﻿258 
  Mr. 
  H. 
  W. 
  Bates' 
  additions 
  to 
  the 
  

  

  I 
  have 
  failed 
  to 
  discover 
  any 
  trace 
  of 
  the 
  usual 
  seti- 
  

   ferous 
  puncture 
  at 
  or 
  near 
  the 
  hind 
  angles 
  of 
  the 
  thorax 
  

   in 
  the 
  ten 
  examples 
  in 
  hand 
  of 
  this 
  species 
  The 
  absence 
  

   of 
  this 
  posterior 
  puncture 
  occurs 
  in 
  a 
  few 
  other 
  Central 
  

   American 
  species, 
  viz., 
  C. 
  si^hodroides, 
  C. 
  championi, 
  and 
  

   others, 
  of 
  which 
  I 
  have 
  examined 
  a 
  large 
  number, 
  and 
  

   in 
  which 
  the 
  anterior 
  puncture 
  is 
  always 
  present. 
  In 
  

   the 
  allied 
  Pacific 
  genera, 
  Coljjodisciis 
  and 
  Barypristus, 
  

   according 
  to 
  Dr. 
  Sharp, 
  their 
  founder, 
  the 
  posterior 
  punc- 
  

   ture 
  is 
  present 
  and 
  the 
  anterior 
  absent, 
  and 
  in 
  Mctro- 
  

   nemus 
  (Sharp) 
  both 
  punctures 
  are 
  wanting. 
  A 
  more 
  

   remarkable 
  feature 
  of 
  C. 
  rectilineiis 
  and 
  C. 
  spliodroides 
  

   is 
  the 
  presence 
  of 
  only 
  one 
  supra-orbital 
  seta, 
  the 
  number 
  

   of 
  setae, 
  one 
  or 
  two, 
  being 
  a 
  character 
  on 
  which 
  Dr. 
  Horn 
  

   founds 
  his 
  primary 
  divisions 
  of 
  the 
  main 
  body 
  of 
  the 
  

   Carahidce. 
  

  

  Colpodes 
  segregatus. 
  (PL 
  XIV., 
  fig. 
  6). 
  

  

  C. 
  chloreo 
  (Bates) 
  et 
  C. 
  monacho 
  (Dej.) 
  affinissimiis, 
  sed 
  differt 
  

   thorace 
  ovato 
  angulis 
  posticis 
  rotundatis. 
  Laete 
  viridis 
  interdum 
  

   elytris 
  disco 
  violaceis, 
  antennis 
  piceis 
  partim 
  rufescentibus, 
  palpis 
  

   et 
  tarsis 
  pallidioribus. 
  Caput 
  gracile 
  ovatum 
  collo 
  paullo 
  eon- 
  

   stricto. 
  Thorax 
  ovatus 
  angiilis 
  posticis 
  omnino 
  rotundatis 
  lateri- 
  

   bus 
  nullo 
  modo 
  siuuatis, 
  puncto 
  setifero 
  in 
  margine 
  elevato 
  a 
  basi 
  

   remoto. 
  Elytra 
  elongato-ovata, 
  convexa, 
  subpunctulato-striata, 
  

   interstitiis 
  planis 
  interdum 
  convexis. 
  Metathoracis 
  episterua 
  medio- 
  

   criter 
  elongata 
  et 
  angustata. 
  Tarsi 
  4 
  postici 
  dorso 
  bisulcati, 
  

   anticorum 
  articulo 
  4to 
  angulis 
  productis 
  paullulum 
  inaequalibus, 
  

   4 
  posticis 
  triangularibus. 
  Long. 
  12^ 
  — 
  14 
  millim., 
  ^ 
  ? 
  . 
  

  

  Hab. 
  Cuernavaca 
  (Hoge). 
  

  

  Many 
  examples 
  of 
  this 
  species, 
  or 
  subspecies, 
  were 
  

   included 
  in 
  the 
  series 
  of 
  C. 
  chloreus 
  obtained 
  by 
  Herr 
  

   Hoge 
  at 
  Cuernavaca. 
  The 
  totally 
  difterent 
  form 
  of 
  the 
  

   thoracic 
  hind 
  angles 
  (which 
  in 
  C. 
  chloreus 
  and 
  C. 
  

   monachus 
  are 
  nearly 
  rectangular, 
  preceded 
  by 
  a 
  well- 
  

   marked 
  sinuation 
  of 
  the 
  sides, 
  and 
  the 
  setiferous 
  punc- 
  

   ture 
  implanted 
  close 
  to 
  the 
  apex 
  of 
  the 
  angle) 
  is 
  almost 
  

   the 
  only 
  difference. 
  The 
  metathoracic 
  episterna 
  in 
  

   most 
  of 
  the 
  examples 
  are 
  decidedly 
  shorter, 
  but 
  they 
  are 
  

   a 
  little 
  variable 
  in 
  length 
  in 
  C. 
  chloreus. 
  There 
  are 
  no 
  

   intermediate 
  forms 
  in 
  the 
  series. 
  

  

  