﻿OF 
  THE 
  UNITED 
  STATES. 
  467 
  

  

  15. 
  E. 
  socer, 
  ater, 
  griseo-pubescens, 
  thorace 
  confcrtim 
  punctato, 
  postice 
  subcanaliculato, 
  

   elytris 
  striia 
  profundis 
  punctatis, 
  interstitiis 
  subconvexis 
  confertim 
  punctatis, 
  antennis 
  nigris 
  articulo 
  

   3 
  io 
  secundo 
  fere 
  duplo 
  longiore, 
  pedibus 
  piceis. 
  Long. 
  "52. 
  

  

  One 
  specimen, 
  Pennsylvania. 
  The 
  thorax 
  is 
  longer 
  than 
  wide, 
  very 
  slightly 
  narrowed 
  

   and 
  not 
  rounded 
  from 
  the 
  base 
  to 
  the 
  middle, 
  then 
  narrowed 
  and 
  broadly 
  rounded 
  to 
  the 
  tip: 
  

   the 
  elytra 
  are 
  slightly 
  narrowed 
  from 
  the 
  very 
  base; 
  the 
  punctures 
  of 
  the 
  interstices 
  are 
  

   close 
  and 
  distinct. 
  Differs 
  from 
  the 
  preceding 
  by 
  the 
  third 
  joint 
  of 
  the 
  antenna? 
  being 
  

   longer 
  than 
  the 
  second, 
  and 
  by 
  the 
  form 
  of 
  the 
  thorax: 
  from 
  the 
  next 
  by 
  the 
  much 
  shorter 
  

   pubescence 
  and 
  also 
  by 
  the 
  form 
  of 
  the 
  thorax. 
  

  

  16. 
  E. 
  impolitus, 
  ater, 
  longius 
  helvo-pubescens, 
  thorace 
  breviusculo, 
  confertim 
  punctato, 
  pos- 
  

   tice 
  canaliculate, 
  elytris 
  striis 
  profundis 
  punctatis, 
  interstitiis 
  confertim 
  rugose 
  punctatis, 
  antennis 
  

   nigris, 
  basi 
  testaceis, 
  articulo 
  3 
  io 
  sccundo 
  fere 
  duplo 
  longiore, 
  pedibus 
  ferrugineis. 
  Long. 
  *47. 
  

  

  Melsbeimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  180. 
  

  

  Pennsylvania, 
  rare. 
  The 
  thorax 
  is 
  a 
  little 
  wider 
  than 
  long, 
  narrowed 
  and 
  rounded 
  from 
  

   the 
  very 
  base; 
  the 
  punctuation 
  is 
  a 
  little 
  finer, 
  and 
  the 
  pubescence 
  considerably 
  longer 
  

   than 
  in 
  the 
  preceding 
  species. 
  The 
  elytra 
  are 
  slightly 
  narrowed 
  from 
  the 
  very 
  base. 
  

   The 
  legs 
  are 
  rufo-testaceous, 
  or 
  ferruginous. 
  

  

  17. 
  E. 
  hep 
  a 
  t 
  icus, 
  piceo-ater, 
  helvo-pubescens, 
  thorace 
  breviusculo, 
  confertim 
  punctato, 
  elytris 
  

   striis 
  minus 
  profundis 
  punctatis, 
  interstitiis 
  planiusculis 
  subtilius 
  .rugose 
  punctatis, 
  antennis 
  pedibus- 
  

   que 
  fusco-testaceis 
  articulo 
  3 
  i0 
  secundo 
  fere 
  duplo 
  longiore. 
  Long. 
  '-IS. 
  

  

  Melsheimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  160. 
  

  

  Pennsylvania 
  and 
  Vermont. 
  The 
  antennas 
  are 
  more 
  slender 
  than 
  in 
  the 
  neighbouring 
  

   species; 
  the 
  thorax 
  is 
  considerably 
  rounded 
  on 
  the 
  sides, 
  but 
  the 
  narrowing 
  is 
  scarcely 
  

   perceptible 
  from 
  the 
  base 
  to 
  the 
  middle; 
  it 
  is 
  less 
  convex 
  than 
  usual 
  and 
  not 
  at 
  all 
  chan- 
  

   nelled 
  posteriorly; 
  the 
  posterior 
  angles 
  in 
  Dr. 
  Melsheimer's 
  type 
  continue 
  the 
  line 
  of 
  the 
  

   sides, 
  while 
  in 
  my 
  specimen 
  they 
  are 
  slightly 
  divergent. 
  The 
  elytra 
  are 
  parallel 
  to 
  the 
  

   middle, 
  very 
  slightly 
  narrower 
  than 
  the 
  thorax; 
  the 
  striae 
  are 
  not 
  deep, 
  the 
  interstices 
  

   are 
  not 
  convex, 
  finely 
  and 
  not 
  densely 
  rugosely 
  punctured. 
  

  

  18. 
  E. 
  molestus, 
  ater, 
  helvo-pubescens, 
  thorace 
  oblongo 
  antice 
  angustato, 
  confertim 
  punctato, 
  

   postice 
  subcanaliculato, 
  elytris 
  antice 
  parallelis, 
  apice 
  obtusiusculis, 
  striis 
  punctatis, 
  interstitiis 
  con- 
  

   fertim 
  rugose 
  punctatis, 
  antennis 
  basi 
  testaceis, 
  articulis 
  2 
  et 
  3 
  subivqualibus, 
  pedibus 
  testaceo-piceis. 
  

   Long. 
  '35. 
  

  

  A 
  specimen 
  found 
  at 
  Lake 
  Superior; 
  another 
  with 
  paler 
  legs 
  brought 
  from 
  Maine 
  by 
  

   Prof. 
  Guyot. 
  The 
  thorax 
  is 
  a 
  little 
  longer 
  than 
  wide, 
  narrowed 
  and 
  rounded 
  before 
  the 
  

   middle, 
  with 
  the 
  sides 
  parallel 
  posteriorly. 
  The 
  elytra 
  are 
  parallel 
  as 
  far 
  as 
  the 
  middle, 
  

   then 
  obtusely 
  rounded 
  to 
  the 
  apex; 
  the 
  strias 
  are 
  narrow 
  and 
  well 
  defined; 
  the 
  interstices 
  

   are 
  not 
  convex; 
  the 
  antennae 
  are 
  strongly 
  serrate, 
  the 
  third 
  joint 
  hardly 
  longer 
  than 
  the 
  

   second; 
  the 
  eleventh 
  joint 
  oval. 
  

  

  19. 
  E. 
  fuscatus, 
  ater, 
  helvo-pubescens, 
  thorace 
  oblongo, 
  antice 
  angustato, 
  punctato, 
  elytris 
  a 
  

   basi 
  subangustatis, 
  striis 
  punctatis, 
  interstitiis 
  rugose 
  punctatis, 
  antennis 
  basi 
  testaceis, 
  articulis 
  2 
  et 
  

   3 
  subfcqualibus, 
  pedibus 
  rufis. 
  Long. 
  "3 
  — 
  "37. 
  

  

  Melsheimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  213. 
  

  

  