﻿262 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  quadrate 
  or 
  subqiiadrate, 
  slightly 
  louger 
  tbau 
  the 
  closely 
  punctate 
  meta- 
  

   zoua, 
  the 
  sulcus 
  between 
  them 
  very 
  broadly 
  obtusangulate 
  by 
  wide 
  emar- 
  

   giuation 
  of 
  the 
  prozoua. 
  Prosternal 
  spine 
  long, 
  subcylindrical, 
  blunt, 
  

   erect; 
  interspace 
  between 
  mesosternal 
  lobes 
  twice 
  as 
  long 
  as 
  broad 
  

   (male) 
  or 
  a 
  little 
  transverse, 
  narrower 
  than 
  the 
  lobes 
  (female), 
  the 
  

   metasternal 
  lobes 
  subattingent 
  (male) 
  or 
  tolerably 
  distant 
  (female). 
  

   Tegmina 
  slightly 
  overlapping 
  (male) 
  or 
  attingent 
  (female), 
  ovate, 
  rather 
  

   broad, 
  shorter 
  than 
  the 
  prouotnm, 
  uniform 
  brownish 
  fuscous. 
  Femora 
  

   rufescent 
  or 
  fusco-luteous, 
  the 
  fore 
  pair 
  and 
  to 
  some 
  extent 
  the 
  middle 
  

   pair 
  tumescent 
  in 
  the 
  male, 
  the 
  hind 
  pair 
  more 
  or 
  less 
  but 
  obscurely 
  

   infuscated 
  in 
  premedian 
  and 
  postmedian 
  bands, 
  which 
  are 
  angulate 
  on 
  

   the 
  outer 
  face 
  and 
  generally 
  more 
  or 
  less 
  coufused; 
  their 
  lower 
  face, 
  

   es])ecially 
  exteriorly, 
  more 
  or 
  less 
  ferruginous, 
  the 
  geniculation 
  mostly 
  

   fuscous; 
  hind 
  tibiae 
  generally 
  dull 
  red, 
  more 
  or 
  less 
  feebly 
  flecked 
  or 
  

   obscured 
  basally 
  Avith 
  fuscous, 
  sometimes 
  plumbeo-glaucous, 
  the 
  spines 
  

   rather 
  short 
  and 
  black 
  throughout, 
  eleven 
  to 
  twelve, 
  usually 
  eleven, 
  

   in 
  number 
  in 
  the 
  outer 
  series. 
  Extremity 
  of 
  male 
  abdomen 
  strongly 
  

   clavate, 
  much 
  recurved, 
  the 
  snpraanal 
  plate 
  abruptly 
  and 
  obliquely 
  con- 
  

   tracted 
  laterally 
  in 
  the 
  apical 
  half 
  so 
  as 
  to 
  make 
  the 
  shape 
  somewhat 
  

   clypeate, 
  the 
  lateral 
  margins 
  raised 
  only 
  in 
  the 
  apical 
  half 
  and 
  here 
  form- 
  

   ing 
  between 
  them 
  a 
  dorsal 
  channel 
  which 
  nearly 
  continues, 
  but 
  is 
  a 
  little 
  

   wider 
  than, 
  the 
  basal 
  median 
  sulcus, 
  which 
  is 
  rather 
  deeply 
  impressed 
  

   but 
  between 
  walls 
  which 
  rise 
  but 
  little 
  above 
  the 
  otherwise 
  nearly 
  

   plane 
  surface 
  ; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  minute, 
  sometimes 
  scarcely 
  

   perceptible, 
  distant 
  denticulations 
  on 
  the 
  outer 
  side 
  of 
  the 
  submedian 
  

   ridges 
  of 
  the 
  supraaual 
  plate; 
  cerci 
  large 
  and 
  stout, 
  elongated, 
  com- 
  

   pressed 
  laminae, 
  mesially 
  narrowed 
  so 
  that 
  the 
  apical 
  portion 
  is 
  snb- 
  

   spatulate 
  though 
  not 
  so 
  bi'oad 
  as 
  the 
  base, 
  gently 
  incurved, 
  the 
  tip 
  

   rounded 
  but 
  distinctly 
  jiroduced 
  interiorly, 
  reaching 
  the 
  tip 
  of 
  the 
  

   supraaual 
  plate; 
  subgenital 
  plate 
  moderately 
  broad, 
  a 
  little 
  longer 
  

   than 
  broad, 
  the 
  lateral 
  and 
  apical 
  margins 
  slightly 
  flaring, 
  the 
  latter 
  

   elevated, 
  well 
  rounded 
  and 
  entire. 
  

  

  Length 
  of 
  body, 
  male, 
  20 
  mm., 
  female, 
  25.5 
  mm.; 
  antennae, 
  male, 
  8.5 
  

   mm., 
  female, 
  10 
  mm.; 
  tegmina, 
  male, 
  5 
  mm., 
  female, 
  5.75 
  mm.; 
  hind 
  

   femora, 
  male, 
  12 
  mm., 
  female, 
  13.75 
  mm. 
  

  

  Ten 
  males, 
  14 
  females. 
  Portland, 
  Multnomah 
  County, 
  Oregon, 
  l*ack- 
  

   ard 
  (U.S.X.M.— 
  Eiley 
  collection; 
  S. 
  H. 
  Scudder); 
  Oregon 
  City, 
  Clack- 
  

   amas 
  County, 
  Oregon, 
  July, 
  VV. 
  G. 
  W. 
  Harford; 
  Soda 
  Springs, 
  Yakima 
  

   County, 
  Washiugton, 
  Wickham 
  (L. 
  Bruuer); 
  Loon 
  Lake, 
  Colville 
  Val- 
  

   ley, 
  Washington, 
  July 
  23, 
  S. 
  Henshaw 
  (Museum 
  Comparative 
  Zoology). 
  

  

  It 
  is 
  stated 
  by 
  Bruuer 
  that 
  this 
  species 
  is 
  ^'to 
  be 
  met 
  with 
  in 
  the 
  

   mountains 
  of 
  Montana, 
  Idaho, 
  and 
  Wyoming," 
  and 
  it 
  ''appears 
  to 
  

   abound 
  only 
  where 
  two 
  or 
  three 
  particular 
  plants 
  are 
  met 
  with, 
  one 
  of 
  

   which 
  is 
  a 
  species 
  of 
  geranium." 
  

  

  The 
  female 
  of 
  this 
  species 
  closely 
  resembles 
  the 
  same 
  sex 
  of 
  M. 
  borcl<ii,, 
  

   but 
  has 
  relatively 
  longer 
  antennae, 
  about 
  as 
  long 
  as 
  those 
  of 
  the 
  male, 
  

   and 
  the 
  tegmina 
  are 
  shorter 
  and 
  more 
  strongly 
  rounded 
  at 
  tip. 
  

  

  