﻿480 
  REVISION 
  OP 
  THE 
  ELATERII) 
  1. 
  

  

  nel, 
  which 
  is, 
  however, 
  very 
  short. 
  The 
  thorax 
  is 
  more 
  convex 
  in 
  the 
  female, 
  and 
  more 
  

   rounded 
  on 
  the 
  sides 
  than 
  in 
  the 
  male. 
  

  

  30. 
  C. 
  insipiens, 
  clongatus, 
  tcstaccus, 
  cinerco-pubcscens, 
  fronte 
  non 
  concava, 
  paulo 
  producta, 
  

   thorace 
  latitudine 
  longiore, 
  lateribus 
  anticelatc 
  rotundatis, 
  minus 
  dense 
  punctato, 
  postice 
  canaliculato, 
  

   elytris 
  subparallelis, 
  striis 
  punctatis 
  impressis, 
  interstitiis 
  punctulatis, 
  antennis 
  articulo 
  8" 
  sequcntc 
  

   paulo 
  breviore. 
  Long. 
  "23. 
  

  

  Mater 
  insipiens 
  Say, 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  6, 
  1S4. 
  

  

  Southern 
  States. 
  Distinguished 
  from 
  the 
  -following 
  hy 
  the 
  dorsal 
  channel 
  of 
  the 
  thorax, 
  

   and 
  its 
  rounded 
  sides. 
  

  

  31. 
  C. 
  t 
  en 
  c 
  11 
  us, 
  elongatus, 
  testaceus, 
  cinereo-pubescens, 
  fronte 
  non 
  concava, 
  paulo 
  producta, 
  

   thorace 
  latitudine 
  longiore, 
  lateribus 
  rectis 
  obliquis, 
  minus 
  convexo, 
  minus 
  dense 
  punctato, 
  non 
  cana- 
  

   liculato, 
  elytris 
  a 
  basi 
  subangustatis, 
  stviis 
  punctatis 
  impressis, 
  interstitiis 
  parce 
  punctulatis, 
  sutura 
  

   late 
  fusccscente. 
  Long. 
  '18 
  — 
  -23. 
  

  

  Erichson, 
  Germ. 
  Zeitscbr. 
  3, 
  114. 
  

  

  Georgia. 
  The 
  darker 
  suture 
  gives 
  this 
  insect 
  somewhat 
  the 
  appearance 
  of 
  Adrastus 
  

   recticollis, 
  but 
  a 
  very 
  slight 
  glance 
  enables 
  them 
  to 
  be 
  separated. 
  

  

  32. 
  C. 
  oregonensis, 
  nigro-piceus, 
  longior, 
  cinereo-pubescens, 
  fronte 
  non 
  concava, 
  vix 
  pro- 
  

   ducta, 
  thorace 
  latitudine 
  longiore, 
  convexiusculo, 
  lateribus 
  obliquis 
  ad 
  apicem 
  rotundatis, 
  angulis 
  pos- 
  

   ticis 
  divaricatis, 
  sat 
  grosse, 
  lateribus 
  densius 
  punctato, 
  postice 
  canaliculato, 
  elytris 
  fere 
  parallelis, 
  striis 
  

   punctatis 
  vix 
  impressis, 
  interstitiis 
  parce 
  punctulatis, 
  pedibus 
  antennisque 
  piceis, 
  his 
  articulo 
  3'° 
  se- 
  

   quenti 
  sesqui 
  breviore. 
  Long. 
  -48. 
  

  

  One 
  specimen, 
  Oregon, 
  Col. 
  M'Call. 
  Sufficiently 
  distinct 
  from 
  any 
  of 
  those 
  above 
  de- 
  

   scribed, 
  and 
  resembling 
  perhaps 
  most 
  nearly 
  C. 
  infaustus, 
  but 
  having 
  the 
  thorax 
  more 
  

   densely 
  punctured 
  and 
  more 
  oblique 
  on 
  the 
  sides, 
  and 
  the 
  third 
  joint 
  of 
  the 
  antenna? 
  hardly 
  

   more 
  than 
  half 
  the 
  size 
  of 
  the 
  fourth, 
  and 
  oidy 
  one 
  half 
  larger 
  than 
  the 
  second. 
  

  

  ~33. 
  C. 
  longulus, 
  testaceo-fuscus, 
  elongatus, 
  cinereo-pubescens, 
  fronte 
  non 
  concava, 
  thorace 
  la- 
  

   titudine 
  longiore, 
  lateribus 
  obliquis 
  antice 
  vix 
  rotundatis, 
  parce 
  subtiliter 
  punctato, 
  postice 
  breviter 
  

   canaliculato, 
  elytris 
  fere 
  parallelis 
  striis 
  punctatis 
  subimpressis, 
  interstitiis 
  parce 
  subtiliter 
  punctatis, 
  

   antennis 
  articulo 
  3'° 
  2 
  n,io 
  sesqui 
  longiore. 
  Long. 
  *37. 
  

  

  Georgia. 
  My 
  specimens 
  are 
  in 
  bad 
  condition. 
  The 
  third 
  joint 
  of 
  the 
  antennae 
  is 
  inter- 
  

   mediate 
  in 
  length 
  between 
  the 
  second 
  and 
  fourth: 
  the 
  feet 
  are 
  paler 
  than 
  the 
  body. 
  

  

  34. 
  C. 
  Sagittarius, 
  fuscus, 
  vel 
  testaceus, 
  elongatus, 
  cinereo-pubescens, 
  fronte 
  subconcava, 
  apice 
  

   subangulata, 
  thorace 
  minus 
  convexo, 
  latitudine 
  non 
  longiore, 
  antrorsum 
  angustato, 
  lateribus 
  antice 
  

   late 
  rotundatis, 
  postice 
  breviter 
  canaliculato, 
  parcius 
  sat 
  grosse 
  punctato, 
  elytris 
  a 
  basi 
  angustatis, 
  

   seriatim 
  punctatis, 
  interstitiis 
  parce 
  punctulatis, 
  antennis 
  articulo 
  3'° 
  secundo 
  sesqui 
  longiore, 
  pedibus 
  

   pallidioribus. 
  Long. 
  -54. 
  

  

  Middle 
  States, 
  rare. 
  This 
  and 
  the 
  next 
  species 
  seem 
  to 
  differ 
  from 
  all 
  the 
  preceding 
  

   ones 
  in 
  having 
  the 
  clypcus 
  almost 
  angulated 
  at 
  the 
  apex, 
  although 
  not 
  as 
  convex 
  as 
  in 
  the 
  

   species 
  of 
  Elater: 
  from 
  C. 
  corticinus, 
  macer, 
  and 
  exuberans, 
  which 
  alone 
  resemble 
  it 
  in 
  

   general 
  form, 
  it 
  is 
  easily 
  distinguished 
  by 
  the 
  characters 
  above 
  given. 
  

  

  35. 
  ('. 
  paradoxus, 
  elongatus, 
  nigro-piceus, 
  cinereo-pubescens, 
  fronte 
  subconcava, 
  apice 
  suban- 
  

  

  