﻿492 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.96 
  

  

  KEY 
  TO 
  SPECIES 
  OF 
  EUPAGODERES 
  » 
  

  

  1. 
  Dorsum 
  of 
  rostrum 
  and 
  front 
  continuous, 
  without 
  interruption 
  by 
  a 
  trans- 
  

  

  verse 
  impression 
  at 
  base 
  of 
  rostrum 
  2 
  

  

  Dorsum 
  of 
  rostrum 
  and 
  front 
  not 
  continuous, 
  but 
  interrupted 
  by 
  a 
  trans- 
  

   verse 
  impression 
  at 
  base 
  of 
  rostrum; 
  or 
  (chiefly 
  in 
  species 
  following 
  

   couplet 
  25) 
  dorsum 
  of 
  rostrum 
  and 
  front 
  with 
  separate 
  convexities 
  as 
  

   viewed 
  from 
  the 
  side, 
  giving 
  the 
  appearance 
  of 
  a 
  transverse 
  impres- 
  

   sion 
  ^ 
  10 
  

  

  2. 
  Rostrum 
  with 
  a 
  well-defined 
  median 
  sulcus 
  3 
  

  

  Rostrum 
  without 
  a 
  median 
  sulcus 
  7 
  

  

  3. 
  Pronotum 
  finely 
  and 
  sparsely 
  punctate 
  4 
  

  

  Pronotum 
  more 
  coarsely 
  and 
  closely 
  punctate 
  6 
  

  

  4. 
  Prevailing 
  color 
  of 
  scales 
  chocolate 
  brown, 
  thorax 
  and 
  elytra 
  vittate 
  with 
  

  

  white. 
  Length 
  14.4 
  to 
  21.5 
  mm 
  speciosus 
  (LeConte) 
  

  

  Prevailing 
  color 
  of 
  scales 
  white, 
  not 
  or 
  but 
  feebly 
  mottled. 
  Length 
  11 
  to 
  

  

  1 
  5 
  mm 
  nivosus 
  Fall 
  

  

  Prevailing 
  color 
  of 
  scales 
  plumbeous, 
  gray, 
  or 
  pinkish; 
  more 
  or 
  less 
  con- 
  

   spicuously 
  mottled. 
  Length 
  6.1 
  to 
  12.3 
  mm 
  5 
  

  

  5. 
  Tibiae 
  not 
  denticulate 
  within 
  sordidus 
  (LeConte) 
  ' 
  

  

  Tibiae, 
  at 
  least 
  anterior 
  ones, 
  denticulate 
  within 
  6 
  

  

  6. 
  Elytra 
  with 
  ocellate 
  plumbeous 
  spots. 
  Length 
  10-17 
  mm.marmoratus 
  Fall 
  

   Elytra 
  without 
  ocellate 
  spots; 
  length 
  12 
  mm 
  or 
  less 
  simulans 
  Van 
  Dyke 
  

  

  7. 
  Lateral 
  sulci 
  of 
  rostrum 
  short, 
  linear 
  8 
  

  

  Lateral 
  sulci 
  of 
  rostrum 
  longer, 
  arcuate, 
  convergent 
  basally 
  9 
  

  

  8. 
  Scales 
  light 
  and 
  dark 
  gray, 
  confusedly 
  mottled; 
  elytral 
  striae 
  impressed, 
  

  

  finely 
  punctate 
  decipiens 
  (LeConte) 
  

  

  Scales 
  white, 
  sometimes 
  feebly 
  mottled 
  with 
  gray; 
  elytral 
  striae 
  ex- 
  

   tremely 
  finely 
  impressed, 
  feebly 
  and 
  remotely 
  punctate, 
  almost 
  

   impunctate 
  decipiens 
  (LeConte), 
  variety 
  dunnianus 
  Casey 
  

  

  9. 
  Scales 
  whitish 
  to 
  cinereous, 
  marmorate 
  with 
  darker 
  gray.-varius 
  (LeConte) 
  

   Scales 
  pinkish 
  cinereous, 
  feebly 
  mottled 
  with 
  gray; 
  vertex 
  flattened 
  and 
  

  

  finely 
  carinate 
  in 
  the 
  type 
  aridus 
  Fall 
  

  

  10. 
  Elytral 
  striae 
  coarse, 
  with 
  round, 
  usually 
  disconnected 
  punctures; 
  intervals 
  

  

  usually 
  elevated, 
  at 
  least 
  between 
  punctures 
  of 
  adjacent 
  rows 
  11 
  

  

  Elytral 
  striae 
  fine, 
  impressed; 
  intervals 
  usually 
  flat 
  or 
  nearly 
  so, 
  and 
  

   unequal 
  in 
  width 
  16 
  

  

  11. 
  First 
  joint 
  of 
  antennal 
  funicle 
  of 
  about 
  the 
  same 
  length 
  and 
  breadth 
  as 
  the 
  

  

  second 
  lucanus 
  Horn 
  

  

  First 
  joint 
  of 
  antennal 
  funicle 
  longer 
  and 
  somewhat 
  wider 
  than 
  the 
  

   second 
  12 
  

  

  12. 
  Color 
  predominantly 
  cinereous; 
  form 
  more 
  parallel 
  13 
  

  

  Color 
  not 
  predominantly 
  cinereous, 
  form 
  more 
  robust 
  14 
  

  

  13. 
  Setae 
  long, 
  tawny, 
  numerous 
  wickhami 
  Sharp 
  

  

  Setae 
  shorter 
  and 
  sparser 
  ocellatus 
  Van 
  Dyke 
  

  

  14. 
  Disk 
  of 
  pronotum 
  finely, 
  sparsely 
  punctate 
  desertus 
  Horn 
  * 
  

  

  califomicus 
  Ting 
  

   Disk 
  of 
  pronotum 
  more 
  coarsely 
  punctate 
  15 
  

  

  15. 
  Elytra 
  greatly 
  inflated; 
  median 
  sulcus 
  of 
  rostrum 
  lacking. 
  

  

  robustus, 
  new 
  species 
  

   Elytra 
  less 
  inflated; 
  median 
  sulcus 
  of 
  rostrum 
  present, 
  argentatus 
  (LeConte) 
  

  

  ' 
  Based 
  on 
  external 
  characters. 
  

  

  » 
  See 
  note 
  at 
  end 
  of 
  Eupagoderes 
  section 
  regarding 
  E. 
  cretaceus 
  Sharp. 
  

  

  * 
  (For 
  distinctions 
  between 
  desertus 
  and 
  californicus 
  see 
  note 
  following 
  discussion 
  of 
  desertus.] 
  

  

  