﻿Carahid 
  eons 
  fauna 
  of 
  Mexico. 
  265 
  

  

  L. 
  subauratus 
  ; 
  the 
  head 
  is 
  more 
  closely 
  punctured, 
  the 
  

   punctures 
  in 
  L. 
  subauratus 
  being 
  few 
  and 
  large, 
  and, 
  on 
  

   the 
  other 
  hand, 
  the 
  interstices 
  are 
  smooth, 
  so 
  that 
  the 
  

   surface 
  is 
  more 
  brilliant. 
  The 
  antennae 
  in 
  L. 
  subauratus 
  

   are 
  much 
  stouter, 
  and, 
  with 
  the 
  legs, 
  are 
  fulvous. 
  

  

  Casnonia 
  sulcicollis. 
  (PI. 
  XIV., 
  fig. 
  8). 
  

   C. 
  pictce 
  et 
  C. 
  pennsylvanicce 
  affinis. 
  Multo 
  minor 
  et 
  minus 
  

   gracilis. 
  Nigra, 
  polita, 
  elytris 
  caerulescentibus 
  immaculatis, 
  an- 
  

   tennis 
  articulis 
  2 
  — 
  3 
  et 
  4to 
  ad 
  basin, 
  rufis, 
  pedibus 
  flavo-testaceis, 
  

   femoribus 
  tibiisque 
  ad 
  apicem 
  et 
  tarsis 
  fuscis. 
  Caput 
  et 
  oculi 
  sicut 
  in 
  

   C. 
  pennsylvanica 
  illud 
  sat 
  paullo 
  minus 
  elongatum. 
  Thorax 
  paullo 
  

   brevior, 
  convexus, 
  ad 
  medium 
  gracile 
  ovatus 
  prope 
  apicem 
  leviter 
  

   constrictus 
  angulis 
  anticis 
  productis 
  acutis 
  ; 
  sutura 
  pronoti 
  utrinque 
  

   a 
  supra 
  perspicua 
  sulciformi, 
  prosterno 
  grosse 
  punctato. 
  Elytra 
  a 
  

   basi 
  usque 
  ad 
  paullo 
  ultra 
  medium 
  grosse 
  striato-punctata, 
  triente 
  

   apicali 
  laevissima. 
  Long. 
  6^ 
  millim. 
  

  

  Hab. 
  Ciudad, 
  in 
  Durango 
  (Hdge). 
  

  

  Mr. 
  Flohr 
  has 
  also 
  sent 
  us 
  examples 
  of 
  this 
  distinct 
  

   species 
  from 
  the 
  same 
  locality. 
  

  

  Casnonia 
  lioptera. 
  

  

  C. 
  tetrastigmcB 
  (Chaud.) 
  et 
  C. 
  lineolatce 
  (Bates) 
  aflBnissima 
  ; 
  

   dififert 
  elytris 
  callo 
  praeapicali 
  carentibus, 
  etc. 
  Gracilis, 
  nigro-polita, 
  

   antennis 
  articulis 
  2 
  — 
  4 
  rufis, 
  8 
  — 
  9 
  testaceo-albis, 
  femoribus 
  dimidio 
  

   basali 
  (cum 
  trochanteribus 
  posticis) 
  tibiisque 
  annulo 
  mediano, 
  

   albis 
  ; 
  elytris 
  utrinque 
  macula 
  unica 
  (laterali 
  prope 
  apicem) 
  tes- 
  

   taceo-alba. 
  Caput 
  Iffivissimum 
  antice 
  convexum, 
  post 
  oculos 
  

   prominentes 
  elongatum 
  rectilineatim 
  angustatum, 
  cello 
  brevissimo. 
  

   Thorax 
  elongatus, 
  angustus, 
  usque 
  longe 
  post 
  medium 
  gradatim 
  

   leviter 
  dilatatus, 
  perparum 
  subtiliter 
  transverse 
  striatus, 
  sutura 
  

   prosternali 
  tenuissima. 
  Elytra 
  angusta 
  oblonga, 
  angulis 
  exteri- 
  

   oribus 
  apice 
  sat 
  productis 
  ; 
  lineis 
  punctorum 
  abbreviatis 
  prope 
  

   basin 
  exceptis 
  fere 
  Isevia, 
  sed 
  striis 
  punctulatis, 
  dorsalibus 
  tenuis- 
  

   simis 
  sub 
  lente 
  (juxta 
  maculam 
  prseapicalem 
  profundioribus) 
  per- 
  

   spicuis 
  ; 
  fovea 
  utrinque 
  magna 
  prope 
  basin 
  ; 
  callo 
  apud 
  maculam 
  

   praeapicalem 
  nullo. 
  Long. 
  9i 
  millim, 
  

  

  Hab. 
  Atoyac, 
  in 
  Vera 
  Cruz 
  {Flohr 
  in 
  coll. 
  Bates). 
  

  

  Hoge's 
  collections 
  do 
  not 
  contain 
  this 
  species, 
  which 
  

   might 
  be 
  considered 
  a 
  variety 
  of 
  C. 
  tetrastigma 
  (Chaud.) 
  

   were 
  it 
  not 
  for 
  the 
  absence 
  of 
  praeapical 
  callus, 
  which 
  is 
  

  

  