﻿262 
  Mr. 
  H. 
  W. 
  Bates' 
  additions 
  to 
  the 
  

  

  fuscis, 
  articulis 
  basalibus 
  palpis 
  et 
  pedibus 
  rufo-testaceis, 
  tareis 
  in- 
  

   fuscatis. 
  Thorax 
  sicut 
  in 
  B. 
  Championi, 
  B. 
  aplicerodero 
  et 
  

   affinibus 
  latus, 
  sphaeroidalis 
  ; 
  elytris 
  sat 
  grosse 
  punctato-striatis, 
  

   striis 
  2 
  — 
  7 
  gradatim 
  brevioribus. 
  Long. 
  3^ 
  — 
  4 
  millim. 
  

  

  Hah. 
  Ventanas 
  and 
  Ciudad, 
  in 
  Durango 
  (Hoge). 
  

  

  Two 
  examples 
  only. 
  These, 
  B. 
  sphceroderum 
  and 
  B. 
  

   Chamjjioni, 
  are 
  so 
  closely 
  allied 
  that 
  they 
  may 
  hereafter 
  

   prove 
  to 
  be 
  only 
  modifications 
  of 
  one 
  variable 
  species. 
  

  

  Bembidium 
  (Peryphus) 
  macrogonum. 
  

   B. 
  mexicano 
  (Dej.) 
  proximo 
  affine, 
  sed 
  differ 
  t 
  thoracis 
  angulis 
  

   posticis 
  prolongatis 
  exstantibus 
  carinulaque 
  rectiori 
  usque 
  ad 
  basin 
  

   (juxta 
  angulum) 
  extensum. 
  Cyaneo-viride 
  politum, 
  antennarom 
  

   articulis 
  1 
  — 
  2, 
  palpis 
  ad 
  basin 
  pedibusque 
  flavo-testaceis 
  (tibiis 
  pauUo 
  

   obscuris), 
  elytris 
  prope 
  apicem 
  macula 
  obliqua 
  transversa 
  rufo- 
  

   testacea. 
  Thorax 
  antice 
  sat 
  late 
  rotundatus 
  lateribus 
  ante 
  basin 
  

   valde 
  sinuatis, 
  angulis 
  posticis 
  exstantibus, 
  basi 
  dilatata 
  latitudini 
  

   niajori 
  anteriori 
  fere 
  squali, 
  sulculo 
  marginali 
  laterali 
  angusto 
  

   usque 
  ad 
  angulum 
  posticum 
  ducto 
  carinulaque 
  recta. 
  Elytra 
  

   dorso 
  planata, 
  striis 
  punctulatis 
  sex 
  interioribus 
  (praecipue 
  in 
  indi- 
  

   viduis 
  minoribus) 
  usque 
  prope 
  apicem 
  impressis. 
  Long. 
  5^ 
  — 
  

   6 
  millim. 
  

  

  Hab. 
  Cordova, 
  in 
  Vera 
  Cruz 
  (iJo^e). 
  Five 
  examples. 
  

  

  Bembidium 
  {Peryyhus) 
  erosum, 
  Motschulsky, 
  Bull. 
  Mosc, 
  

   iii., 
  127 
  ; 
  Manrierheimii, 
  Leconte, 
  Ann. 
  Lye. 
  N. 
  

   York, 
  v., 
  190. 
  

  

  Hah. 
  Chihuahua 
  City 
  (Hoge) 
  ; 
  Paso 
  del 
  Norte 
  {Flohr) 
  ; 
  

   North 
  America 
  ; 
  California. 
  

  

  A 
  large 
  series 
  of 
  examples 
  offering 
  very 
  little 
  variation 
  

   in 
  markings 
  or 
  in 
  size 
  (8|- 
  millim.), 
  and 
  differing 
  in 
  no 
  

   essential 
  respect 
  from 
  Californian 
  representatives 
  of 
  the 
  

   species. 
  It 
  resembles 
  very 
  closely 
  large 
  examples 
  of 
  

   B. 
  mexicanum 
  var. 
  Salkei, 
  in 
  which 
  the 
  elytra 
  have 
  a 
  

   large 
  humeral 
  reddish 
  spot, 
  or 
  the 
  colouring 
  is 
  spread 
  

   over 
  the 
  whole 
  base 
  of 
  the 
  elytra, 
  a 
  form 
  which 
  occurs 
  

   in 
  Oaxaca, 
  near 
  Mexico 
  City, 
  and 
  in 
  the 
  same 
  locality 
  

   as 
  B. 
  erosum, 
  viz.. 
  Chihuahua 
  City. 
  B. 
  erosum 
  may, 
  

   however, 
  be 
  distinguished 
  by 
  the 
  shallower 
  fovea 
  and 
  

   thickly 
  punctured 
  base 
  of 
  the 
  thorax, 
  and 
  the 
  absence 
  

   of 
  all 
  trace 
  of 
  the 
  short 
  oblique 
  carina 
  near 
  the 
  hind 
  

   angle, 
  which, 
  though 
  sometimes 
  very 
  faint, 
  is 
  never 
  

  

  