﻿448 
  REVISION 
  OF 
  THE 
  ELATER1D.E 
  

  

  Two 
  specimens, 
  San 
  Diego, 
  California. 
  Although 
  differing 
  slightly 
  in 
  the 
  form 
  of 
  the 
  

   front, 
  and 
  in 
  the 
  smaller 
  size 
  of 
  the 
  fourth 
  tarsal 
  joint, 
  this 
  species 
  is 
  so 
  exact 
  a 
  miniature 
  

   of 
  C. 
  pyrrhos, 
  that 
  it 
  cannot 
  be 
  separated 
  as 
  a 
  distinct 
  genus. 
  

  

  Body 
  dark 
  fuscous, 
  covered 
  with 
  fine 
  short 
  brownish 
  gray 
  hair; 
  head 
  densely 
  punctured, 
  

   deeply 
  concave, 
  with 
  the 
  lateral 
  margins 
  indistinctly 
  uniting 
  at 
  tip; 
  eyes 
  prominent. 
  An- 
  

   tenna) 
  half 
  as 
  long 
  as 
  the 
  body, 
  second 
  joint 
  small; 
  the 
  following 
  ones 
  compressed, 
  elon- 
  

   gate, 
  very 
  slightly 
  triangular, 
  the 
  third 
  not 
  quite 
  as 
  long 
  as 
  the 
  fourth, 
  the 
  eleventh 
  hardly 
  

   acuminate. 
  Thorax 
  more 
  than 
  one-half 
  longer 
  than 
  wide, 
  sides 
  straight, 
  except 
  at 
  the 
  

   apex, 
  where 
  they 
  are 
  very 
  slightly 
  rounded; 
  posterior 
  angles 
  elongate, 
  acute, 
  slightly 
  di- 
  

   verging, 
  carina 
  sharp, 
  near 
  the 
  lateral 
  margin; 
  disc 
  densely 
  and 
  coarsely 
  punctured; 
  

   elytra 
  parallel, 
  rounded 
  posteriorly, 
  striae 
  fine, 
  subpunctulate, 
  interstices 
  very 
  slightly 
  con- 
  

   vex, 
  rugosely 
  punctulate, 
  especially 
  near 
  the 
  strise; 
  beneath 
  somewhat 
  paler, 
  legs 
  almost 
  

   testaceous, 
  tarsi 
  with 
  the 
  first 
  joint 
  decidedly 
  longer 
  than 
  the 
  second, 
  and 
  with 
  the 
  fourth 
  

   joint 
  one-half 
  as 
  long 
  as 
  the 
  third. 
  

  

  B. 
  

  

  4G. 
  C. 
  insidiosus, 
  seneo-niger, 
  longiusculus, 
  cinereo-pubescens, 
  thorace 
  minus 
  convexo, 
  angulis 
  

   anticis 
  foveatis, 
  quadrato, 
  lateribus 
  parallelis 
  antice 
  rotundatis, 
  angulis 
  posticis 
  angustis, 
  acutis 
  cari- 
  

   natis 
  divergentibus, 
  minus 
  dense 
  punctulato, 
  subcanaliculato, 
  elytris 
  densius 
  punctatis, 
  testaceis, 
  ob- 
  

   solete 
  striatis, 
  antennis 
  vix 
  serratis 
  piceis, 
  articulis 
  2 
  et 
  3 
  aequalibus 
  sequente 
  coniunctis 
  longioribus, 
  

   ano 
  pedibusque 
  fusco-testaceis. 
  Long. 
  - 
  45. 
  

  

  Lake 
  Superior, 
  rare. 
  A 
  very 
  easily 
  distinguished 
  species, 
  of 
  a 
  somewhat 
  elongate 
  form, 
  

   with 
  the 
  elytra 
  slightly 
  obliquely 
  attenuated 
  behind 
  the 
  middle. 
  The 
  first 
  joint 
  of 
  the 
  

   tarsi 
  is 
  hardly 
  longer 
  than 
  the 
  second. 
  

  

  47. 
  C. 
  falsificus, 
  feneo-niger, 
  elongatus 
  cinereo-pubescens, 
  thorace 
  latitudine 
  longiore, 
  con- 
  

   vexiusculo, 
  lateribus 
  rectis 
  parallelis 
  apice 
  rotundatis, 
  angulis 
  posticis 
  parvis 
  divaricatis 
  non 
  carinatis, 
  

   subtestaceis, 
  disco 
  subtiliter 
  punctato, 
  subcanaliculato, 
  elytris 
  testaceis, 
  tenuiter 
  striatis, 
  interstitiis 
  

   dense 
  punctatis, 
  sutura 
  infuscata, 
  pedibus 
  testaceis, 
  antennis 
  piceis, 
  vix 
  serratis, 
  basi 
  testaceis, 
  articu- 
  

   lis 
  2 
  et 
  3 
  ajqualibus 
  coniunctis 
  4 
  t0 
  longioribus. 
  Long. 
  - 
  3 
  — 
  •SS. 
  

  

  In 
  form 
  closely 
  resembles 
  the 
  preceding, 
  but 
  the 
  smaller 
  size 
  and 
  non-carinated 
  angles 
  

   of 
  the 
  thorax 
  distinguish 
  it: 
  the 
  thorax 
  at 
  the 
  apex 
  is 
  indistinctly 
  margined, 
  and 
  somewhat 
  

   impressed 
  near 
  the 
  angles: 
  the 
  first 
  joint 
  of 
  the 
  tarsi 
  is 
  conspicuously 
  longer 
  than 
  the 
  

   others. 
  

  

  In 
  case 
  the 
  small 
  spongy 
  tuft 
  at 
  the 
  tip 
  of 
  the 
  tarsal 
  joints 
  should 
  not 
  be 
  considered 
  of 
  

   sufficient 
  importance 
  to 
  warrant 
  the 
  grouping 
  of 
  the 
  species 
  here 
  adopted, 
  the 
  natural 
  

   position 
  of 
  this 
  and 
  the 
  preceding 
  species 
  would 
  be 
  in 
  Div. 
  (2,) 
  in 
  the 
  same 
  group 
  with 
  

   C. 
  in 
  flat 
  us, 
  forming 
  the 
  transition 
  between 
  that 
  in 
  C. 
  rotundicollis. 
  

  

  48. 
  C. 
  mend 
  ax, 
  piceo-asneus, 
  elongatus, 
  cinereo-pubescens, 
  thorace 
  latitudine 
  longiore, 
  con- 
  

   vexo, 
  ad 
  apiccm 
  utrinque 
  transversira 
  impresso, 
  lateribus 
  ante 
  medium 
  rotundatis, 
  angulis 
  posticis 
  

   carinatis 
  divergentibus, 
  confertim 
  punctato, 
  subcanaliculato, 
  elytris 
  striis 
  punctatis, 
  interstitiis 
  planis 
  

   rugose 
  punctulatis, 
  antennis 
  nigris, 
  vix 
  serratis, 
  articulo 
  3'° 
  2 
  IU, 
  ° 
  paulo 
  longiore, 
  coniunctis 
  4 
  to 
  longio- 
  

   ribus, 
  pedibus 
  piceis. 
  Long. 
  "41. 
  

  

  One 
  specimen, 
  Lake 
  Superior: 
  has 
  the 
  appearance 
  of 
  Limonius, 
  but 
  the 
  front 
  is 
  not 
  

  

  