﻿522 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  , 
  vol. 
  96 
  

  

  Smaller 
  (6.8 
  to 
  9.5) 
  ; 
  lateral 
  tuberosity 
  feeble; 
  tenth 
  stria 
  obliterated. 
  

  

  porosus 
  LeConte 
  

  

  6. 
  Prothorax 
  not 
  tuberculate 
  at 
  sides, 
  not 
  constricted 
  at 
  base; 
  punctures 
  of 
  

  

  elytral 
  striae 
  larger; 
  median 
  rostral 
  sulcus 
  broad, 
  with 
  a 
  median 
  carina. 
  

  

  symmetricus 
  Fall 
  

  

  Prothorax 
  with 
  lateral 
  tuberosities 
  and 
  more 
  or 
  less 
  constricted 
  at 
  base; 
  

  

  punctures 
  of 
  elytral 
  striae 
  larger; 
  median 
  sulcus 
  broad, 
  but 
  lacking 
  

  

  a 
  median 
  carina 
  7 
  

  

  7. 
  Base 
  of 
  elytra 
  produced; 
  elytral 
  striae 
  only 
  moderately 
  deep. 
  

  

  sulcirostris 
  (Say) 
  

   Base 
  of 
  elytra 
  truncate; 
  elytral 
  striae 
  very 
  deep 
  sulcipennis 
  Casey 
  

  

  8. 
  Elytral 
  intervals 
  narrow 
  and 
  subequal 
  in 
  width; 
  strial 
  punctures 
  

  

  very 
  large 
  and 
  shallow 
  9 
  

  

  Alternate 
  elytral 
  intervals 
  wider 
  and 
  elevated; 
  strial 
  punctures 
  finer 
  10 
  

  

  9. 
  Base 
  of 
  elytra 
  with 
  a 
  short, 
  necklike 
  constriction 
  collaris 
  Champion 
  

  

  Base 
  of 
  eh'tra 
  without 
  necklike 
  constriction 
  fruberosus 
  LeConte 
  

  

  10. 
  Lateral 
  tuberosities 
  of 
  prothorax 
  large, 
  prominent; 
  elytral 
  inflated; 
  punctures 
  

   of 
  elytral 
  striae 
  very 
  large, 
  unevenly 
  spaced, 
  giving 
  a 
  tuberculate 
  appear- 
  

   ance; 
  cinereous, 
  brown, 
  or 
  gray, 
  with 
  black 
  markings; 
  smaller, 
  most 
  

  

  specimens 
  between 
  6 
  and 
  9 
  mm. 
  long 
  ovipennis 
  Sharp 
  

  

  Lateral 
  tuberosities 
  smaller; 
  elj'tra 
  more 
  parallel; 
  punctures 
  of 
  striae 
  mod- 
  

   erate 
  and 
  evenly 
  spaced; 
  gray 
  or 
  brown, 
  alternate 
  elytral 
  intervals 
  usually, 
  

   and 
  suture 
  always, 
  darker; 
  larger, 
  most 
  specimens 
  between 
  9.5 
  to 
  14 
  mm. 
  

   long 
  vittatus 
  (Say) 
  

  

  OPHRYASTES 
  WICKHAMI 
  Sharp 
  

  

  Figure 
  64 
  

  

  Ophryastes 
  wickhami 
  Sharp, 
  1891, 
  p. 
  88. 
  

  

  Form 
  robust, 
  dorsum 
  rather 
  flattened, 
  sides 
  of 
  elytra 
  subparallel. 
  

   Color 
  whitish 
  through 
  buff 
  to 
  gray, 
  striae 
  cinereous; 
  three 
  vague 
  

   plumbeous 
  vittae 
  upon 
  the 
  pronotum. 
  Scaly 
  vestiture 
  predominantly 
  

   imbricate. 
  Rostrum 
  only 
  moderately 
  stout, 
  slightly 
  arched, 
  not 
  con- 
  

   stricted 
  basally 
  beneath; 
  median 
  sulcus 
  deep, 
  rounded 
  at 
  bottom, 
  

   narrowed 
  abruptly 
  at 
  a 
  deep 
  longitudinal 
  pit 
  between 
  the 
  antennal 
  

   insertions; 
  often 
  a 
  nearly 
  obsolete 
  subsidiary 
  lateral 
  sulcus 
  at 
  either 
  

   side 
  of 
  the 
  median, 
  so 
  that 
  the 
  latter 
  is 
  wide, 
  triangular, 
  the 
  base 
  of 
  

   the 
  triangle 
  toward 
  the 
  apex 
  of 
  the 
  rostrum 
  ; 
  lateral 
  sulci 
  subparallel, 
  

   well 
  defined. 
  Transverse 
  impression 
  between 
  head 
  and 
  rostrum 
  

   present 
  but 
  not 
  conspicuous; 
  head 
  and 
  rostrum 
  finely, 
  sparsely 
  

   punctate. 
  Pronotum 
  one-quarter 
  or 
  slightly 
  more 
  than 
  one-quarter 
  

   wider 
  than 
  long, 
  widest 
  at 
  or 
  slightly 
  behind 
  the 
  middle; 
  base 
  about 
  

   one-sixth 
  wider 
  than 
  apex; 
  sides 
  rounded, 
  in 
  most 
  specimens 
  

   slightly 
  tuberculate; 
  disk 
  obsoletely 
  impressed 
  at 
  middle, 
  very 
  coarsely 
  

   and 
  rather 
  closely 
  punctate. 
  Elytra 
  about 
  four-ninths 
  longer 
  than 
  

   wide, 
  widest 
  behind 
  the 
  middle, 
  usually 
  very 
  slightly 
  produced 
  at 
  

   base; 
  striae 
  usually 
  composed 
  of 
  large, 
  shallow 
  punctures 
  not 
  closely 
  

   connected, 
  although 
  in 
  some 
  specimens 
  the 
  striae 
  are 
  narrow 
  and 
  

   deeply 
  impressed; 
  elytral 
  intervals 
  convex, 
  alternate 
  intervals 
  very 
  

  

  