﻿OF 
  THE 
  UNITED 
  STATES. 
  49 
  I 
  

  

  «•> 
  6. 
  A. 
  brevicornis, 
  nigra, 
  opaca, 
  squamis 
  fulvis 
  vel 
  pallidis 
  et 
  nigris 
  ellipticis 
  irregulariter 
  va- 
  

   riegata, 
  dense 
  punctata, 
  thorace 
  breviusculo, 
  insequali, 
  postice 
  angustiore, 
  late 
  profunde 
  canaliculato, 
  

   antice 
  valde 
  bifoveato, 
  angulis 
  posticis 
  compressis, 
  elevatis, 
  apice 
  inflcxis, 
  elytris 
  fascia 
  postice 
  obli- 
  

   qua 
  interrupts 
  densius 
  squamosa; 
  antennis 
  thorace 
  triplo 
  brevioribus. 
  Long. 
  - 
  55 
  — 
  - 
  70. 
  

  

  Lake 
  Superior. 
  This 
  species 
  seems 
  to 
  be 
  very 
  similar 
  to 
  A. 
  conspersa 
  Germ., 
  but 
  

   the 
  posterior 
  angles 
  of 
  the 
  thorax 
  are 
  not 
  carinated, 
  though 
  compressed 
  and 
  elevated 
  by 
  

   the 
  excavation 
  of 
  the 
  basal 
  part 
  of 
  the 
  thorax 
  each 
  side. 
  The 
  antennas 
  are 
  remarkably 
  

   short, 
  the 
  joints 
  are 
  strongly 
  transverse, 
  and 
  the 
  second 
  joint, 
  though 
  narrower, 
  is 
  not 
  

   shorter 
  than 
  the 
  others. 
  

  

  2. 
  Antennse 
  articulo 
  3'° 
  secundo 
  sequali. 
  

  

  7. 
  A. 
  mucorea, 
  nigra, 
  dense 
  sordide 
  pubescens, 
  fusco-variegata, 
  thorace 
  subcanaliculato 
  sat 
  

   dense 
  punctato, 
  antrorsum 
  angustato, 
  basi 
  truncato, 
  angulis 
  posticis 
  divergentibus, 
  elytris 
  striis 
  punc- 
  

   tatis 
  vix 
  impressis, 
  interstitiis 
  subtilius 
  confluenter 
  punctatis, 
  antennis 
  rufo-piceis. 
  Long. 
  -55. 
  

  

  One 
  specimen, 
  Georgia. 
  Similar 
  in 
  form 
  to 
  the 
  following 
  species, 
  but 
  very 
  different 
  in 
  

   characters. 
  

  

  „ 
  8. 
  A. 
  curt 
  us, 
  nigro-picea, 
  parce 
  subtiliter 
  squamosa, 
  thorace 
  cribratim 
  punctato 
  antrorsum 
  an- 
  

   gustato, 
  lateribus 
  rotundatis 
  antice 
  crenatis, 
  angulis 
  posticis 
  rectis, 
  elytris 
  punctis 
  transversis 
  seriatim 
  

   positis, 
  interstitiis 
  striis 
  non 
  latioribus, 
  parce 
  obsolete 
  punctulatis, 
  antennis 
  pedibusque 
  rufo-testaceis. 
  

   Long. 
  -43. 
  

  

  Georgia. 
  This 
  species 
  is 
  Agrypnus 
  cartus 
  of 
  Dejean's 
  catalogue, 
  and 
  resembles 
  very 
  

   closely 
  the 
  next, 
  but 
  is 
  distinguished 
  by 
  the 
  greater 
  size 
  of 
  the 
  punctures 
  which 
  compose 
  

   the 
  stria? 
  of 
  the 
  elytra: 
  the 
  body 
  is 
  very 
  coarsely 
  punctured 
  beneath, 
  and, 
  as 
  in 
  the 
  next 
  

   species, 
  is 
  thinly 
  clothed 
  with 
  depressed 
  small 
  scale-like 
  yellow 
  hairs. 
  

  

  9. 
  A. 
  rectangular 
  is, 
  picea, 
  parce 
  subtiliter 
  luteo-squamosa, 
  thorace 
  cribratim 
  punctato, 
  an- 
  

   trorsum 
  angustato, 
  lateribus 
  rotundatis, 
  antice 
  crenatis, 
  angulis 
  posticis 
  rectis, 
  elytris 
  punctato-stri- 
  

   atis, 
  interstitiis 
  striis 
  latioribus, 
  parce 
  obsolete 
  punctulatis, 
  antennis 
  pedibusque 
  testaceis. 
  Long. 
  

   •33— 
  -38. 
  

  

  Mater 
  rectangularis 
  Say, 
  Ann. 
  Lye. 
  1, 
  263 
  ; 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  6, 
  182. 
  

  

  Missouri 
  Territory, 
  abundant. 
  The 
  pectoral 
  grooves 
  for 
  the 
  anterior 
  tarsi 
  are 
  almost 
  

   obsolete: 
  in 
  the 
  preceding 
  they 
  are 
  more 
  distinct, 
  while 
  in 
  A. 
  mucorea, 
  they 
  are 
  altogether 
  

   wanting: 
  the 
  elytra 
  of 
  the 
  female 
  are 
  slightly 
  dilated 
  behind 
  the 
  base, 
  and 
  are 
  more 
  ob- 
  

   tusely 
  rounded 
  towards 
  the 
  tip 
  than 
  in 
  the 
  male. 
  

  

  To 
  this 
  genus, 
  and 
  to 
  the 
  first 
  division, 
  probably 
  belongs 
  the 
  Elater 
  operculars 
  men- 
  

   tioned 
  by 
  Say, 
  as 
  described 
  in 
  the 
  Annals 
  of 
  the 
  Lyceum: 
  but 
  as 
  he 
  has 
  evidently 
  mis- 
  

   quoted 
  himself, 
  and 
  no 
  description 
  bearing 
  that 
  name 
  is 
  found 
  in 
  his 
  writings, 
  it 
  must 
  

   be 
  considered 
  as 
  unpublished: 
  Elater 
  a 
  v 
  i 
  t 
  u 
  s 
  Say 
  (Trans. 
  Am. 
  Phil. 
  Soc. 
  6, 
  182) 
  seems 
  

   allied 
  to 
  A. 
  impressicollis. 
  

  

  ' 
  

  

  Agrypnus 
  Esch. 
  

   1. 
  A. 
  Sail 
  ei, 
  piceo-niger, 
  subtiliter 
  brunneo-pubescens, 
  thorace 
  latitudine 
  longiore, 
  antrorsum 
  

   paulo 
  angustato 
  parum 
  convexo, 
  confertim 
  punctato, 
  lateribus 
  antice 
  paulo 
  rotundatis, 
  postice 
  extror- 
  

   sum 
  curvatis, 
  angulis 
  posticis 
  inde 
  divaricatis, 
  carina 
  angulari 
  subtili 
  elongata 
  margini 
  parallela, 
  linea 
  

  

  