﻿508 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.96 
  

  

  Pierce); 
  Holtville 
  (W. 
  Benedict); 
  San 
  Diego 
  County 
  (Coquillett) 
  ; 
  

   Imperial 
  County 
  (J. 
  C. 
  Bridwell); 
  Goffs, 
  Cabazon 
  (E. 
  D. 
  Ball); 
  San 
  

   Bernardino 
  County; 
  Indio 
  (Wickham); 
  Death 
  Valley; 
  Saltdale 
  (A. 
  C. 
  

   Davis); 
  Boundary 
  Canyon, 
  Amargosa 
  Mountains, 
  Inyo 
  County. 
  

   Arizona, 
  Littlefield 
  (E. 
  W. 
  Davis); 
  Fort 
  Yuma 
  (Hubbard 
  and 
  

   Schwarz). 
  Nevada, 
  Lee 
  Canyon, 
  Spring 
  Mountain; 
  Hawthorne; 
  Las 
  

   Vegas 
  (David 
  E. 
  Fox). 
  Utah, 
  St. 
  George; 
  Virgin 
  River. 
  

  

  Remarks. 
  — 
  Occasional 
  specimens 
  are 
  extremely 
  difficult 
  to 
  distinguish 
  

   from 
  E. 
  aridus 
  Fall, 
  which 
  appears 
  to 
  be 
  the 
  most 
  closely 
  related 
  species. 
  

   The 
  characters 
  given 
  in 
  the 
  key 
  will 
  serve 
  to 
  separate 
  E. 
  varius 
  from 
  

   others 
  of 
  the 
  group. 
  

  

  EUPAGODERES 
  VARIUS 
  (LeConte), 
  variety 
  PLUMBEUS 
  Horn 
  

  

  Eupagoderes 
  plumbeus 
  Horn, 
  1876, 
  p. 
  35. 
  

  

  According 
  to 
  Fall 
  (1910, 
  p. 
  193) 
  this 
  species 
  is 
  the 
  same 
  as 
  E. 
  varius 
  

   (LeConte). 
  In 
  the 
  type 
  specimen 
  of 
  E. 
  plumbeus, 
  however, 
  the 
  median 
  

   sulcus 
  of 
  the 
  rostrum 
  is 
  fine, 
  but 
  sharply 
  defined, 
  whereas 
  I 
  have 
  not 
  

   seen 
  E. 
  varius 
  with 
  more 
  than 
  a 
  bare 
  indication 
  of 
  the 
  median 
  sulcus. 
  

   The 
  paratypes 
  in 
  the 
  Horn 
  collection 
  seem 
  to 
  be 
  a 
  mixed 
  lot 
  and 
  may 
  

   not 
  all 
  represent 
  this 
  variety. 
  One 
  of 
  them 
  has 
  the 
  median 
  sulcus 
  

   almost 
  lacking. 
  A 
  specimen 
  of 
  E. 
  aeneus 
  Davis 
  is 
  also 
  included 
  in 
  the 
  

   series. 
  E. 
  plumbeus 
  Horn 
  is 
  certainly 
  very 
  closely 
  related 
  to 
  E. 
  varius 
  

   (LeConte), 
  but 
  on 
  the 
  basis 
  of 
  the 
  difference 
  given 
  above 
  it 
  seems 
  best 
  

   to 
  retain 
  the 
  name 
  for 
  the 
  present. 
  No 
  comparison 
  of 
  the 
  genitalia 
  

   has 
  been 
  made 
  but 
  it 
  seems 
  likely 
  that 
  these 
  would 
  turn 
  out 
  to 
  be 
  

   indistinguishable 
  from 
  those 
  of 
  the 
  rest 
  of 
  the 
  group. 
  

  

  Type 
  locality. 
  — 
  Owens 
  Valley, 
  Calif. 
  

  

  EUPAGODERES 
  ARIDUS 
  Fall 
  

  

  Eupagoderes 
  aridus 
  Fall, 
  1910, 
  p. 
  192. 
  

  

  All 
  species 
  of 
  the 
  decipiens 
  group 
  are 
  closely 
  related, 
  but 
  the 
  rela- 
  

   tionship 
  between 
  E. 
  varius 
  (LeConte), 
  and 
  E. 
  aridus 
  Fall 
  seems 
  to 
  be 
  

   unusually 
  close. 
  Separation 
  of 
  the 
  two 
  depends 
  largely 
  upon 
  color 
  

   and 
  general 
  appearance. 
  The 
  carinate 
  front 
  occurs 
  in 
  both 
  species, 
  

   but 
  much 
  less 
  frequently 
  in 
  aridus. 
  In 
  fact, 
  the 
  type 
  is 
  the 
  only 
  

   specimen 
  of 
  aridus 
  known 
  to 
  me 
  in 
  which 
  this 
  character 
  is 
  found. 
  I 
  

   have 
  before 
  me 
  a 
  large, 
  pink, 
  subvittate 
  specimen 
  which 
  answers 
  to 
  

   the 
  description 
  of 
  aridus 
  perfectly 
  except 
  that 
  the 
  front 
  is 
  not 
  carinate, 
  

   but, 
  this 
  character 
  being 
  so 
  far 
  unique 
  to 
  the 
  type, 
  the 
  specimen 
  is 
  

   relegated 
  to 
  the 
  aridus 
  series. 
  Another 
  specimen, 
  smaller 
  in 
  size, 
  

   gray 
  with 
  irregular 
  brown 
  mottling, 
  would 
  be 
  unhesitatingly 
  placed 
  

   with 
  varius 
  except 
  that 
  the 
  frons 
  is 
  distinctly 
  carinate. 
  E. 
  aridus 
  

   in 
  general 
  tends 
  to 
  be 
  vittate, 
  intervals 
  3, 
  5, 
  and 
  7 
  being 
  colored 
  with 
  

   black 
  or 
  plumbeous, 
  the 
  other 
  intervals 
  more 
  irregularly 
  marked 
  with 
  

  

  