﻿472 
  South 
  American 
  species 
  of 
  Diahrotica. 
  

  

  scutelloque 
  nigris 
  ; 
  tborace 
  trifoveolato 
  ; 
  elytris 
  sat 
  crebre 
  punc- 
  

   tatis, 
  utrisque 
  raacula 
  parva 
  oblonga, 
  infra 
  basin 
  prope 
  suturam 
  

   posita, 
  fusca, 
  plagisque 
  tribus, 
  prima 
  subrotundata 
  callum 
  humera- 
  

   lum 
  amplectente, 
  duabusque 
  transYersis, 
  anguste 
  quadrato- 
  

   oblongis, 
  una 
  prope 
  medium, 
  altera 
  inter 
  medium 
  et 
  apicem 
  positis, 
  

   nigris. 
  

  

  Long. 
  4| 
  mm, 
  

  

  Hah. 
  Brazil. 
  

  

  Head 
  not 
  longer 
  than 
  broad, 
  triangular 
  ; 
  clypeus 
  transverse, 
  

   excavated 
  on 
  either 
  side, 
  medial 
  line 
  elevated 
  longitudinally 
  into 
  a 
  

   broad 
  but 
  ill-defined 
  ridge 
  ; 
  antennae 
  rather 
  more 
  than 
  half 
  the 
  

   length 
  of 
  the 
  body, 
  slightly 
  thickened 
  towards 
  the 
  apex 
  ; 
  the 
  second 
  

   joint 
  short, 
  subovate, 
  the 
  third 
  nearly 
  twice 
  its 
  length, 
  the 
  foiu'th 
  

   scarcely 
  longer 
  than 
  the 
  third 
  ; 
  the 
  four 
  lower 
  joints 
  piceo-fiilvous, 
  

   the 
  rest 
  black. 
  Thorax 
  nearly 
  twice 
  as 
  broad 
  as 
  long 
  ; 
  sides 
  

   rounded, 
  converging 
  towards 
  the 
  base 
  and 
  apex, 
  sinuate 
  in 
  front 
  of 
  

   the 
  basal 
  angle 
  ; 
  above 
  convex, 
  minutely 
  punctured 
  ; 
  disk 
  on 
  either 
  

   side 
  impressed 
  with 
  a 
  large 
  round 
  fovea; 
  on 
  the 
  hinder 
  disk, 
  just 
  

   in 
  front 
  of 
  the 
  basal 
  margin, 
  is 
  a 
  third 
  impression, 
  smaller 
  and 
  

   oblong 
  ; 
  arranged 
  in 
  a 
  curve 
  on 
  the 
  anterior 
  disk 
  are 
  four 
  small 
  

   oblong 
  black 
  spots 
  ; 
  the 
  middle 
  fovea 
  (in 
  the 
  only 
  specimen 
  before 
  

   me) 
  is 
  stained 
  with 
  fuscous 
  ; 
  it 
  is 
  probable 
  that 
  in 
  some 
  cases 
  it 
  is 
  

   covered 
  with 
  a 
  similarly 
  coloured 
  spot 
  to 
  those 
  on 
  the 
  anterior 
  

   disk. 
  Elytra 
  ovate, 
  dilated 
  posteriorly, 
  regiilarly 
  rotmded 
  at 
  the 
  

   apices 
  ; 
  above 
  convex, 
  faintly 
  depressed 
  along 
  the 
  suture 
  below 
  the 
  

   basilar 
  space, 
  distinctly 
  punctured. 
  [Baly.] 
  

  

  