﻿4G4 
  ki.\ 
  rsiON 
  of 
  the 
  elaterid 
  i 
  

  

  convex) 
  always 
  distinct 
  and 
  angulated: 
  the 
  first 
  joint 
  of 
  the 
  antennae 
  short, 
  the 
  second 
  

   small, 
  the 
  third 
  longer 
  and 
  wider 
  than 
  the 
  second, 
  usually 
  much 
  narrower 
  than 
  the 
  fourth, 
  

   but 
  varying 
  in 
  this 
  respect 
  both 
  in 
  species 
  and 
  sex: 
  the 
  joints 
  1 
  — 
  10 
  triangular, 
  decreasing 
  

   slightly 
  in 
  breadth, 
  eleventh 
  oval, 
  not 
  constricted. 
  Prosternurn 
  with 
  the 
  lateral 
  suture 
  an- 
  

   teriorly 
  excavated 
  for 
  the 
  reception 
  of 
  the 
  antenna;. 
  

  

  4. 
  E. 
  rubri 
  col 
  lis, 
  atcr 
  opacus, 
  liclvo-puboscens, 
  capita 
  thoraceque 
  confertissime 
  fere 
  scabro- 
  

   punctatis, 
  obscure 
  sanguineis, 
  elytris 
  striis 
  profundis 
  punctatis, 
  interstitiis 
  convexis 
  confertim 
  punc- 
  

   tatis, 
  antennarum 
  articulo 
  3 
  io 
  prsecedente 
  duplo 
  longiore, 
  subtriangulari. 
  Long. 
  *5 
  — 
  - 
  58. 
  

  

  Eerbst, 
  Kafer, 
  10, 
  49, 
  tab. 
  162, 
  fig. 
  0, 
  (1801;) 
  Say, 
  Joum. 
  Acad. 
  Nat. 
  Sc. 
  3, 
  ITT; 
  Harris, 
  Trans. 
  

  

  Eartford 
  Soc. 
  Nat. 
  Hist. 
  71. 
  

   Elater 
  verticinus 
  Beauvois, 
  Ins. 
  214, 
  tab. 
  0, 
  fig. 
  G, 
  (1805;) 
  Say, 
  Ann. 
  Lye. 
  1, 
  2G8. 
  

   Ampedus 
  rubricollis 
  Germ. 
  Zeitschr. 
  5, 
  171. 
  

  

  Middle, 
  Southern, 
  and 
  Western 
  States; 
  not 
  rare 
  in 
  Georgia. 
  The 
  last 
  joint 
  of 
  the 
  an- 
  

   tenna; 
  is 
  slightly 
  sinuate 
  or 
  constricted 
  beyond 
  the 
  middle. 
  

  

  5. 
  E. 
  nigr 
  i 
  col 
  lis, 
  ater 
  cincreo-pubescens, 
  thorace 
  confertim 
  punctato, 
  versus 
  latera 
  fere 
  sca- 
  

   bro, 
  elytris 
  pallidis 
  subcuneatis, 
  striis 
  profundis 
  punctatis, 
  interstitiis 
  subconvexis 
  punctulatis, 
  pedibus 
  

   testaceis, 
  antennarum 
  articulo 
  3'° 
  prsecedente 
  duplo 
  maiore 
  triangulari. 
  Long. 
  -33 
  — 
  - 
  42. 
  

  

  Ilcrbst, 
  Kafer, 
  10, 
  T3, 
  tab. 
  104, 
  fig. 
  7; 
  Say, 
  Journ. 
  Acad. 
  Nat. 
  Sc. 
  3, 
  176. 
  

   Ampedus 
  nigricollis 
  Germ. 
  Zeitschr. 
  5, 
  1G6. 
  

  

  Middle 
  and 
  Southern 
  States, 
  not 
  rare. 
  The 
  base 
  of 
  the 
  antennae 
  is 
  indistinctly 
  testa- 
  

   ceous: 
  the 
  third 
  joint 
  is 
  considerably 
  dilated, 
  though 
  not 
  as 
  large 
  or 
  as 
  broad 
  as 
  the 
  fourth 
  : 
  

   the 
  last 
  joint 
  of 
  the 
  antennae 
  is 
  not 
  at 
  all 
  constricted. 
  

  

  6. 
  E. 
  linteus, 
  ater 
  cinereo-pubescens, 
  capite 
  confertissime, 
  tliorace 
  confertim 
  punctato, 
  versus 
  

   latera 
  fere 
  scabro, 
  elytris 
  cuneatis 
  pallidis, 
  puncto 
  bumerali, 
  sutura, 
  apiceque 
  nigris, 
  striis 
  profun- 
  

   dis 
  punctatis, 
  interstitiis 
  subconvexis 
  parce 
  punctatis, 
  antennarum 
  maris 
  articulo 
  3 
  1U 
  sequenti 
  fere 
  aequali. 
  

   Long. 
  -3.-.— 
  -42. 
  

  

  Say, 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  6, 
  168. 
  

   Ampedus 
  lugubris 
  Germ. 
  Zeitschr. 
  5, 
  165. 
  

  

  Middle 
  and 
  Southern 
  States, 
  and 
  Lake 
  Superior. 
  The 
  outer 
  margin 
  of 
  the 
  elytra 
  is 
  

   black. 
  This 
  species 
  is 
  subject 
  to 
  some 
  variation: 
  a 
  specimen 
  from 
  Vermont 
  has 
  the 
  legs 
  

   testaceous, 
  and 
  the 
  head 
  less 
  densely 
  punctured 
  than 
  usual: 
  in 
  other 
  specimens 
  the 
  head 
  

   is 
  almost 
  scabrous: 
  the 
  female 
  has 
  the 
  antennae 
  shorter, 
  and 
  the 
  third 
  joint 
  much 
  less 
  di- 
  

   lated 
  than 
  the 
  others. 
  Germar 
  docs 
  not 
  cite 
  Say's 
  description; 
  and 
  although 
  the 
  species 
  

   has 
  long 
  been 
  known 
  under 
  the 
  name 
  proposed 
  by 
  Beauvois, 
  I 
  cannot 
  find 
  any 
  description 
  

   in 
  his 
  writings. 
  

  

  T. 
  E. 
  discoideus, 
  ater, 
  grisco-pubescens, 
  capite 
  thoraceque 
  opacis, 
  confertim 
  punctatis, 
  versus 
  

   latera 
  fere 
  scabris, 
  elytris 
  cuneatis, 
  basi 
  margineque 
  fiavo-fulvis, 
  striis 
  profundis 
  punctatis, 
  interstitiis 
  

   subconvexis 
  rugose 
  punctatis, 
  antennarum 
  maris 
  articulo 
  3'° 
  sequenti 
  subaequali. 
  Long. 
  -42 
  — 
  -38. 
  

  

  Eabr. 
  Syst. 
  El. 
  2, 
  240; 
  Ilerbst, 
  Kafer, 
  10, 
  132. 
  

  

  Ampedus 
  discoideus 
  Germ. 
  Zeitschr. 
  5, 
  165. 
  

  

  Southern 
  States, 
  not 
  rare. 
  The 
  female 
  has 
  the 
  third 
  joint 
  of 
  the 
  antennae 
  very 
  slightly 
  

   diluted, 
  and 
  about 
  twice 
  the 
  length 
  of 
  the 
  second. 
  

  

  