  from 
  a 
  little 
  below 
  the 
  medium 
  

   to 
  rather 
  large 
  sized. 
  They 
  are 
  found 
  mainly 
  in 
  the 
  Cordilleran 
  region 
  

   from 
  about 
  latitude 
  38° 
  northward 
  into 
  Canada. 
  

  

  i8. 
  MELANOPLUS 
  BRUNERI, 
  new 
  species. 
  

   (Plate 
  XI, 
  fig. 
  7.) 
  

   Mdanoplits 
  cxtremusf 
  Bkuneu!, 
  Cau. 
  Ent., 
  XVII 
  (1«85), 
  p. 
  18. 
  

  

  Brownish 
  fuscous, 
  often 
  with 
  a 
  ferruginous 
  tint. 
  Head 
  pale 
  olivaceo- 
  

   testaceous, 
  dark 
  fuscous 
  or 
  ferruginous 
  above, 
  often 
  much 
  infumated 
  or 
  

   mottled 
  with 
  fuscous 
  below 
  and 
  with 
  a 
  ])iceous 
  stripe 
  behind 
  the 
  eyes;. 
  

   vertex 
  feebly 
  tumid, 
  scarcely 
  raised 
  above 
  the 
  level 
  of 
  the 
  pronotum 
  ; 
  

  

  