﻿12 
  Cleridce 
  of 
  the 
  United 
  States. 
  

  

  and 
  undefined 
  by 
  any 
  prominent 
  trait. 
  On 
  the 
  other 
  hand, 
  

   the 
  tendency 
  of 
  Dr. 
  King's 
  arrangement 
  is 
  to 
  merge 
  together 
  

   some 
  groups 
  which, 
  by 
  their 
  well 
  characterized 
  forms, 
  no 
  less 
  

   than 
  by 
  their 
  habits 
  of 
  life, 
  are 
  to 
  be 
  considered 
  distinct 
  : 
  for 
  

   this 
  reason, 
  I 
  have 
  preferred 
  retaining 
  Hydrocera 
  separate 
  

   from 
  Clerus. 
  The 
  form 
  and 
  position 
  of 
  the 
  emargination 
  of 
  

   the 
  eyes 
  seems 
  also 
  a 
  character 
  of 
  too 
  much 
  importance 
  to 
  be 
  

   neglected, 
  and 
  I 
  have, 
  therefore, 
  continued 
  Cymatodera 
  dis- 
  

   tinct 
  from 
  Tilliis, 
  and 
  Phyllobaenus 
  (Spin.) 
  and 
  Ichnea 
  (Lap.) 
  

   separate 
  from 
  Enoplium. 
  

  

  On 
  the 
  affinities 
  of 
  this 
  group 
  I 
  have 
  nothing 
  new 
  to 
  

   add, 
  having 
  had 
  no 
  opportunity 
  of 
  studying 
  the 
  transforma- 
  

   tions. 
  For 
  this 
  subject 
  I 
  refer 
  the 
  student 
  to 
  the 
  interesting 
  

   essays 
  of 
  Klug 
  and 
  Spinola. 
  

  

  TILLUS 
  Fabr. 
  

  

  1. 
  collaris, 
  " 
  antennarum 
  serra 
  1-articulata, 
  ariiculis 
  

   plus 
  (sic 
  !) 
  longiorihus 
  quam 
  latioribiis." 
  Long. 
  2 
  lin. 
  

  

  Spin, 
  i., 
  98, 
  tab. 
  2, 
  fig 
  6. 
  

  

  Niger, 
  prothorace 
  disco 
  rufo, 
  utrinque 
  constricto, 
  medio 
  

   dilatato, 
  elytris 
  punotato-striatis, 
  stria 
  ll^a 
  pone 
  medium 
  

   obliterata. 
  (mihi 
  ignotus.) 
  

  

  2. 
  pectinicornis, 
  " 
  antennis 
  hipectinatis, 
  ater, 
  thorace 
  

   postice 
  valde 
  coarctato, 
  capite 
  humerisque 
  rujis.^' 
  Long. 
  4 
  lin. 
  

  

  Klug, 
  270, 
  tab. 
  2, 
  fig. 
  2. 
  

  

  "Elytra 
  confertim 
  punctato-striata, 
  punctis 
  excavatis, 
  sat 
  

   magnis, 
  basi 
  rufa." 
  (mihi 
  ignotus.) 
  

  

  PERYLYPUS 
  Spin. 
  

   1. 
  carbonarius, 
  ^^ 
  niger 
  nitidm, 
  paulo 
  puhescens, 
  

  

  