﻿Carabideous 
  fauna 
  of 
  Mexico. 
  225 
  

  

  Mexico, 
  Puebla, 
  and 
  other 
  localities 
  on 
  the 
  central 
  

   plateau. 
  They 
  are 
  of 
  elongate-ovate 
  form, 
  more 
  or 
  less 
  

   slender, 
  with 
  rounded 
  thorax, 
  having 
  generally 
  a 
  narrow 
  

   flattened 
  space 
  accompanying 
  the 
  thickened 
  and, 
  even 
  

   near 
  the 
  hind 
  angle, 
  only 
  moderately 
  reflexed 
  lateral 
  

   margin, 
  broadly 
  rounded 
  hind 
  angles, 
  and 
  a 
  vague 
  basal 
  

   fovea 
  on 
  each 
  side 
  rarely 
  with 
  distinct 
  traces 
  of 
  punctua- 
  

   tion. 
  The 
  forehead 
  is 
  always 
  rather 
  thickly 
  punctured 
  ; 
  

   the 
  elytra 
  very 
  convex, 
  the 
  convexity 
  beginning 
  gradually 
  

   from 
  the 
  base, 
  and 
  the 
  posterior 
  declivity 
  being 
  steep 
  ; 
  

   the 
  surface 
  faintly 
  striate-punctulate, 
  rarely 
  quite 
  smooth. 
  

   The 
  length 
  is 
  22 
  — 
  25 
  millim. 
  The 
  punctured 
  forehead 
  

   always 
  distinguishes 
  it 
  from 
  C. 
  Icevigatiim, 
  which 
  is 
  a 
  

   smaller 
  insect. 
  The 
  following 
  seem 
  to 
  be 
  nothing 
  more 
  

   than 
  varieties 
  : 
  — 
  

  

  Var. 
  C. 
  pimctulicolle. 
  — 
  Head 
  punctured 
  to 
  the 
  vertex 
  ; 
  

   thorax 
  broader 
  and 
  with 
  distinctly 
  wider 
  explanated 
  

   lateral 
  margins 
  ; 
  the 
  basal 
  foveae, 
  base, 
  and 
  sides 
  punc- 
  

   tured. 
  Elytra 
  faintly 
  striate-punctate, 
  as 
  in 
  the 
  type- 
  

   form, 
  but 
  in 
  addition 
  with 
  three 
  rows 
  of 
  small 
  but 
  in- 
  

   conspicuous 
  foveoles. 
  Long. 
  22 
  — 
  27 
  millim., 
  S" 
  5 
  . 
  

  

  Hab. 
  Santa 
  Clara, 
  in 
  Chihuahua; 
  Durango 
  city; 
  

   Monterey, 
  in 
  Nuevo 
  Leon 
  (Hdge). 
  

  

  The 
  thorax 
  is 
  wider 
  and 
  a 
  little 
  more 
  quadrate 
  in 
  

   Durango 
  examples 
  ; 
  in 
  the 
  single 
  specimen 
  from 
  Monte- 
  

   rey, 
  on 
  the 
  contrary, 
  it 
  is 
  much 
  narrowed 
  behind. 
  

  

  Var. 
  C. 
  exiolanaticolle. 
  — 
  Head 
  with 
  sparser 
  and 
  stronger 
  

   punctures 
  ; 
  thorax 
  behind 
  with 
  wider 
  explanated 
  margin 
  

   and 
  more 
  broadly 
  rounded 
  hind 
  angles, 
  smooth. 
  The 
  

   rest 
  as 
  in 
  the 
  type-form. 
  Long. 
  22 
  — 
  27 
  millim., 
  ^ 
  ? 
  . 
  

  

  Hab. 
  Tupataro, 
  in 
  Guanajuato 
  {Hdge). 
  

  

  Var. 
  C. 
  microgonum. 
  — 
  Precisely 
  like 
  the 
  more 
  slender 
  

   examples 
  of 
  the 
  type-form, 
  with 
  the 
  remarkable 
  excep- 
  

   tions 
  that 
  the 
  hind 
  angles 
  of 
  the 
  thorax, 
  instead 
  of 
  being 
  

   broadly 
  rounded, 
  are 
  acute, 
  projecting 
  a 
  little 
  beyond 
  

   the 
  line 
  of 
  the 
  basal 
  margin, 
  and 
  that 
  the 
  base 
  of 
  the 
  

   thorax 
  is 
  also 
  distinctly 
  punctured. 
  

  

  Hab. 
  Jalapa 
  {Hdge), 
  Mexico 
  City 
  {Flohr). 
  Three 
  

   examples. 
  

  

  