﻿256 
  Mr. 
  H. 
  W. 
  Bates' 
  additions 
  to 
  the 
  

  

  Thorax 
  late 
  ovatus, 
  angulis 
  anticis 
  prominentibus, 
  posticis 
  obtusis- 
  

   simis 
  sed 
  distinctis, 
  margine 
  basali 
  prope 
  angulum 
  valde 
  obliquato, 
  

   lateribus 
  explanato-reflexis 
  ad 
  medium 
  rotundatis, 
  ante 
  basin 
  leviter 
  

   sinuatis. 
  Elytra 
  ovata, 
  basi 
  arcuato 
  versus 
  liumeros 
  ascendenti, 
  

   humeris 
  subacutis, 
  apice 
  obtuse 
  rotundata 
  paullulum 
  sinuata 
  ; 
  

   fortiter 
  striata 
  striis 
  omnibus 
  integris, 
  interstitiis 
  pauUo 
  convexis 
  

   tertio 
  tripunctato. 
  Metathoracis 
  episterna 
  latitudine 
  basali 
  baud 
  

   longiora. 
  Tarsi 
  4 
  antici 
  articulo 
  4to 
  brevissime 
  bilobato, 
  2 
  postici 
  

   angulis 
  paullo 
  productis 
  inaequalibus 
  ; 
  4 
  postici 
  utrinque 
  sulculati 
  

   dorso 
  subcarinati 
  ; 
  omnes 
  articulo 
  unguiculari 
  subtus 
  ciliato. 
  

   Long. 
  13 
  millim., 
  ^ 
  ? 
  . 
  

  

  Hah. 
  Ciudad 
  and 
  Refugio, 
  in 
  Durango 
  (Hoge). 
  Many 
  

   examples. 
  

  

  Colpodes 
  St 
  en 
  08. 
  

  

  C. 
  lugens 
  (Dej.) 
  affinis 
  ; 
  multo 
  angustior, 
  gracile 
  oblongns 
  supra 
  

   depressus. 
  Piceo-niger, 
  palpis 
  antennis 
  et 
  tarsis 
  fulvo-rufis, 
  supra 
  

   sericeo-subopacus 
  sed 
  ssepe 
  nitidus. 
  Caput 
  ovatum 
  relative 
  parvum 
  

   nee 
  sicut 
  in 
  C. 
  lugens 
  late 
  ovatum. 
  Thorax 
  sat 
  angustus 
  quadra- 
  

   tus, 
  ante 
  medium 
  mediocriter 
  dilatato-rotundatus, 
  j)ost 
  medium 
  

   sinuatus 
  vix 
  angustatus, 
  angulis 
  posticis 
  exstantibus 
  subacutis, 
  seta 
  

   posteriori 
  juxta 
  anguli 
  apicem 
  sita. 
  Elytra 
  elongato-ovata 
  fere 
  

   oblonga, 
  depressa, 
  striata 
  striis 
  hie 
  illic 
  siibpunctulatis 
  interstitiis 
  

   pauUulum 
  convexis 
  ; 
  apice 
  oblique 
  sinuata. 
  Metathoracis 
  episterna 
  

   brevia, 
  latitudine 
  basali 
  vix 
  longiora. 
  Tarsi 
  4 
  postici 
  lateraliter 
  

   sulculati, 
  omnes 
  articulo 
  4to 
  lato 
  angnlisque 
  obtuse 
  paullo 
  pro- 
  

   ductis 
  parum 
  inaequalibus, 
  articulo 
  5to 
  subtus 
  turn 
  glabro 
  turn 
  

   parce 
  ciliato. 
  Long. 
  9 
  — 
  10 
  millim., 
  ^ 
  5 
  . 
  

  

  Hah. 
  Toluca, 
  Amecameca, 
  in 
  Morelos 
  (Hoge). 
  A 
  

   large 
  series 
  of 
  examples. 
  

  

  In 
  form 
  and 
  many 
  points 
  of 
  structure 
  intermediate 
  

   between 
  C. 
  lugens 
  and 
  C. 
  semiopacus, 
  and 
  closely 
  allied 
  

   to 
  C. 
  Forreri 
  (Bates). 
  The 
  metathoracic 
  epimera 
  are 
  

   decidedly 
  longer 
  and 
  relatively 
  narrower 
  than 
  in 
  C. 
  

   lugens, 
  and 
  the 
  long 
  and 
  well-marked 
  sinuation 
  of 
  the 
  

   sides 
  of 
  the 
  thorax 
  and 
  produced 
  hind 
  angles 
  distinguish 
  

   it 
  from 
  both 
  species. 
  The 
  examples 
  from 
  Amecameca 
  

   are 
  generally 
  of 
  a 
  deeper 
  black 
  than 
  those 
  from 
  Toluca, 
  

   the 
  head 
  and 
  thorax 
  being 
  highly 
  polished, 
  and 
  the 
  

   elytra 
  sometimes 
  subopaque. 
  

  

  