﻿450 
  REVISION 
  OF 
  THE 
  ELATKKIIU; 
  

  

  2. 
  A. 
  mcmnonius, 
  atro-fuscus, 
  fusco-pubescens, 
  thorace 
  non 
  transvcrso, 
  antice 
  vix 
  angustato 
  

   dense 
  punctato, 
  linea 
  Iffivi 
  dorsali 
  vix 
  distincta 
  postice 
  impressa, 
  angulis 
  posticis 
  parvis 
  nun 
  divergen- 
  

   tibus, 
  elytris 
  confertim 
  punctatis, 
  striis 
  distincte 
  punctatis, 
  antennis 
  pedibusque 
  piceo-rufis. 
  Long. 
  

   •63— 
  -82. 
  

  

  Elater 
  nemnonius 
  (err. 
  typ.) 
  Ilerbst, 
  Klifcr, 
  10, 
  29, 
  tab. 
  160, 
  fig. 
  10: 
  Say, 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  

   6, 
  176. 
  

  

  Pedetes 
  (AsapJies) 
  ruficomis 
  Kirby, 
  Fauna 
  Bor. 
  Am. 
  140. 
  

  

  .Maine, 
  Ohio, 
  Pennsylvania, 
  Alabama. 
  The 
  thorax 
  of 
  the 
  female 
  is 
  more 
  convex 
  than 
  

   the 
  male, 
  and 
  more 
  rounded 
  on 
  the 
  sides. 
  The 
  interstices 
  of 
  the 
  elytra 
  arc 
  usually 
  slightly 
  

   convex, 
  but 
  one 
  individual 
  from 
  Mr. 
  Guex 
  has 
  them 
  entirely 
  flat. 
  The 
  carinas 
  of 
  the 
  pos- 
  

   terior 
  angles 
  of 
  the 
  thorax 
  arc 
  parallel 
  with 
  the 
  margin 
  and 
  very 
  strongly 
  marked. 
  

  

  3. 
  A. 
  baridius, 
  nigro-fuscus, 
  fusco-pubescens, 
  thorace 
  subtransverso, 
  antice 
  angustato, 
  lateribus 
  

   ante 
  meilium 
  valde 
  rotundatis, 
  dense 
  punctato, 
  linea 
  dorsali 
  postice 
  subimpressa, 
  angulis 
  posticis 
  non 
  

   divaricatis, 
  elytris 
  striis 
  punctatis, 
  interstitiis 
  subconvexis 
  confertim 
  punctatis, 
  antennis 
  pedibusque 
  

   rufo-piceis. 
  Long. 
  -90. 
  

  

  Elater 
  baridius 
  Say, 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  6, 
  176. 
  

   Hemicrepidius 
  Thomasi 
  Germ. 
  Zeitschr. 
  1, 
  213. 
  

  

  Maine 
  to 
  Georgia. 
  I 
  was 
  at 
  first 
  inclined 
  to 
  believe 
  this 
  merely 
  a 
  variety 
  of 
  the 
  pre- 
  

   ceding, 
  but 
  as 
  the 
  difference 
  in 
  the 
  form 
  of 
  the 
  thorax 
  cannot 
  be 
  altogether 
  sexual, 
  they 
  

   must 
  be 
  considered 
  as 
  distinct: 
  the 
  carina? 
  of 
  the 
  posterior 
  angles 
  of 
  the 
  thorax, 
  as 
  in 
  the 
  

   preceding, 
  are 
  very 
  strong 
  and 
  parallel 
  with 
  the 
  margin. 
  

  

  4. 
  A. 
  mor 
  io, 
  niger, 
  nitidus, 
  parce 
  pubescens, 
  thorace 
  latitudine 
  non 
  longiore 
  parce 
  punctato, 
  pos- 
  

   tice 
  canaliculato, 
  angulis 
  posticis 
  non 
  divergentibus, 
  carina 
  divergente, 
  elytris 
  striis 
  profundis 
  punc- 
  

   tatis, 
  interstitiis 
  subconvexis, 
  minus 
  dense 
  punctulatis. 
  Long. 
  -70. 
  

  

  One 
  female, 
  Oregon, 
  Col. 
  M'Call: 
  the 
  sides 
  of 
  the 
  thorax 
  are 
  broadly 
  rounded 
  before 
  

   the 
  middle. 
  This 
  species 
  has 
  the 
  robust 
  form 
  of 
  A. 
  memnonius, 
  but 
  the 
  thorax 
  is 
  

   quite 
  finely 
  and 
  thinly 
  punctured 
  at 
  the 
  middle, 
  and 
  more 
  coarsely 
  and 
  densely 
  at 
  the 
  sides: 
  

   the 
  carinaa 
  of 
  the 
  posterior 
  angles 
  of 
  the 
  thorax 
  are 
  not 
  parallel 
  with 
  the 
  sides. 
  The 
  stria? 
  

   of 
  the 
  elytra 
  are 
  more 
  strongly 
  punctured 
  before 
  the 
  middle, 
  and 
  the 
  outer 
  striae 
  are 
  deeper 
  

   than 
  those 
  towards 
  the 
  suture: 
  the 
  interstices 
  are 
  moderately 
  convex, 
  finely 
  not 
  densely 
  

   punctulatc; 
  from 
  each 
  puncture 
  proceeds 
  a 
  short 
  blackish 
  hair, 
  forming 
  an 
  indistinct 
  pu- 
  

   bescence. 
  

  

  5. 
  A. 
  aereus, 
  elongatus, 
  nigro-piceus, 
  ajnescens, 
  cinereo-pubescens, 
  fronte 
  paulo 
  concava, 
  thorace 
  

   subtilius 
  punctato, 
  densius 
  et 
  subtilius 
  versus 
  latera, 
  latitudine 
  longiore, 
  angulis 
  posticis 
  subdivari- 
  

   catis, 
  elytris 
  striis 
  punctatis, 
  interstitiis 
  subconvexis, 
  punctatis, 
  pedibus 
  rufis 
  vel 
  piceis, 
  antennis 
  nigro- 
  

   piceis, 
  articulo 
  3 
  io 
  modicc 
  dilatato. 
  Long. 
  -43 
  — 
  -45. 
  

  

  Athous 
  sereus 
  Melsheimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  15G. 
  ( 
  ? 
  ) 
  

   Athous 
  seneolus 
  Melsheimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  156. 
  ( 
  T 
  ) 
  

  

  Middle 
  and 
  Southern 
  States. 
  The 
  male 
  resembles 
  very 
  much 
  in 
  appearance 
  Corym- 
  

   bitcs 
  appressifrons: 
  the 
  sides 
  of 
  the 
  thorax 
  are 
  very 
  slightly 
  rounded, 
  and 
  the 
  third 
  joint 
  

   of 
  the 
  antennas, 
  though 
  narrower, 
  is 
  as 
  long 
  as 
  the 
  fourth. 
  The 
  female 
  has 
  the 
  thorax 
  nar- 
  

   rowed 
  and 
  rounded 
  before 
  the 
  middle, 
  and 
  the 
  third 
  joint 
  of 
  the 
  antenna? 
  about 
  two-thirds 
  

  

  