﻿170 
  PBOCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  scarcely 
  elevated 
  above 
  the 
  pronotum, 
  the 
  interspace 
  between 
  the 
  eyes 
  

   half 
  as 
  broad 
  again 
  (male) 
  or 
  fully 
  twice 
  as 
  broad 
  (female) 
  as 
  the 
  first 
  

   antenna! 
  joint; 
  fastigium 
  somewhat 
  strongly 
  declivent, 
  broadly 
  and 
  

   rather 
  deei^ly 
  (male) 
  or 
  shallowly 
  (female). 
  sulcate; 
  frontal 
  costa 
  rather 
  

   prominent, 
  percurrent, 
  feebly 
  narrowed 
  above, 
  as 
  broad 
  as 
  the 
  inter- 
  

   space 
  between 
  the 
  eyes, 
  finely 
  and 
  irregularly 
  punctate 
  throughout, 
  but 
  

   more 
  sparingly 
  below 
  than 
  above, 
  sulcate 
  at 
  and 
  a 
  little 
  below 
  the 
  

   ocellus; 
  eyes 
  moderately 
  large, 
  moderately 
  prominent, 
  longer 
  than 
  the 
  

   infraocular 
  portion 
  of 
  the 
  genae; 
  antennae 
  rufo-testaceous, 
  about 
  three- 
  

   fourths 
  (male) 
  or 
  less 
  than 
  three-fifths 
  (female) 
  aslongas 
  the 
  hind 
  femora. 
  

   Pronotum 
  subequal, 
  expanding 
  feebly 
  on 
  the 
  metazona, 
  luteo-castane- 
  

   ous, 
  the 
  metazona 
  and 
  especially 
  its 
  disk 
  rufo-castaneous, 
  the 
  lateral 
  

   lobes 
  of 
  the 
  jirozona 
  with 
  a 
  very 
  broad 
  piceous 
  postocular 
  band; 
  disk 
  

   of 
  pronotum 
  very 
  broadly 
  convex, 
  passing 
  by 
  a 
  rounded 
  but 
  distinct 
  

   shoulder, 
  on 
  the 
  metazona 
  forming 
  subdistinct 
  lateral 
  carinae, 
  into 
  the 
  

   anteriorly 
  tumid 
  vertical 
  lateral 
  lobes; 
  Uicdian 
  carina 
  percurrent, 
  but 
  

   on 
  the 
  prozona 
  rather 
  feeble 
  and 
  uniform 
  ; 
  front 
  margin 
  truncate, 
  nar- 
  

   rowly 
  subemarginate, 
  hind 
  margin 
  obtusangulate; 
  prozona 
  longitudi- 
  

   nally 
  quadrate 
  (male) 
  or 
  feebly 
  transverse 
  (female), 
  as 
  long 
  as 
  the 
  feebly 
  

   ruguloso-punctate 
  metazona. 
  Prosterual 
  spine 
  short, 
  stout, 
  appressed 
  

   cylindrical, 
  very 
  obtuse; 
  interspace 
  between 
  mesosternal 
  lobes 
  more 
  

   than 
  twice 
  as 
  long 
  as 
  broad, 
  broadening 
  posteriorly 
  (male) 
  or 
  subquad- 
  

   rate 
  (female). 
  Tegmina 
  somewhat 
  surpassing 
  the 
  tips 
  of 
  the 
  hind 
  

   femora, 
  moderately 
  broad, 
  distinctly 
  tapering, 
  rufo-fuscous, 
  feebly 
  mac- 
  

   ulate 
  with 
  black 
  along 
  the 
  middle 
  line. 
  Fore 
  and 
  middle 
  femora 
  of 
  

   male 
  rather 
  strongly 
  tumid; 
  hind 
  femora 
  pale 
  flavo-testaceous, 
  flecked 
  

   with 
  black 
  in 
  open 
  transverse 
  fasciations 
  on 
  the 
  upper 
  half, 
  at 
  base, 
  

   just 
  before, 
  and 
  somewhat 
  behind 
  the 
  middle, 
  the 
  geniculation 
  with 
  the 
  

   base 
  of 
  the 
  lower 
  genicular 
  lobe 
  black, 
  the 
  outer 
  half 
  of 
  the 
  inferior 
  

   face 
  roseate; 
  hind 
  tibiae 
  dark 
  or 
  light 
  red 
  with 
  a 
  feeble 
  fuscous 
  patel- 
  

   lar 
  spot, 
  the 
  spines 
  black 
  beyond 
  the 
  base, 
  ten 
  to 
  twelve, 
  usually 
  eleven, 
  

   in 
  number 
  in 
  the 
  outer 
  series. 
  Extremity 
  of 
  male 
  abdomen 
  clavate, 
  

   strongly 
  recurved, 
  the 
  supraanal 
  plate 
  triangular 
  with 
  rather 
  broad 
  and 
  

   subclepsydral 
  median 
  sulcus, 
  bounded 
  by 
  not 
  strongly 
  elevated 
  rounded 
  

   walls; 
  furcula 
  consisting 
  of 
  a 
  ]iair 
  of 
  rather 
  coarse, 
  parallel, 
  basally 
  

   attingent, 
  tapering, 
  acuminate, 
  flattened 
  fingers, 
  a 
  third 
  as 
  long 
  as 
  tlie 
  

   supraanal 
  plate; 
  cerci 
  subfalcate, 
  tapering 
  more 
  rapidly 
  in 
  basal 
  than 
  

   in 
  apical 
  half, 
  regularly 
  curved 
  upward, 
  compressed, 
  strongly 
  rounded 
  

   apically, 
  more 
  than 
  twice 
  as 
  long 
  as 
  median 
  breadth; 
  subgenital 
  ])late 
  

   pyramidal 
  and 
  strongly 
  elevated 
  apically, 
  the 
  apical 
  margin 
  nnicli 
  

   thickened 
  but 
  notched 
  by 
  a 
  deep 
  mesial 
  contraction, 
  which 
  separates 
  

   two 
  rounded 
  bosses. 
  

  

  Length 
  of 
  body, 
  male, 
  22 
  mm., 
  female, 
  2G 
  mm,; 
  antennae, 
  male 
  (est.), 
  

   9 
  mm., 
  female, 
  8 
  mm.; 
  tegmina, 
  male, 
  18 
  mm., 
  female, 
  20 
  mm.; 
  hind 
  

   femora, 
  male, 
  12.5 
  mm., 
  female, 
  14.5 
  mm. 
  

  

  Two 
  males, 
  1 
  female. 
  Alaska, 
  T. 
  C. 
  Mendenhall 
  (U.S.N.M.); 
  Spil- 
  

   macheen, 
  British 
  Columbia, 
  July 
  25 
  (S. 
  Henshaw). 
  

  

  