﻿OF 
  THE 
  UNITED 
  STATES. 
  447 
  

  

  A.— 
  7. 
  

  

  42. 
  C. 
  spinosus, 
  modicc 
  elongatus, 
  picco-niger, 
  tenuitcr 
  cinereo-pubescens, 
  thorace 
  latitudine 
  

   longiore, 
  parum 
  convexo, 
  antrorsum 
  subangustato, 
  lateribus 
  late 
  rotundatis, 
  confertim 
  subtiliter 
  punc- 
  

   tata, 
  angulis 
  posticis 
  elongatis, 
  subtcstaceis, 
  elytris 
  piceo-testaceis, 
  pone 
  medium 
  suboblique 
  an^us- 
  

   tatis, 
  dense 
  punctatis, 
  obsolete 
  striatis, 
  pedibus 
  piceis, 
  antennis 
  nigris, 
  articulis 
  elongatis, 
  3 
  io 
  sequenti 
  

   non 
  angustiore. 
  Long. 
  "48 
  — 
  -62. 
  

  

  Lake 
  Superior, 
  not 
  rare. 
  This 
  species 
  is 
  an 
  osculant 
  between 
  this 
  division 
  from 
  which 
  

   it 
  borrows 
  the 
  slender 
  subquadrate 
  antennal 
  joints, 
  and 
  the 
  first 
  division, 
  to 
  which 
  it 
  ap- 
  

   proaches 
  by 
  the 
  somewhat 
  obliquely 
  attenuated 
  elytra; 
  the 
  elytra 
  arc, 
  however, 
  not 
  

   strongly 
  margined, 
  and 
  possibly 
  a 
  nearer 
  approach 
  is 
  made 
  to 
  C. 
  tarsalis, 
  of 
  the 
  preceding 
  

   division. 
  The 
  posterior 
  angles 
  of 
  the 
  thorax 
  are 
  finely 
  and 
  strongly 
  cariuate, 
  and 
  the 
  

   carina 
  is 
  parallel 
  to 
  the 
  lateral 
  margin. 
  The 
  sides 
  of 
  the 
  thorax 
  are 
  more 
  rounded 
  in 
  the 
  

   female 
  than 
  in 
  the 
  male, 
  and 
  the 
  thorax 
  is 
  less 
  narrowed 
  in 
  front; 
  the 
  antenna; 
  of 
  the 
  female 
  

   are 
  hardly 
  longer 
  than 
  the 
  thorax, 
  those 
  of 
  the 
  male 
  are 
  nearly 
  half 
  as 
  long 
  as 
  the 
  body. 
  

  

  43. 
  C. 
  pyrrhos, 
  valde 
  elongatus, 
  linearis, 
  fusco-testaceus, 
  vel 
  fuscus 
  pubescens, 
  fronte 
  subconcava, 
  

   tborace 
  latitudine 
  plus 
  sesqui 
  longiore, 
  subconvexo, 
  confertim 
  punctato, 
  linea 
  tenui 
  dorsali 
  lsevi, 
  an- 
  

   gulis 
  posticis 
  elongatis, 
  divaricatis, 
  elytris 
  striis 
  punctatis, 
  interstitiis 
  vage 
  punctatis, 
  vix 
  convexis 
  

   abdomine, 
  pedibus, 
  antennisque 
  flavo-testaceis, 
  his 
  articulo 
  3 
  ,n 
  sequenti 
  sequali. 
  Long. 
  -67 
  — 
  -84. 
  

  

  Mas, 
  thorace 
  lateribus 
  fere 
  rectis, 
  elytris 
  postice 
  baud 
  oblique 
  attenuatis 
  ; 
  antennis 
  valde 
  elongatis. 
  

  

  Water 
  pyrrhos 
  Herbst, 
  Kafer, 
  10, 
  30; 
  tab. 
  160, 
  fig. 
  11: 
  Say, 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  G, 
  180. 
  

   Femina, 
  thorace 
  lateribus 
  obtuse 
  subangulatis, 
  elytris 
  paulo 
  dilatatis 
  et 
  oblique 
  attenuatis. 
  

  

  Athous 
  pyrrhicus 
  Hald. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  1, 
  303. 
  

  

  Athous 
  vagrans 
  Melsheimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  153. 
  

  

  Athous 
  sequalis 
  Melsbeimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  153. 
  

  

  Middle, 
  Southern, 
  and 
  Western 
  States, 
  not 
  rare. 
  Although 
  placed 
  in 
  Athous 
  by 
  many 
  

   authors, 
  this 
  species 
  does 
  not 
  differ 
  in 
  any 
  respect 
  from 
  Corymbites; 
  the 
  first 
  joint 
  of 
  the 
  

   tarsi 
  is 
  not 
  as 
  long 
  as 
  the 
  two 
  following, 
  nor 
  is 
  the 
  front 
  margined 
  anteriorly. 
  

  

  44. 
  C. 
  bivit 
  tat 
  us, 
  valde 
  elongatus, 
  linearis, 
  nigro-piceus, 
  fusco-pubescens, 
  fronte 
  concava, 
  tho- 
  

   race 
  latitudine 
  plus 
  sesqui 
  longiore, 
  antrorsum 
  paulo 
  angustato, 
  lateribus 
  rectis, 
  angulis 
  posticis 
  

   elongatis 
  testaceis, 
  scabro-punctato, 
  margine 
  apicali, 
  lineaque 
  dorsali 
  ssepe 
  obsoleta 
  testaceis, 
  elytris 
  

   testaceis, 
  sutura, 
  vitta 
  dorsali 
  margineque 
  plus 
  minus 
  nigro-piceis, 
  striis 
  punctatis, 
  interstitiis 
  planis 
  

   scabris, 
  antennis 
  piceis 
  vel 
  fuscis 
  articulo 
  3'° 
  sequcnte 
  paulo 
  breviore. 
  Long. 
  *32 
  — 
  -42. 
  

  

  Campylus? 
  bivittatus 
  Melsheimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  219. 
  

  

  Middle, 
  Southern, 
  and 
  Western 
  States. 
  A 
  variety 
  found 
  in 
  New 
  Jersey 
  by 
  Mr. 
  Guex, 
  

   has 
  the 
  elytra 
  luteous 
  with 
  the 
  exception 
  of 
  a 
  narrow 
  black 
  sutural 
  and 
  marginal 
  line; 
  

   another 
  from 
  Illinois 
  has 
  the 
  thorax 
  testaceous, 
  with 
  two 
  broad 
  dorsal 
  vittae, 
  and 
  a 
  narrow 
  

   marginal 
  line 
  blackish. 
  The 
  feet 
  are 
  sometimes 
  piceous, 
  sometimes 
  testaceous. 
  The 
  

   antenna} 
  are 
  half 
  as 
  long 
  as 
  the 
  body 
  in 
  my 
  specimens, 
  all 
  of 
  which 
  appear 
  to 
  be 
  males. 
  

  

  45. 
  C. 
  i 
  a 
  cuius, 
  valde 
  elongatus, 
  linearis, 
  fusco-piceus, 
  fusco-pubescens, 
  fronte 
  valde 
  concava, 
  an- 
  

   tice 
  submarginata, 
  thorace 
  latitudine 
  plus 
  sesqui 
  longiore, 
  lateribus 
  rectis 
  parallelis, 
  apice 
  paulo 
  ro- 
  

   tundatis, 
  confertim 
  punctato, 
  angulis 
  posticis 
  divergentibus, 
  productis, 
  elytris 
  striis 
  punctatis, 
  inter- 
  

   stitiis 
  subconvexis, 
  rugose 
  punctulatis, 
  pedibus 
  piceo-testaceis, 
  antennis 
  articulo 
  3'° 
  sequcnte 
  vix 
  mi- 
  

   nore. 
  Long. 
  -45. 
  

  

  vol. 
  x. 
  — 
  74 
  

  

  