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  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  

  

  rather 
  short 
  and 
  subequal, 
  faintly 
  constricted 
  mesially, 
  more 
  or 
  less 
  

   faintly 
  punctate 
  with 
  fuscous 
  above, 
  the 
  lateral 
  lobes 
  with 
  a 
  broad 
  

   piceous 
  belt 
  crossing 
  the 
  prozona 
  above, 
  and 
  sometimes 
  continued 
  across 
  

   the 
  metazona, 
  but 
  usually 
  ol)solete 
  or 
  subobsolete 
  there, 
  sometimes 
  

   fading, 
  sometimes 
  sharpl^^ 
  defined 
  below, 
  the 
  lower 
  portion 
  of 
  the 
  lobes 
  

   usually 
  lighter 
  colored 
  than 
  elsewhere, 
  repeating 
  the 
  color 
  of 
  the 
  genae; 
  

   front 
  margin 
  subtruncate, 
  hind 
  margin 
  very 
  broadly 
  rotaiidato-angu- 
  

   late, 
  ill 
  some 
  females 
  with 
  no 
  sign 
  of 
  angulation 
  but 
  very 
  broadly 
  

   convex; 
  median 
  carina 
  percurrent 
  but 
  generally 
  feebler 
  on 
  the 
  prozona; 
  

   lateral 
  carinae 
  marked 
  by 
  a 
  distinct 
  though 
  rounded 
  angle; 
  prozona 
  

   distinctly 
  longitudinal 
  (male) 
  or 
  subquadrate 
  (female), 
  one-fourth 
  to 
  

   one-third 
  longer 
  than 
  the 
  closely 
  punctate 
  metazona. 
  Prosternal 
  si)ine 
  

   short 
  (female) 
  or 
  very 
  short 
  (male), 
  conical, 
  erect; 
  interspace 
  between 
  

   the 
  mesosternal 
  lobes 
  nearly 
  twice 
  as 
  long 
  as 
  broad 
  (male) 
  or 
  slightly 
  

   longer 
  than 
  broad 
  (female). 
  Tegmina 
  ovate, 
  well 
  rounded, 
  much 
  less 
  

   than 
  twice 
  as 
  long 
  as 
  broad, 
  rather 
  shorter 
  than 
  tbe 
  pronotum, 
  brown- 
  

   ish 
  fuscous, 
  generally 
  cinereous 
  in 
  the 
  anal 
  field. 
  Hind 
  femora 
  fusco- 
  

   ferruginous 
  or 
  fusco 
  testaceous, 
  twice 
  banded 
  rather 
  obliquely 
  with 
  

   black, 
  which 
  is 
  confluent 
  on 
  the 
  lower 
  half 
  of 
  the 
  outer 
  face, 
  so 
  as 
  to 
  leave 
  

   above 
  a 
  large 
  basal 
  and 
  median 
  patch 
  of 
  the 
  lighter 
  color; 
  the 
  lower 
  

   face 
  is 
  reddish, 
  and 
  the 
  genicular 
  arc 
  fuscous; 
  hind 
  tibiae 
  glaucous, 
  

   often 
  mottled 
  or 
  suffused 
  with 
  luteous 
  toward 
  the 
  base, 
  and 
  generally 
  

   with 
  a 
  basal 
  anulus 
  of 
  the 
  same, 
  the 
  spines 
  black 
  in 
  their 
  apical 
  half, 
  

   ten 
  to 
  twelve 
  in 
  number 
  in 
  the 
  outer 
  series. 
  Extremity 
  of 
  male 
  abdo- 
  

   men 
  oblong 
  clavate, 
  well 
  rounded, 
  well 
  upturned, 
  the 
  supraanal 
  plate 
  

   triangular 
  with 
  slightly 
  convex 
  sides 
  and 
  rectaugulate 
  apex, 
  the 
  median 
  

   sulcus 
  slender, 
  not 
  very 
  deep, 
  and 
  percurrent, 
  bounded 
  by 
  sharp 
  

   but 
  not 
  very 
  high 
  walls; 
  furcula 
  consisting 
  of 
  a 
  pair 
  of 
  elongate, 
  

   slender, 
  parallel, 
  straight 
  denticulations 
  or 
  fingers 
  as 
  long 
  as 
  the 
  last 
  

   dorsal 
  segment, 
  resting 
  outside 
  the 
  ridges 
  of 
  the 
  supraanal 
  plate; 
  

   cerci 
  enlarging 
  slightly 
  at 
  the 
  base, 
  then 
  gradually 
  enlarging 
  in 
  the 
  

   basal 
  half, 
  beyond 
  equal, 
  apically 
  well 
  rounded, 
  the 
  whole 
  forming 
  a 
  

   broad, 
  much 
  incurved 
  and 
  slightly 
  torqueate 
  plate, 
  whose 
  apical 
  half 
  

   is 
  so 
  deeply 
  sulcate 
  that 
  its 
  longitudinal 
  halves 
  are 
  nearly 
  at 
  right 
  

   angles; 
  infracercal 
  plates 
  concealed; 
  subgenital 
  plate 
  broad, 
  fully 
  as 
  

   broad 
  as 
  long, 
  the 
  lateral 
  margins 
  abruptly 
  elevated 
  a 
  little 
  apically, 
  

   but 
  not 
  prolonged 
  posteriorly, 
  the 
  apical 
  margin 
  strongly 
  rounded, 
  

   entire. 
  

  

  Length 
  of 
  body, 
  male, 
  17 
  mm., 
  female, 
  20 
  mm.; 
  antennae, 
  male, 
  9 
  

   mm., 
  female, 
  mm.; 
  tegmina, 
  nmle, 
  3 
  mm., 
  female, 
  4.25 
  mm.; 
  hind 
  

   femora, 
  male, 
  10 
  mm., 
  female, 
  11 
  mm. 
  

  

  Six 
  males, 
  17 
  females. 
  Yuba 
  County, 
  California 
  (L. 
  T>runer); 
  Moun- 
  

   tains 
  near 
  Lake 
  Tahoe, 
  Placer 
  County, 
  California, 
  October, 
  Heushaw, 
  

   Wheeler's 
  expedition, 
  1876; 
  Kern 
  County, 
  California, 
  October 
  (U.S. 
  

   KM.); 
  Kern 
  County, 
  California, 
  Coquillett 
  (T.S.N.M.— 
  Riley 
  collec- 
  

   tion); 
  Los 
  Angeles 
  County, 
  California, 
  May, 
  Se^jtember, 
  Coquillett 
  

   (same). 
  

  

  