﻿4SG 
  REVISION 
  OF 
  THE 
  ELATERlD.f. 
  

  

  \.it<>, 
  elytris 
  striis 
  punctatis, 
  intcrstitiis 
  punctulatis 
  alternatim 
  paulo 
  elatioribus, 
  lineis 
  undatis 
  api- 
  

   ceque 
  fuseis. 
  Long. 
  "75. 
  

  

  Germ. 
  Zeitschr. 
  2, 
  272. 
  

  

  Elater 
  fascicularis 
  Fabr. 
  Syst. 
  El. 
  2, 
  222: 
  Oliv. 
  Ent. 
  31, 
  8; 
  tab. 
  r>, 
  fig. 
  56: 
  Herbst, 
  Kafer, 
  10, 
  

   L04; 
  tab. 
  168, 
  fig. 
  1. 
  

  

  Baltimore, 
  North 
  Carolina, 
  Texas, 
  extending 
  into 
  Mexico, 
  and, 
  according 
  to 
  authors, 
  

   found 
  also 
  in 
  South 
  America. 
  From 
  the 
  extensive 
  range 
  through 
  which 
  it 
  occurs 
  in 
  

   North 
  America, 
  it 
  is 
  scarcely 
  to 
  be 
  supposed 
  that 
  this 
  insect, 
  though 
  rare 
  with 
  us, 
  has 
  

   been 
  introduced. 
  

  

  Cryptohypnus 
  Esch. 
  (emend.) 
  

   Tli 
  is 
  genus 
  is 
  here 
  restricted 
  to 
  such 
  species 
  as 
  have 
  the 
  prosternum 
  broader 
  in 
  the 
  

   middle 
  than 
  at 
  either 
  end 
  : 
  the 
  lateral 
  suture 
  is 
  consequently 
  convex 
  outwards: 
  the 
  coxal 
  

   plates 
  are 
  suddenly 
  moderately 
  dilated 
  internally, 
  but 
  the 
  tooth 
  is 
  not 
  prominent: 
  the 
  tarsi 
  

   are 
  moderately 
  short, 
  and 
  hispid 
  with 
  long 
  bristles. 
  Our 
  species 
  may 
  form 
  two 
  groups. 
  

  

  A. 
  Prosternum 
  tobo 
  rolundato; 
  palpi 
  aiiicido 
  ultimo 
  triangidari. 
  Sp. 
  1 
  — 
  5. 
  

  

  1. 
  C. 
  si 
  lac 
  ei 
  pes, 
  olivaceo-niger, 
  subtilius 
  aureo-pubescens, 
  fronte 
  margine 
  antico 
  vix 
  elevato, 
  

   tliorace 
  antrorsum 
  angustato, 
  lateribus 
  ante 
  basin 
  obtuse 
  subangulatis, 
  minus 
  dense 
  punctato, 
  canali- 
  

   cular, 
  elytris 
  striis 
  obsolete 
  punctatis, 
  interstitiis 
  antennisque 
  basi 
  plus 
  minusve 
  testaceis. 
  Long. 
  

   •21— 
  -27. 
  

  

  Germ. 
  Zeitschr. 
  5, 
  139. 
  

  

  Common 
  in 
  the 
  northern 
  part 
  of 
  the 
  United 
  States. 
  The 
  golden 
  hair 
  is 
  more 
  dense 
  each 
  

   side 
  at 
  the 
  apex 
  of 
  the 
  elytra 
  so 
  as 
  to 
  show, 
  in 
  particular 
  lights, 
  the 
  appearance 
  of 
  a 
  faint 
  

   spot. 
  The 
  elytra 
  are 
  sometimes 
  dark 
  testaceous: 
  the 
  punctures 
  of 
  the 
  strice 
  are 
  by 
  no 
  

   means 
  obvious. 
  

  

  2. 
  C. 
  1 
  a 
  cu 
  s 
  t 
  r 
  i 
  s, 
  subteneo-niger, 
  nitidus, 
  griseo-pubescens, 
  fronte 
  margine 
  antico 
  vix 
  elevato, 
  

   tliorace 
  antrorsum 
  angustato, 
  lateribus 
  sat 
  late 
  rotundatis, 
  parcius 
  punctato, 
  canaliculato, 
  elytris 
  striis 
  

   impunctatis, 
  interstitiis 
  subconvexis, 
  basi 
  et 
  apice 
  indeterminate 
  rufo-piceis, 
  antennis 
  basi 
  pedibusque 
  

   testaceis. 
  Long. 
  *19. 
  

  

  One 
  specimen, 
  Point 
  Kcwcnaw, 
  Lake 
  Superior. 
  The* 
  posterior 
  angles 
  of 
  the 
  thorax 
  

   and 
  the 
  inflexed 
  portion 
  are 
  dark 
  testaceous. 
  This 
  species 
  resembles 
  the 
  last, 
  but 
  is 
  

   smaller, 
  and 
  the 
  sides 
  of 
  the 
  thorax 
  are 
  regularly 
  rounded. 
  From 
  the 
  next 
  species 
  it 
  is 
  

   distinguished 
  by 
  the 
  thorax 
  being 
  distinctly 
  narrowed 
  in 
  front. 
  

  

  3. 
  C. 
  p 
  i 
  c 
  e 
  s 
  c 
  e 
  n 
  s 
  , 
  piceo-testaceus, 
  supra 
  nigricans, 
  griseo-pubescens, 
  fronte 
  margine 
  antico 
  vix 
  

   elevato, 
  tliorace 
  oblongo, 
  antrorsum 
  vix 
  angustato, 
  lateribus 
  fere 
  parallelis 
  vix 
  late 
  rotundatis, 
  parcius 
  

   punctato, 
  canaliculato, 
  angulis 
  posticis 
  testaceis, 
  elytris 
  piceis 
  margine 
  dilutiore, 
  striis 
  impunctatis, 
  

   interstitiis 
  subconvexis, 
  antennarum 
  basi 
  pedibusque 
  testaceis. 
  Long. 
  - 
  20. 
  

  

  Three 
  specimens 
  from 
  the 
  north 
  side 
  of 
  Lake 
  Superior. 
  This 
  species 
  is 
  sufficiently 
  

   distinct 
  by 
  the 
  form 
  of 
  the 
  thorax 
  to 
  be 
  recognised 
  without 
  difficulty: 
  as 
  in 
  the 
  preceding 
  

   species 
  the 
  fourth 
  joint 
  of 
  the 
  antennae 
  is 
  a 
  little 
  narrower 
  than 
  the 
  following. 
  

  

  4. 
  C 
  tumescens, 
  obesus, 
  virescenti-ater, 
  cinereo-pubescens, 
  thorace 
  convexo, 
  antrorsum 
  valde 
  

   angustato, 
  lateribus 
  rotundatis, 
  dense 
  subtilius 
  punctato, 
  elytris 
  striis 
  vix 
  obsolete 
  punctatis, 
  intersti- 
  

  

  