﻿OF 
  THE 
  UNITED 
  STATES. 
  

  

  413 
  

  

  Coxa? 
  posticas 
  laminis 
  magnis 
  ; 
  

  

  intus 
  sensim 
  vakle 
  dilatatis, 
  tarsi 
  antici 
  articulo 
  l 
  m 
  " 
  vix 
  longiore 
  Emathion. 
  

   intus 
  subsubito 
  dilatatis 
  ( 
  % 
  art. 
  8-11 
  elongatis) 
  - 
  - 
  Epiphanis. 
  

  

  intus 
  sensim 
  maxime 
  dilatatis 
  ( 
  % 
  art. 
  9-11 
  elongatis) 
  - 
  Euryptychus. 
  

  

  B. 
  Thorax 
  subtus 
  ad 
  latcra 
  sulcatus; 
  (coxae 
  laminis 
  magnis 
  :) 
  

  

  Tarsi 
  articulis 
  1-3 
  non 
  lobatis. 
  

  

  Antennas 
  tenues, 
  subcylindrica) 
  .... 
  Fornax. 
  

  

  Antennas 
  serratae 
  vel 
  pectinata: 
  - 
  Eucnemis. 
  

  

  Tarsi 
  articulis 
  2-4 
  breviter 
  lobatis 
  .... 
  Galba 
  (Dendrocbares.) 
  

  

  C. 
  Thorax 
  subtus 
  ad 
  prosterni 
  latcra 
  sulcatus: 
  (coxas 
  laminis 
  mediocribus.) 
  

  

  Tarsi 
  non 
  lobati 
  ------- 
  Microrhagus. 
  

  

  The 
  native 
  species 
  belonging 
  to 
  these 
  genera 
  have 
  been 
  enumerated 
  by 
  me 
  in 
  the 
  

   Proceedings 
  of 
  the 
  Academy 
  of 
  Natural 
  Sciences 
  above 
  mentioned. 
  For 
  the 
  purpose 
  of 
  

   making 
  the 
  present 
  paper 
  complete, 
  I 
  will 
  here 
  add, 
  to 
  what 
  is 
  there 
  contained, 
  diagnoses 
  

   of 
  Say's 
  species, 
  which 
  are 
  there 
  only 
  mentioned 
  by 
  name. 
  It 
  is 
  necessary 
  first 
  to 
  state, 
  

   that 
  I 
  have 
  united 
  the 
  genus 
  Isarthrus 
  Lee. 
  with 
  Fornax, 
  as 
  being 
  not 
  sufficiently 
  distinct. 
  

   The 
  genus 
  Onychodon 
  Newman, 
  of 
  which 
  I 
  have 
  procured 
  the 
  typical 
  species, 
  must 
  also 
  

   be 
  united 
  with 
  Fornax: 
  from 
  the 
  very 
  loose 
  manner 
  in 
  which 
  Newman's 
  descriptions 
  

   were 
  drawn 
  up, 
  the 
  affinity 
  of 
  Onychodon 
  to 
  the 
  Eucnemides 
  has 
  not 
  been 
  recognised 
  ; 
  

   nor 
  is 
  there 
  any 
  thing 
  in 
  his 
  description 
  (except 
  the 
  lateral 
  grooves 
  for 
  the 
  reception 
  of 
  

   the 
  antenna)) 
  which 
  indicates 
  it 
  to 
  be 
  other 
  than 
  a 
  true 
  Elateride. 
  

  

  Anelastes 
  Kirhy. 
  

   ■ 
  1. 
  A. 
  Druryi, 
  obscure 
  rufo-piceus, 
  subcylindricus, 
  opacus, 
  thorace 
  transverso 
  convexo, 
  lateribus 
  

   rotundatis 
  angulis, 
  posticis 
  parvis 
  divergentibus, 
  subtiliter 
  scabro, 
  postice 
  canaliculato, 
  elytris 
  striis 
  

   profundis, 
  interstitiis 
  convexis, 
  scabris. 
  Long. 
  - 
  45 
  — 
  - 
  6. 
  

  

  Kirby, 
  Trans. 
  Linn. 
  Soc. 
  12, 
  tab. 
  21, 
  'fig. 
  2; 
  Guerin, 
  Ann. 
  Ent. 
  Soc. 
  Fr. 
  ser. 
  2d, 
  1, 
  17. 
  

   Silenus 
  brunneus 
  Latreille, 
  Ann. 
  Ent. 
  Soc. 
  France, 
  3, 
  12iJ. 
  

  

  Southern 
  States, 
  not 
  rare. 
  The 
  front, 
  as 
  in 
  the 
  next 
  species, 
  is 
  faintly 
  channelled 
  ante- 
  

   riorly, 
  the 
  whole 
  upper 
  surface 
  is 
  more 
  scabrous 
  than 
  in 
  the 
  next 
  species, 
  and 
  the 
  sides 
  of 
  

   the 
  thorax 
  are 
  less 
  rounded 
  : 
  the 
  dilated 
  portion 
  of 
  the 
  posterior 
  coxal 
  plates 
  is 
  emargi- 
  

   nate 
  and 
  toothed, 
  a 
  character 
  seen 
  in 
  no 
  other 
  genus 
  of 
  this 
  division. 
  

  

  S 
  2. 
  A. 
  Latreillei, 
  obscure 
  rufo-piceus, 
  subnitidus, 
  thorace 
  transverso 
  convexo, 
  subtiliter 
  parcc 
  

   grannlato, 
  postice 
  canaliculato, 
  lateribus 
  valde 
  rotundatis, 
  angulis 
  posticis 
  subdivergentibus, 
  elytris 
  

   profunde 
  striatis, 
  interstitiis 
  subtiliter 
  rugosis 
  et 
  scabris. 
  Long. 
  -4 
  — 
  -5. 
  

   Lee. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  6, 
  47. 
  

  

  California, 
  collected 
  in 
  the 
  interior 
  of 
  the 
  country 
  by 
  Mr. 
  Child. 
  

  

  Hylochakes 
  Lair. 
  Guerin. 
  

  

  y 
  1. 
  II. 
  nigricornis, 
  subcylindricus, 
  crassiusculus, 
  ater, 
  opacus, 
  capite 
  scabro 
  canaliculato, 
  tho- 
  

   race 
  subtransverso, 
  convexo, 
  lateribus 
  late 
  rotundato, 
  scabro, 
  profunde 
  canaliculato, 
  utrinquo 
  ad 
  me- 
  

   dium 
  et 
  ad 
  basin 
  transversim 
  profunde 
  impresso, 
  angulis 
  posticis 
  minutis, 
  elytris 
  striis 
  profundis 
  

   punctatis, 
  interstitiis 
  convexis 
  scabris, 
  antennis 
  pedibusque 
  obscure 
  rufo-piceis. 
  Long. 
  -3. 
  

  

  Lee. 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  6, 
  47. 
  

  

  Melasis 
  nigricornis 
  Say, 
  Journ. 
  Acad. 
  Nat. 
  Sc. 
  3, 
  1(j">. 
  

  

  