﻿OF 
  THE 
  UNITED 
  STATES. 
  497 
  

  

  A. 
  Tarsi 
  et 
  ungues 
  simplices. 
  Sp. 
  1 
  — 
  11. 
  

  

  s 
  1. 
  C. 
  e 
  r 
  y 
  t 
  h 
  r 
  o 
  p 
  u 
  s 
  , 
  elongatus, 
  fusco-nigor, 
  cinereo-pubcscens, 
  thorace 
  sequaliter 
  fusco-cinereo 
  pu- 
  

   bescente, 
  latitudine 
  longioro, 
  convcxo, 
  antrorsum 
  angustato, 
  postice 
  breviter 
  canalicubito, 
  lateribus 
  late 
  

   rotundatis 
  subtilissiine 
  punctulato, 
  elytris 
  striis 
  subtilibus, 
  fortius 
  punctatia, 
  interstitiis 
  paulo 
  convexis, 
  

   pedibus 
  antennarumque 
  basi 
  rufis. 
  Long. 
  -37 
  — 
  4. 
  

  

  Variat, 
  antennis 
  totis 
  rufis. 
  

  

  Ericbson, 
  Germ. 
  Zeitschr. 
  2, 
  293. 
  

  

  0. 
  amietus 
  Melsheimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  158. 
  

  

  ? 
  Elatcr 
  eonvexus 
  Say, 
  Journ. 
  Acad. 
  Nat. 
  Sc. 
  3, 
  169. 
  

  

  Middle 
  and 
  Southern 
  States, 
  not 
  common. 
  Distinguished 
  from 
  the 
  next 
  by 
  the 
  pubes- 
  

   cence 
  of 
  the 
  thorax 
  being 
  equal 
  over 
  its 
  whole 
  surface, 
  and 
  by 
  the 
  more 
  distinct 
  fine 
  punc- 
  

   tures 
  with 
  which 
  it 
  is 
  covered; 
  the 
  posterior 
  angles 
  are 
  more 
  divergent 
  in 
  some 
  speci- 
  

   mens 
  than 
  in 
  others. 
  The 
  elytra, 
  as 
  in 
  the 
  next, 
  are 
  somewhat 
  pointed 
  behind, 
  with 
  the 
  

   interstices 
  almost 
  imperceptibly 
  punctured. 
  In 
  the 
  females 
  the 
  thorax 
  is 
  more 
  parallel 
  on 
  

   the 
  sides, 
  and 
  more 
  suddenly 
  rounded 
  anteriorly. 
  

  

  2. 
  C. 
  saturninus, 
  elongatus 
  fusco-niger, 
  clnereo-pubescens, 
  thorace 
  antice 
  distinctius 
  postice 
  

   tenuissime 
  cinereo-pubescente, 
  antrorsum 
  angustato, 
  latitudine 
  fere 
  longiore 
  lateribus 
  rotundatis, 
  con- 
  

   fertissime 
  subtilissime 
  alutaceo-punctulato, 
  postice 
  breviter 
  canalicular, 
  elytris 
  striis 
  subtilibus 
  fortius 
  

   punctatis, 
  interstitiis 
  paulo 
  convexis, 
  antenuarum 
  basi 
  pedibusque 
  rufis. 
  Long. 
  -35. 
  

  

  One 
  specimen, 
  South 
  Carolina, 
  Mr. 
  Zimmerman. 
  Except 
  the 
  differences 
  above 
  pointed 
  

   out, 
  this 
  species 
  has 
  all 
  the 
  characters 
  of 
  the 
  preceding. 
  The 
  punctures 
  of 
  the 
  thorax 
  are 
  

   so 
  fine 
  and 
  close, 
  that 
  the 
  lustre 
  is 
  dull 
  and 
  bluish 
  on 
  that 
  portion 
  of 
  the 
  body. 
  

  

  3. 
  C. 
  c 
  a 
  r 
  d 
  i 
  s 
  c 
  e 
  , 
  niger, 
  subopacus, 
  tenuiter 
  pallido 
  pubescens, 
  thorace 
  latitudine 
  fere 
  longiore, 
  

   tumido, 
  antrorsum 
  angustato, 
  lateribus 
  rotundatis 
  postice 
  infiexis, 
  confertiin 
  punctulato, 
  striis 
  basali- 
  

   bus 
  elongatis, 
  exaratis, 
  elytris 
  ochrco 
  bi- 
  vel 
  quadri-inaculatis, 
  postice 
  acutis, 
  striis 
  profundis 
  punctatis, 
  

   interstitiis 
  convexis 
  dense 
  punctulatis. 
  Long. 
  -28. 
  

  

  Mater 
  cardisce 
  Say, 
  Trans. 
  Am. 
  Phil. 
  Soc 
  0, 
  169 
  ; 
  Journ. 
  Acad. 
  Nat. 
  Sc 
  3, 
  169. 
  

  

  Middle 
  States, 
  on 
  the 
  sea 
  shore. 
  The 
  anterior 
  spots 
  of 
  the 
  elytra 
  arc 
  about 
  the 
  middle, 
  

   the 
  posterior 
  about 
  one-fourth 
  from 
  the 
  apex; 
  the 
  latter 
  form 
  an 
  angulated 
  fascia. 
  Some- 
  

   times 
  the 
  anterior 
  spots 
  are 
  wanting, 
  and 
  sometimes 
  the 
  posterior: 
  varieties 
  probably 
  oc- 
  

   cur 
  with 
  immaculate 
  elytra. 
  

  

  4. 
  0. 
  Dejeanii, 
  plumbeo-niger, 
  dense 
  cinereo-fusco-pubescens, 
  thorace 
  latitudine 
  sublongiore 
  

   convexo, 
  dense 
  punctulato, 
  lateribus 
  late 
  rotundatis, 
  elytris 
  striis 
  postice 
  exaratis, 
  interstitiis 
  con- 
  

   vexis, 
  dense 
  punctulatis, 
  postice 
  acutis, 
  maculis 
  duabus 
  obsolete 
  testaceis, 
  pedibus 
  piceis, 
  tibiis 
  tarsis- 
  

   que 
  testaceis. 
  Long. 
  *25. 
  

  

  C. 
  conve.vusl'Erichson: 
  Germ. 
  Zeitschr. 
  2, 
  289. 
  

  

  One 
  specimen, 
  Georgia. 
  Erichson, 
  probably 
  misled 
  by 
  Dejean's 
  collection, 
  has 
  con- 
  

   founded 
  this 
  with 
  Elater 
  eonvexus 
  Say, 
  Journ. 
  Acad. 
  Nat. 
  Sc. 
  3, 
  169: 
  a 
  very 
  different 
  

   species 
  which, 
  by 
  description, 
  (having 
  rufous 
  antenna 
  3 
  ,) 
  is 
  nearly 
  allied 
  to 
  C. 
  erythro- 
  

   pus. 
  This 
  species 
  differs 
  from 
  the 
  preceding 
  by 
  the 
  thorax 
  being 
  longer, 
  less 
  rounded 
  

   on 
  the 
  sides, 
  and 
  more 
  densely 
  pubescent. 
  

  

  