﻿260 
  Mr. 
  H. 
  W. 
  Bates' 
  additions 
  to 
  the 
  

  

  parvus 
  cordato-qiiadratus, 
  transversus, 
  lateribus 
  explanatis 
  rufo- 
  

   translucentibus 
  ante 
  basin 
  breviter 
  sinuatis, 
  angulis 
  posticis 
  ex- 
  

   stantibus 
  subacutis, 
  reflexis. 
  Elytrorum 
  striae 
  apice 
  nullo 
  modo 
  

   proftindiores. 
  Metathoracis 
  episterna 
  elongata, 
  angustata. 
  Tarsi 
  

   gracillimi 
  4 
  antici 
  articulo 
  4to 
  pauUo 
  inaequaliter 
  producto, 
  2 
  pos- 
  

   tici 
  triangulares 
  angulis 
  paullo 
  productis. 
  Long. 
  8 
  millim., 
  ^ 
  $ 
  . 
  

  

  Hab. 
  Zacualtipan, 
  in 
  Hidalgo 
  {Hdge). 
  

  

  Colpodes 
  coliimbinus, 
  Chaud. 
  

   Herr 
  Hoge 
  met 
  with 
  this 
  insect 
  at 
  Jalapa. 
  

  

  Colpodes 
  porrectus, 
  Chaud. 
  

  

  We 
  have 
  received 
  examples 
  of 
  this 
  species 
  from 
  

   Omilteme, 
  in 
  Guerrero 
  {Smith), 
  and 
  Amecameca, 
  in 
  

   Morelos 
  (Hoge). 
  

  

  Pogonus 
  (Diplochcetus) 
  emaciatus. 
  

   Augustus, 
  sublinearis, 
  rufo-testaceus 
  politus. 
  Caput 
  post 
  oculos 
  

   incrassatum. 
  Thorax 
  elongatus, 
  postice 
  gradatim 
  angustatus, 
  lateri- 
  

   bus 
  paullulum 
  rotundatis, 
  ante 
  basin 
  leviter 
  sinuatis, 
  angulis 
  pos- 
  

   ticis 
  subrectis 
  etsi 
  baseos 
  versus 
  angulum 
  obliquato, 
  fovea 
  utrinque 
  

   magna 
  Isevi, 
  carinula 
  ab 
  angulo 
  suboblique 
  versus 
  discum 
  extensa. 
  

   Elytra 
  parallela, 
  sed 
  prope 
  liumeros 
  paullo 
  rotundato-angustata, 
  

   basi 
  thoracis 
  latiora, 
  margine 
  basali 
  interrupto 
  carina 
  valida 
  ab 
  

   humeri 
  basi 
  usque 
  ad 
  interstitium 
  5um 
  curvata 
  ; 
  sat 
  fortiter 
  punc- 
  

   tulato-striata, 
  striis 
  (4ta, 
  6ta 
  et 
  7ma 
  exceptis) 
  usque 
  ad 
  basin 
  im- 
  

   pressis, 
  duabus 
  marginaUbus 
  multo 
  latioribus 
  et 
  longe 
  ante 
  basin 
  

   conjunctis 
  ; 
  interstitiis 
  convexis 
  3io 
  unipunctato 
  raro 
  bipunctato. 
  

   Long. 
  6 
  — 
  6^ 
  millim. 
  

  

  Hah. 
  Mazatlan 
  {Hoge). 
  

  

  This 
  species 
  seems 
  to 
  be 
  distinct 
  from 
  P. 
  rutilus 
  

   (Chevr.) 
  and 
  P. 
  parallelus 
  (Lee), 
  both 
  belonging 
  to 
  the 
  

   genus 
  or 
  subgenus 
  Diplochcetus, 
  the 
  descriptions 
  of 
  which 
  

   specially 
  mention 
  that 
  the 
  elytral 
  striae 
  are 
  obliterated 
  

   at 
  the 
  base, 
  and 
  do 
  not 
  fit 
  the 
  Mazatlan 
  insect 
  in 
  other 
  

   respects. 
  P. 
  rutilus 
  is 
  from 
  Cuba, 
  Colombia, 
  and 
  

   Venezuela, 
  P. 
  parallela 
  is 
  from 
  Texas. 
  P. 
  depressus 
  

   (Lee), 
  which 
  has 
  the 
  curved 
  humeral 
  carina 
  distinctive 
  

   of 
  the 
  Diplochcetus 
  group, 
  differs 
  from 
  our 
  insect 
  in 
  being 
  

   *' 
  strongly 
  depressed," 
  and 
  in 
  having 
  three 
  dorsal 
  punc- 
  

   tures. 
  

  

  