﻿OF 
  THE 
  UNITED 
  STATES. 
  475 
  

  

  tato, 
  carina 
  angulari 
  margini 
  valde 
  approximata, 
  elytris 
  a 
  basi 
  attenuatis, 
  punctis 
  magnis 
  seriatis, 
  in- 
  

   terstitiis 
  parce 
  punctulatis, 
  antennis 
  elongatis, 
  valde 
  serratis, 
  articulo 
  3'° 
  sccundo 
  sesqui 
  longiore 
  

   pedibus 
  castaneis. 
  Long. 
  "41. 
  

  

  Alelanotus 
  ignobilii 
  Mels. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  32, 
  152. 
  

  

  A 
  very 
  distinct 
  species, 
  of 
  which 
  I 
  have 
  seen 
  only 
  the 
  single 
  male 
  found 
  in 
  Pennsyl- 
  

   vania 
  by 
  Dr. 
  Melsheimer: 
  the 
  pubescence 
  of 
  the 
  antenna 
  is 
  very 
  short, 
  but 
  dense 
  and 
  

   erect. 
  

  

  10. 
  C. 
  depress 
  us, 
  modice 
  elongatus, 
  piceus, 
  griseo-pubesccns, 
  fronte 
  plana, 
  submarginata, 
  tho- 
  

   race 
  latitudine 
  non 
  breviore, 
  antrorsum 
  angustato, 
  lateribus 
  rectis, 
  antice 
  vix 
  rotundatis, 
  parce 
  dis- 
  

   tincte 
  punctato, 
  minus 
  convexo, 
  carina 
  angulari 
  margini 
  valde 
  approximata, 
  elytris 
  a 
  basi 
  attenuatis 
  

   striis 
  impressis 
  subtilius 
  punctatis, 
  interstitiis 
  vage 
  punctulatis, 
  antennis 
  (maris 
  lanuginosis, 
  feininse 
  

   longius 
  pubescentibus) 
  articulo 
  3 
  io 
  4 
  t0 
  vix 
  breviore, 
  pedibus 
  runs. 
  Long. 
  -36 
  — 
  -4. 
  

  

  Ctenonychus 
  depressus 
  Mels. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  151. 
  

  

  Middle 
  and 
  Southern 
  States, 
  not 
  rare. 
  In 
  the 
  male 
  the 
  elytra 
  are 
  more 
  attenuated, 
  and 
  

   almost 
  straight 
  on 
  the 
  sides; 
  in 
  the 
  female 
  the 
  sides 
  are 
  slightly 
  rounded. 
  

  

  11. 
  C. 
  an 
  gust 
  a 
  tus, 
  rufo-testaceus, 
  nitidus, 
  modice 
  elongatus 
  subtiliter 
  griseo-pubescens, 
  fronte 
  

   plana, 
  tboracc 
  minus 
  convexo 
  latitudine 
  vix 
  breviore, 
  antrorsum 
  angustato, 
  lateribus 
  rectis 
  apice 
  paulo 
  

   rotundatis 
  parce 
  subtilius 
  punctato, 
  carina 
  angulari 
  elongata 
  margini 
  valde 
  approximata, 
  elytris 
  striis 
  

   vix 
  impressis 
  distincte 
  punctatis, 
  interstitiis 
  vix 
  subtiliter 
  punctulatis, 
  antennis 
  articulo 
  3'° 
  4 
  10 
  paulo 
  

   breviore. 
  Long. 
  '36. 
  

  

  Ericlison, 
  Germ. 
  Zeitschr. 
  3, 
  113. 
  

  

  Ctenonychus 
  testaceus 
  Mels. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  2, 
  151. 
  

  

  One 
  specimen 
  from 
  Pennsylvania 
  in 
  Dr. 
  Melsheimer's 
  collection, 
  which 
  agrees 
  with 
  

   Erichson's 
  description 
  in 
  every 
  respect 
  except 
  in 
  being 
  rather 
  paler 
  coloured. 
  

  

  12. 
  C. 
  trapezoideus, 
  fusco-piceus, 
  longius 
  griseo-pubescens, 
  fronte 
  fere 
  plana, 
  utrinque 
  paulo 
  

   impressa, 
  thorace 
  latitudine 
  breviore, 
  antrorsum 
  paulo 
  angustato, 
  parce 
  grossius 
  punctato, 
  lateribus 
  

   rectis, 
  carina 
  angulari 
  margini 
  approximata, 
  elytris 
  subparallelis, 
  striis 
  impressis 
  subtilius 
  punctatis, 
  

   interstitiis 
  parce 
  punctatis, 
  pedibus 
  rufis, 
  antennis 
  piceo-rufis, 
  (maris 
  sublanuginosis) 
  articulo 
  3'° 
  2 
  nio 
  

   duplo 
  longiore. 
  Long. 
  -31 
  — 
  "36. 
  

  

  New 
  Jersey, 
  Mr. 
  Guex. 
  Similar 
  in 
  characters 
  to 
  C. 
  depressus, 
  but 
  somewhat 
  less 
  

   elongated, 
  with 
  a 
  shorter 
  thorax; 
  the 
  third 
  joint 
  of 
  the 
  antenna? 
  is 
  intermediate 
  in 
  size 
  to 
  

   the 
  second 
  and 
  fourth. 
  

  

  13. 
  C. 
  t 
  x 
  n 
  i 
  c 
  o 
  1 
  1 
  i 
  s 
  , 
  niger, 
  minus 
  subtiliter 
  albido-pubescens, 
  fronte 
  subimpressa, 
  marginata, 
  tho- 
  

   race 
  latitudine 
  non 
  breviore, 
  minus 
  convexo, 
  lateribus 
  postice 
  parallelis, 
  antice 
  rotundatis, 
  parce 
  punc- 
  

   tato, 
  margine 
  omni 
  Itete 
  rufo, 
  elytris 
  parallelis, 
  striis 
  punctatis, 
  vix 
  impressis, 
  interstitiis 
  parce 
  fortius 
  

   punctatis, 
  margine 
  basali 
  pedibusque 
  lfete 
  rufis, 
  antennis 
  piceo-rufis 
  longius 
  pubescentibus, 
  articulis 
  2 
  

   et 
  3 
  parvis 
  sequalibus. 
  Long. 
  -35. 
  

  

  One 
  specimen, 
  Philadelphia, 
  Mr. 
  Schafhirt. 
  Peculiar 
  from 
  the 
  very 
  quadrate 
  form 
  of 
  

   the 
  thorax; 
  the 
  inflexed 
  portion 
  of 
  the 
  thorax 
  is 
  red, 
  the 
  prosternum 
  black; 
  the 
  carina 
  of 
  

   the 
  posterior 
  angles 
  of 
  the 
  thorax 
  is 
  short, 
  and 
  diverges 
  a 
  little 
  from 
  the 
  margin; 
  the 
  an- 
  

   tennaj 
  do 
  not 
  reach 
  beyond 
  the 
  base 
  of 
  the 
  thorax. 
  

  

  14. 
  C. 
  Leonardi, 
  niger, 
  subtilius 
  cincreo-pubescens, 
  fronte 
  paulo 
  convexa, 
  thorace 
  lpete 
  

   sanguineo, 
  latitudine 
  vix 
  longiore, 
  convexiusculo 
  antrorsum 
  angustato, 
  et 
  lateribus 
  rotundato, 
  punc- 
  

  

  