﻿168 
  PBOCEEDINdS 
  OF 
  THE 
  XATIOXAL 
  MUSEUM. 
  

  

  narrowed 
  above 
  the 
  ocellus, 
  as 
  broad 
  as 
  tlie 
  interspace 
  between 
  the 
  

   eyes, 
  feebly 
  depressed 
  nt 
  the 
  ocellus, 
  i)uiictate 
  throughout; 
  eyes 
  rather 
  

   large, 
  not 
  very 
  prominent, 
  as 
  long 
  as 
  the 
  iufraocnlar 
  i)orti<)n 
  of 
  the 
  

   genae; 
  antennae 
  testaceous. 
  Pronotum 
  gently 
  widening 
  posteriorly, 
  

   the 
  front 
  margin 
  scarcely 
  convex 
  and 
  feebly 
  and 
  roundly 
  emarginate 
  

   in 
  the 
  middle, 
  the 
  hind 
  margin 
  obtusely 
  angulate, 
  the 
  angle 
  rounded, 
  

   the 
  median 
  carina 
  distinct 
  and 
  rather 
  shar}) 
  on 
  the 
  metazon 
  a, 
  feeble 
  (m 
  

   tlie 
  prozona 
  and 
  obsolete 
  between 
  the 
  sulci: 
  disk 
  of 
  ])roz()na 
  i)laiio 
  

   convex, 
  glassing 
  almost 
  insensibly 
  but 
  with 
  a 
  broadly 
  rounded 
  angle 
  

   into 
  the 
  subvertical 
  lateral 
  lobes, 
  the 
  lateral 
  carinae 
  feebly 
  indicated 
  

   on 
  the 
  metazona; 
  mesial 
  half 
  of 
  the 
  disk 
  of 
  the 
  prozona 
  very 
  dark 
  

   fusco-olivaceous, 
  bordered 
  on 
  either 
  side 
  by 
  luteous; 
  lateral 
  lobes 
  and 
  

   metazona 
  luteo-testaceous 
  with 
  an 
  olivaceous 
  tinge, 
  the 
  upper 
  half 
  of 
  

   the 
  lateral 
  lobes 
  of 
  the 
  iirozona 
  occupied 
  by 
  a 
  broad 
  fusco-fuliginous 
  

   glistening 
  band, 
  failing 
  to 
  reach 
  the 
  anterior 
  border 
  and 
  broader 
  on 
  

   the 
  posterior 
  than 
  on 
  the 
  anterior 
  section; 
  prozona 
  smooth, 
  quadrate, 
  

   a 
  very 
  little 
  longer 
  than 
  the 
  closely 
  punctate 
  metazona. 
  Prosternal 
  

   spine 
  long, 
  slightly 
  appressed 
  cylindrical, 
  blunt-tipped, 
  very 
  feebly 
  

   retrorse; 
  interspace 
  between 
  mesosternal 
  lobes 
  of 
  male 
  about 
  half 
  as 
  

   long 
  again 
  as 
  broad, 
  th3 
  metasternal 
  lobes 
  attingent. 
  Tegmina 
  scarcely 
  

   attaining 
  the 
  tips 
  of 
  the 
  hind 
  femora, 
  moderately 
  broad 
  at 
  base, 
  dis- 
  

   tinctly 
  tapering, 
  the 
  ti[) 
  narrow 
  and 
  strongly 
  rounded, 
  brownish 
  testa- 
  

   ceous 
  without 
  markings; 
  wings 
  pellucid, 
  the 
  main 
  veins 
  testaceous, 
  

   the 
  others 
  blackish 
  fuscous. 
  Femora 
  yellowish 
  brown, 
  the 
  hind 
  pair 
  

   much 
  infuscated 
  on 
  the 
  outer 
  face, 
  especially 
  above, 
  the 
  ujiper 
  surface 
  

   broadly 
  marked 
  with 
  fuscous 
  near 
  base 
  at 
  tip, 
  and 
  with 
  two 
  other 
  

   nearly 
  confluent 
  belts 
  between, 
  the 
  inner 
  face 
  feebly 
  and 
  the 
  lower 
  face 
  

   distinctly 
  reddened 
  ; 
  genicular 
  arc 
  black 
  ; 
  hind 
  tibiae 
  uniformly 
  red, 
  the 
  

   spines 
  black 
  nearly 
  to 
  the 
  base, 
  eleven 
  in 
  number 
  in 
  the 
  outer 
  series. 
  

   Extremity 
  of 
  male 
  abdomen 
  broadly 
  clavate, 
  strongly 
  upturned, 
  the 
  

   supraaual 
  jjlate 
  rather 
  long, 
  triangular, 
  with 
  rounded 
  sides, 
  acutangu- 
  

   late 
  apex, 
  the 
  basal 
  two-thirds 
  of 
  the 
  lateral 
  margins 
  broadly 
  elevated, 
  

   the 
  median 
  sulcus 
  narrow 
  and 
  deep, 
  extending 
  over 
  two-thirds 
  of 
  the 
  

   idate, 
  bounded 
  by 
  moderate 
  walls; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  very 
  

   broad, 
  parallel, 
  elongated, 
  strongly 
  flattened 
  pads 
  with 
  rounded 
  tips, 
  

   almost 
  leaching 
  the 
  middle 
  of 
  the 
  supraanal 
  plate, 
  their 
  outer 
  margins 
  

   broadly 
  rounded; 
  cerci 
  consisting 
  of 
  coarse 
  and 
  broad, 
  punctate 
  

   laminae, 
  feebly 
  narrowing 
  in 
  the 
  basal 
  half, 
  beyond 
  a 
  little 
  upturned, 
  

   equal, 
  very 
  broadly 
  rounded 
  at 
  apex, 
  straight 
  or 
  feebly 
  outcurved 
  

   apically, 
  not 
  so 
  long 
  as 
  the 
  supraanal 
  plate; 
  infracercal 
  ])lates 
  visible 
  

   only 
  at 
  extreme 
  base; 
  subgenital 
  plate 
  enormously 
  produced 
  and 
  

   elevated 
  (more 
  abruptly 
  elevated 
  than 
  represented 
  in 
  the 
  figure), 
  the 
  

   apical 
  margin 
  deeply 
  emarginate 
  laterally, 
  and 
  well 
  rounded 
  and 
  entire 
  

   mesially. 
  

  

  Length 
  of 
  body, 
  male, 
  27 
  mm. 
  ; 
  tegmina, 
  18 
  mm. 
  ; 
  hind 
  femora, 
  14 
  mm. 
  

  

  One 
  male. 
  Salt 
  Lake, 
  Utah, 
  August 
  30, 
  L. 
  Bruner 
  (U.S.N.M.— 
  

   Iviley 
  collection). 
  

  

  