﻿OF 
  THE 
  UNITED 
  STATES. 
  415 
  

  

  Epiphanis 
  Esch. 
  

  

  1. 
  E. 
  cri 
  status, 
  nigro-piceusj 
  griseo-pubesccns, 
  capite 
  punctulato, 
  fronte 
  eristata, 
  thorace 
  sub- 
  

   transverso, 
  antrorsum 
  valdo 
  angustato, 
  lateribus 
  rotundatis, 
  subtilius 
  dense 
  punetato, 
  linea 
  dorsali 
  

   angustata 
  laevi, 
  angulis 
  posticis 
  productis, 
  elytris 
  parallelis, 
  punctatis, 
  tcnuiter 
  fere 
  obsolete 
  striatis, 
  

   antennis 
  pedibusque 
  rufo-piceis. 
  Long. 
  -20. 
  

  

  Le 
  Conte, 
  Proc. 
  Acad. 
  Nat. 
  Sc. 
  6, 
  46. 
  • 
  

  

  One 
  specimen 
  found 
  at 
  New 
  York. 
  This 
  species 
  agrees 
  in 
  the 
  form 
  of 
  the 
  body, 
  as 
  

   well 
  as 
  in 
  all 
  its 
  generic 
  characters 
  with 
  E. 
  cornutus 
  Esch. 
  The 
  punctures 
  of 
  the 
  upper 
  

   surface 
  are 
  not 
  scabrous, 
  and 
  by 
  the 
  great 
  narrowing 
  of 
  the 
  thorax 
  in 
  front, 
  the 
  form 
  of 
  

   body, 
  usual 
  in 
  the 
  Elaterida?, 
  is 
  at 
  length 
  reached: 
  the 
  last 
  four 
  joints 
  of 
  the 
  antenna? 
  

   together 
  are 
  equal 
  in 
  length 
  to 
  all 
  the 
  rest: 
  the 
  third 
  is 
  hardly 
  longer 
  than 
  the 
  fourth: 
  the 
  

   fourth 
  joint 
  of 
  the 
  tarsi 
  is 
  not 
  at 
  all 
  lobed, 
  and 
  the 
  first 
  joint 
  of 
  the 
  anterior 
  pair 
  is 
  as 
  long 
  

   as 
  the 
  two 
  following 
  united. 
  It 
  is 
  distinguished 
  from 
  the 
  preceding, 
  as 
  well 
  as 
  the 
  next 
  

   genus, 
  by 
  the 
  plates 
  of 
  the 
  posterior 
  coxa? 
  being 
  more 
  suddenly 
  dilated, 
  and 
  truncate 
  pos- 
  

   teriorly, 
  so 
  that 
  they 
  do 
  not 
  extend 
  farther 
  at 
  the 
  middle 
  than 
  at 
  the 
  internal 
  margin. 
  

  

  E. 
  cornutus 
  Esch., 
  Zool. 
  Atlas 
  1, 
  10, 
  tab. 
  4, 
  fig. 
  G; 
  Mann. 
  Bull. 
  Mosc. 
  (1843) 
  238: 
  is 
  from 
  Sit- 
  

   kha; 
  it 
  is 
  unknown 
  to 
  me, 
  and 
  seems 
  to 
  differ 
  from 
  the 
  one 
  described 
  above, 
  by 
  its 
  reddish 
  brown 
  colour, 
  

   with 
  only 
  the 
  head 
  and 
  thorax 
  black, 
  and 
  more 
  prominent 
  crest 
  forming 
  a 
  short 
  horn. 
  

  

  EURYPTYCHUS 
  Lcc. 
  

  

  1. 
  E. 
  h 
  et 
  ero 
  cerus, 
  rufo-castaneus, 
  helvo-pubescens, 
  thorace 
  transverso, 
  antrorsum 
  valde 
  angus- 
  

   tato, 
  lateribus 
  pra;cipue 
  antice 
  rotundatis, 
  subtiliter 
  dense 
  punetato, 
  angulis 
  posticis 
  paulo 
  productis, 
  

   elytris 
  a 
  basi 
  subangustatis, 
  striis 
  tenuibus, 
  interstitiis 
  subtiliter 
  scabro-punctulatis. 
  Long. 
  -37 
  — 
  - 
  52. 
  

  

  Le 
  Conte, 
  Troc. 
  Acad. 
  Nat. 
  Sc. 
  6, 
  46. 
  

  

  JEucnemis 
  heterocerua 
  Say, 
  Trans. 
  Am. 
  Phil. 
  Soc. 
  6, 
  186. 
  

  

  Pennsylvania, 
  rare: 
  two 
  specimens 
  from 
  Rev. 
  D. 
  Ziegler 
  and 
  Mr. 
  Rathvon. 
  The 
  last 
  

   three 
  joints 
  of 
  the 
  antenna? 
  are 
  as 
  long 
  as 
  the 
  preceding, 
  leaving 
  out 
  the 
  elongated 
  first 
  

   joint: 
  the 
  third 
  is 
  nearly 
  twice 
  as 
  long 
  as 
  the 
  fourth. 
  The 
  general 
  form 
  is 
  that 
  of 
  true 
  

   Elater, 
  yet, 
  although 
  differing 
  so 
  much 
  in 
  appearance, 
  the 
  distinction 
  of 
  this 
  genus 
  from 
  

   Emathion 
  is 
  obscure. 
  Neglecting 
  the 
  form 
  of 
  the 
  antenna? 
  as 
  possibly 
  sexual, 
  and 
  the 
  fourth 
  

   tarsal 
  joint, 
  as 
  it 
  is 
  not 
  lobed 
  in 
  one 
  species 
  of 
  Emathion 
  above 
  described, 
  we 
  find 
  no 
  differ- 
  

   ences 
  left, 
  except 
  that, 
  in 
  the 
  present 
  genus, 
  the 
  first 
  joint 
  of 
  the 
  anterior 
  tarsi 
  is 
  as 
  long 
  

   as 
  the 
  three 
  following: 
  the 
  fourth 
  joint 
  is 
  two-thirds 
  the 
  length 
  of 
  the 
  third, 
  and 
  cylindri- 
  

   cal; 
  and 
  the 
  plates 
  of 
  the 
  posterior 
  coxa? 
  are 
  very 
  much 
  more 
  dilated 
  internally, 
  and 
  at 
  the 
  

   middle 
  extend 
  much 
  farther 
  than 
  at 
  the 
  inner 
  margin. 
  

  

  Fornax 
  Lap. 
  

   Among 
  our 
  species 
  of 
  this 
  genus, 
  which 
  is 
  synonymous 
  with 
  Dirhagus 
  Esch., 
  are 
  some 
  

   in 
  which 
  the 
  claws 
  of 
  the 
  tarsi 
  are 
  suddenly 
  dilated 
  at 
  the 
  base, 
  with 
  the 
  extremity 
  of 
  the 
  

   dilated 
  portion 
  forming 
  a 
  prominent 
  tooth. 
  The 
  largest 
  of 
  these 
  species 
  is 
  the 
  type 
  of 
  

   Newman's 
  genus 
  Onychodon. 
  The 
  species 
  separated 
  by 
  me, 
  under 
  the 
  name 
  Isarthrus, 
  

   must 
  also 
  be 
  placed 
  in 
  this 
  genus, 
  as 
  the 
  slight 
  difference 
  in 
  the 
  length 
  of 
  the 
  third 
  joint 
  

   vol. 
  x.— 
  70 
  

  

  