﻿OF 
  THE 
  UNITED 
  STATES. 
  423 
  

  

  tice 
  marginata 
  rotundata, 
  parum 
  convexa: 
  antennas 
  articulo 
  l 
  mo 
  mediocri: 
  coxae 
  postica) 
  dentc 
  interno 
  

   vix 
  prominulo 
  : 
  tarsi 
  non 
  lobati: 
  

  

  Ungues 
  simplices: 
  tarsi 
  mediocres 
  setosi 
  ... 
  Cryptohypnus. 
  

  

  Ungues 
  medio 
  unidentati 
  : 
  tarsi 
  elongati 
  pubescentes 
  - 
  Oedostethus. 
  

  

  2. 
  Tarsi 
  non 
  lobati, 
  sitblus 
  densius 
  pubescentes, 
  vel 
  scepius 
  injlati 
  et 
  penicellati; 
  antenna 
  scepe 
  

   receptee; 
  mesostcrnum 
  scepe 
  protuberans 
  ; 
  prosternum 
  semper 
  mucronatum 
  it 
  lobatum: 
  

   (frons 
  modiccvel 
  vix 
  marginata 
  ;) 
  {lamina 
  coxarum 
  angustce, 
  non 
  vcl 
  vix 
  subito 
  dilatalx.) 
  

  

  II. 
  Antennae 
  receptas; 
  thorax 
  vesiculis 
  nullis: 
  

  

  Antennas 
  articulo 
  ultimo, 
  non 
  constricto 
  ... 
  Adeloccra. 
  

  

  Antennas 
  articulo 
  ultimo 
  constricto 
  - 
  - 
  - 
  Agrypnus. 
  

  

  I. 
  Antenna) 
  non 
  receptee; 
  thorax 
  vesiculis 
  luminiferis: 
  

  

  Antennas 
  fere 
  12-articulatse 
  - 
  Pyrophorus. 
  

  

  K. 
  Antennas 
  non 
  receptas; 
  mesosternum 
  protuberans; 
  thorax 
  vesiculis 
  nullis: 
  

   Frons 
  sensim 
  declivis; 
  tarsi 
  mediocres; 
  

  

  Coxas 
  postica) 
  laminis 
  postice 
  sinuatis 
  - 
  Aphanobius. 
  

  

  Coxa) 
  postica) 
  laminis 
  non 
  sinuatis 
  - 
  Melanactcs. 
  

  

  Frons 
  subito 
  declivis 
  ; 
  tarsi 
  crassiusculi 
  ; 
  

  

  Mesosternum 
  distinctum 
  ..... 
  Alans. 
  

  

  Mesosternum 
  connatum 
  ..... 
  Chalcolepidius. 
  

  

  3. 
  Tarsi 
  pubescentes, 
  scepe 
  sublus 
  lobati, 
  nee 
  injlati, 
  nee 
  penicellati 
  ; 
  antenna 
  non 
  receptee; 
  

   mesosternum 
  protuberans 
  ; 
  prosternum 
  anti.ee 
  lobatum, 
  mucrone 
  postico 
  brevi 
  iruncato 
  ; 
  {frons 
  

   marginata, 
  ungues 
  varii.) 
  ------- 
  Cardiophorus. 
  

  

  Campylus 
  Fischer. 
  

  

  A. 
  Tarsi 
  articulis 
  2 
  — 
  4 
  subtus 
  ad 
  apicem 
  spongiosi. 
  

  

  1. 
  C. 
  product 
  us, 
  asneo-piceus, 
  fusco-pubescens, 
  thorace 
  planiusculo 
  confertim 
  punctato, 
  latitudine 
  

   longiore 
  lateribus 
  rectis 
  parallelis, 
  fortius 
  marginatis, 
  margine 
  angulisque 
  posticis 
  rufescentibus, 
  ely- 
  

   tris 
  seriatim 
  punctatis, 
  substriatis, 
  interstitiis 
  punctatis 
  et 
  subrugusosis. 
  Long. 
  -58. 
  

  

  JElater 
  (Campylus) 
  productus 
  Randall, 
  Bost. 
  Journ. 
  Nat. 
  Hist. 
  2, 
  8. 
  

  

  Lake 
  Superior, 
  two 
  specimens; 
  Maine, 
  Randall. 
  

  

  B. 
  Tarsi 
  sublus 
  serpjaliler 
  pubescentes, 
  non 
  spongiosi. 
  

  

  2. 
  C. 
  denticornis, 
  ater, 
  parce 
  flavo-pubescens, 
  capite 
  thoraccque 
  grosse 
  conflucnter 
  punctatis, 
  

   fronte 
  thoracisque 
  margine 
  omni 
  pallido, 
  hoc 
  canaliculato, 
  paulo 
  inasquali, 
  antice 
  subangustato, 
  lati- 
  

   tudine 
  non 
  longiore, 
  elytris 
  seneo-piceis, 
  substriatis, 
  confertim 
  rugose 
  punctatis, 
  margine 
  vittaque 
  

   tenui 
  saspe 
  obsoleta, 
  pallidis. 
  Long. 
  "43. 
  

  

  Kirby, 
  Fauna 
  Bor. 
  Am. 
  145; 
  Germar, 
  Linnasa 
  Entom. 
  1, 
  150. 
  

   Campylus 
  flavinasus 
  Melsheimer, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  219. 
  

  

  Lake 
  Superior, 
  Maine, 
  and 
  Pennsylvania. 
  In 
  the 
  male 
  the 
  sides 
  of 
  the 
  thorax 
  are 
  

   slightly 
  sinuous, 
  and 
  the 
  antenna? 
  are 
  longer 
  than 
  in 
  the 
  female. 
  

   vol. 
  x.— 
  71 
  

  

  