﻿17(i 
  REVISION 
  OF 
  THE 
  I'.I.A 
  I'l'.UID.i: 
  

  

  tato, 
  parcius 
  in 
  disco, 
  postice 
  subcanaliculato, 
  elytris 
  subparallelis, 
  striis 
  punctatis, 
  interstitiis 
  parce 
  

   distinctius 
  punctatis 
  pedibua 
  rufo-piceis, 
  antennis 
  (maris 
  lanuginoais, 
  feminae 
  pubescentibus) 
  articulis 
  

   2 
  et 
  3 
  parvis 
  sequalibus. 
  Long. 
  ■ 
  12. 
  

  

  Georgia, 
  Pennsylvania, 
  and 
  New 
  Hampshire; 
  for 
  a 
  line 
  specimen 
  from 
  the 
  last 
  locality, 
  

   collected 
  by 
  the 
  Rev. 
  Mr. 
  Leonard, 
  I 
  am 
  indebted 
  to 
  Dr. 
  Harris. 
  The 
  whole 
  appearance 
  

   is 
  precisely 
  that 
  of 
  Elatcr 
  rubricollis, 
  but 
  the 
  thorax 
  is 
  brighter 
  coloured. 
  The 
  prester- 
  

   num 
  is 
  black; 
  the 
  carina 
  of 
  the 
  posterior 
  angles 
  of 
  the 
  thorax 
  is 
  one-fourth 
  the 
  length 
  of 
  

   the 
  thorax, 
  and 
  diverges 
  slightly. 
  Dr. 
  Harris 
  considers 
  this 
  as 
  Elater 
  collaris 
  Say: 
  for 
  the 
  

   reasons 
  which 
  compel 
  me 
  to 
  differ 
  with 
  him, 
  see 
  the 
  remarks 
  under 
  species 
  (29) 
  of 
  Elater. 
  

  

  15. 
  C. 
  s 
  cr 
  obi 
  col 
  lis, 
  piccus, 
  clongatus, 
  fusco-pubescens, 
  fronte 
  minus 
  convcxa, 
  thoracc 
  latitu- 
  

   dine 
  sublongiore, 
  antrorsum 
  sensim 
  angustato, 
  latcribus 
  vix 
  rotundatis, 
  canaliculato, 
  grosse 
  sat 
  dense 
  

   punctato, 
  elytris 
  striis 
  punctatis, 
  interstitiis 
  pcrparcc 
  punctatis, 
  antennis 
  (maris 
  lanuginosis, 
  fcininas 
  

   pubescentibus) 
  articulis 
  2 
  et 
  3 
  subajqualibus. 
  Long. 
  -u'— 
  -G7. 
  

  

  Middle 
  States 
  and 
  Lake 
  Superior. 
  Brownish 
  piceous, 
  not 
  densely 
  clothed 
  with 
  brown 
  

   pubescence. 
  Head 
  coarsely 
  and 
  densely 
  punctured, 
  front 
  slightly 
  flattened, 
  not 
  impressed. 
  

   Antenna:; 
  longer 
  than 
  the 
  head 
  and 
  thorax; 
  pubescence 
  in 
  the 
  male 
  erect, 
  in 
  the 
  female 
  de- 
  

   pressed; 
  third 
  joint 
  hardly 
  larger 
  than 
  the 
  second. 
  Thorax 
  a 
  little 
  longer 
  than 
  wide, 
  not 
  

   wider 
  than 
  the 
  elytra, 
  sides 
  oblique 
  from 
  the 
  base, 
  and 
  hardly 
  rounded; 
  disc 
  very 
  coarsely, 
  

   tolerably 
  densely 
  punctured, 
  dorsal 
  line 
  impressed 
  posteriorly, 
  obsolete 
  before 
  the 
  middle; 
  

   posterior 
  angles 
  continuing 
  the 
  line 
  of 
  the 
  side, 
  carina 
  extending 
  almost 
  to 
  the 
  middle, 
  in- 
  

   ternal 
  carina 
  wanting. 
  Elytra 
  slightly 
  narrowed 
  from 
  the 
  base 
  in 
  the 
  male, 
  nearly 
  paral- 
  

   lel 
  for 
  two-thirds 
  the 
  length 
  in 
  the 
  female, 
  stria? 
  not 
  deep, 
  coarsely 
  punctured, 
  interstices 
  

   with 
  a 
  few 
  fine 
  punctures; 
  feet 
  very 
  dark 
  castaneous. 
  

  

  A 
  male 
  specimen 
  from 
  New 
  York 
  differs 
  in 
  having 
  the 
  sides 
  of 
  the 
  thorax 
  nearly 
  pa- 
  

   rallel 
  behind 
  the 
  middle, 
  and 
  considerably 
  rounded 
  in 
  front; 
  if 
  this 
  should 
  not 
  be 
  an 
  acci- 
  

   dental 
  distortion, 
  it 
  would 
  seem 
  to 
  indicate 
  a 
  different 
  species; 
  but 
  after 
  careful 
  compari- 
  

   son 
  no 
  other 
  difference 
  could 
  be 
  discovered. 
  

  

  16. 
  C. 
  inaequalis, 
  piceus, 
  fusco-pubescens, 
  fronte 
  convexa, 
  tborace 
  subtransverso, 
  postice 
  subca- 
  

   naliculato, 
  lateribus 
  subangulato, 
  grosse 
  sat 
  dense 
  punctato, 
  elytris 
  subparallelis, 
  seriatim 
  punctatis, 
  

   interstitiis 
  distinctius 
  parce 
  punctatis, 
  antennis 
  (femina;) 
  pubescentibus 
  articulo 
  3 
  ,D 
  secundo 
  sesqui 
  

   maiore. 
  Long. 
  •70. 
  

  

  One 
  specimen 
  from 
  Point 
  Kewenaw, 
  Lake 
  Superior. 
  Brownish 
  piceous, 
  not 
  densely 
  

   clothed 
  with 
  brown 
  pubescence. 
  Head 
  coarsely 
  densely 
  punctured, 
  convex, 
  scarcely 
  im- 
  

   pressed. 
  Antenna? 
  longer 
  than 
  the 
  head 
  and 
  thorax; 
  third 
  joint 
  much 
  smaller 
  than 
  the 
  

   fourth, 
  and 
  one-half 
  larger 
  than 
  the 
  second. 
  Thorax 
  as 
  wide 
  as 
  the 
  elytra, 
  a 
  little 
  broader 
  

   than 
  long, 
  sides 
  behind 
  the 
  middle 
  almost 
  parallel, 
  then 
  strongly 
  narrowed 
  to 
  the 
  apex, 
  

   and 
  almost 
  angulated 
  on 
  the 
  sides; 
  disc 
  very 
  coarsely 
  and 
  tolerably 
  densely 
  punctured, 
  

   slightly 
  channelled 
  posteriorly; 
  posterior 
  angles 
  diverging 
  from 
  the 
  line 
  of 
  the 
  side; 
  carina 
  

   extending 
  nearly 
  midway 
  from 
  the 
  angle 
  to 
  the 
  anterior 
  margin, 
  internal 
  carina 
  hardly 
  

   visible; 
  elytra 
  nearly 
  parallel, 
  narrowed 
  for 
  the 
  posterior 
  third 
  of 
  their 
  length; 
  striae 
  not 
  

   impressed, 
  composed 
  of 
  well 
  defined 
  lines 
  of 
  punctures; 
  interstices 
  flat, 
  distantly 
  and 
  

   strongly 
  punctured; 
  beneath, 
  uniform 
  piceous 
  brown; 
  legs 
  castaneous. 
  

  

  