﻿OF 
  THE 
  UNITED 
  STATES. 
  495 
  

  

  Middle 
  and 
  Southern 
  States, 
  rare. 
  E. 
  lacunosus, 
  as 
  observed 
  by 
  Germar 
  is 
  undoubtedly 
  

   a 
  variety, 
  having 
  abnormal 
  impressions 
  on 
  the 
  thorax. 
  

  

  5. 
  M. 
  p 
  u 
  n 
  c 
  t 
  i 
  c 
  o 
  1 
  1 
  i 
  s 
  , 
  niger, 
  nitidus, 
  thorace 
  latitudine 
  longiore, 
  a 
  basi 
  antrorsum 
  subangustato, 
  

   lateribus 
  antice 
  rotundatis, 
  confertim, 
  disco 
  minus 
  dense 
  punctato, 
  elytris 
  striis 
  fortius 
  punctatis, 
  in- 
  

   terstitiis 
  leviter 
  convexis, 
  distinctius 
  punctulatis. 
  Long. 
  - 
  75 
  — 
  - 
  9. 
  

  

  Pristilophus 
  puneticollis 
  Lee. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  G, 
  68. 
  

  

  Missouri 
  Territory, 
  abundant. 
  This 
  species 
  agrees 
  in 
  characters 
  with 
  the 
  preceding, 
  

   but 
  is 
  usually 
  smaller, 
  with 
  less 
  deep 
  elytral 
  strife, 
  and 
  less 
  convex 
  interstices. 
  

  

  6. 
  M. 
  cons 
  or 
  s, 
  latiusculus, 
  niger, 
  thorace 
  latitudine 
  non 
  longiore, 
  lateribus 
  rotundatis, 
  ad 
  me- 
  

   dium 
  sublatiore, 
  confertim 
  punctato, 
  paulo 
  remotius 
  in 
  disco, 
  elytris 
  striis 
  punctatis, 
  interstitiis 
  leviter 
  

   convexis, 
  punctulatis 
  et 
  rugosis. 
  Long. 
  '88. 
  

  

  One 
  specimen, 
  Nebraska. 
  Differs 
  from 
  the 
  preceding 
  by 
  its 
  less 
  shining 
  colour, 
  broader 
  

   form, 
  and 
  more 
  densely 
  punctured 
  thorax. 
  Body 
  black, 
  not 
  very 
  shining; 
  head 
  densely 
  

   punctured; 
  antenna? 
  reaching 
  a 
  little 
  beyond 
  the 
  middle 
  of 
  the 
  thorax; 
  thorax 
  not 
  longer 
  

   than 
  wide, 
  at 
  the 
  middle 
  as 
  wide 
  as 
  at 
  the 
  posterior 
  angles, 
  which 
  from 
  the 
  slight 
  nar- 
  

   rowing 
  of 
  the 
  base 
  appear 
  divergent; 
  sides 
  broadly 
  rounded, 
  strongly 
  margined: 
  disc 
  

   densely 
  punctured, 
  punctures 
  a 
  little 
  more 
  distant 
  at 
  the 
  middle, 
  dorsal 
  line 
  not 
  distinct, 
  

   somewhat 
  smooth. 
  Elytra 
  scarcely 
  perceptibly 
  narrower 
  than 
  the 
  thorax, 
  more 
  obtusely 
  

   rounded 
  posteriorly 
  than 
  in 
  the 
  two 
  preceding 
  species; 
  stria? 
  well 
  defined, 
  strongly 
  punc- 
  

   tured; 
  interstices 
  slightly 
  convex, 
  finely 
  punctulate 
  and 
  rugous. 
  

  

  7. 
  M. 
  Reicbei, 
  niger 
  nitidus, 
  pube 
  brevissima 
  grisea 
  depressa 
  vix 
  conspicua 
  vestitus, 
  thorace 
  

   latitudine 
  longiore, 
  medio 
  vix 
  latiore, 
  lateribus 
  rotundatis, 
  confertim, 
  lateribus 
  confluenter 
  subtilius 
  

   punctato, 
  postice 
  canaliculato, 
  elytriis 
  striis 
  fortius 
  punctatis, 
  interstitiis 
  parum 
  convexis, 
  rugosis. 
  

   Long. 
  -90. 
  

  

  Pristilophus 
  JleicJtei 
  Germ. 
  Zeitschr. 
  4, 
  85. 
  

  

  One 
  specimen, 
  Georgia. 
  Easily 
  distinguished 
  by 
  the 
  fine 
  short 
  gray 
  hairs 
  which 
  pro- 
  

   ceed 
  from 
  the 
  punctures: 
  the 
  thorax 
  is 
  more 
  convex 
  than 
  in 
  any 
  of 
  the 
  other 
  species. 
  

   Germar 
  describes 
  the 
  interstices 
  of 
  the 
  elytra 
  as 
  flat, 
  but 
  in 
  my 
  specimen 
  they 
  are 
  slightly 
  

   convex, 
  as 
  in 
  the 
  two 
  preceding 
  species. 
  

  

  m 
  Chalcolepidius 
  Esch. 
  

  

  1. 
  C. 
  viridipilis, 
  elongatus, 
  niger, 
  pilis 
  minutis 
  squamiformibus 
  olivaceis 
  dense 
  tectus, 
  thorace 
  

   elongato, 
  subtilissime 
  punctulato, 
  angulis 
  posticis 
  vix 
  divergentibus, 
  scutello 
  obovato, 
  antice 
  obtuso, 
  

   elytris 
  striis 
  profundis 
  punctatis, 
  interstitiis 
  parce 
  punctulatis, 
  antennarum 
  articulo 
  3'° 
  parvo, 
  apice 
  

   acuto. 
  Long. 
  - 
  90. 
  

  

  Plater 
  viridipilis 
  Say, 
  Ann. 
  Lye. 
  1, 
  257; 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  6, 
  166. 
  

  

  Middle 
  and 
  Southern 
  States, 
  rare. 
  The 
  antenna? 
  of 
  the 
  male 
  are 
  pectinate, 
  those 
  of 
  

   the 
  female 
  are 
  strongly 
  serrate. 
  This 
  species 
  must 
  resemble 
  very 
  closely 
  the 
  Brazilian 
  

   C. 
  prasinus 
  Erichson 
  (Germ. 
  Zeitschr. 
  3, 
  85;) 
  but 
  that 
  species 
  is 
  described 
  as 
  having 
  the 
  

   thorax 
  finely, 
  tolerably 
  densely 
  punctured, 
  and 
  the 
  scutellum 
  bicuspid 
  anteriorly. 
  Should 
  

   they 
  prove 
  identical, 
  Say's 
  name 
  has 
  priority. 
  

   vol. 
  x. 
  — 
  80 
  

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