﻿South 
  American 
  species 
  of 
  Diahrotica. 
  449 
  

  

  with 
  these 
  two 
  together 
  shghtly 
  longer 
  than 
  the 
  fourth. 
  Prothorax 
  

   transverse, 
  nitid, 
  testaceous 
  yellow 
  ; 
  the 
  sides 
  slightly 
  and 
  gradually 
  

   diverging 
  for 
  about 
  two-thirds 
  of 
  the 
  way 
  from 
  the 
  base, 
  thence 
  

   converging 
  to 
  the 
  apex 
  ; 
  the 
  disk 
  with 
  two 
  shallow 
  foveolate 
  de- 
  

   pressions. 
  Elytra 
  thickly 
  and 
  finely 
  punctured, 
  with 
  the 
  punctures 
  

   thicker 
  and 
  somewhat 
  stronger 
  towards 
  the 
  middle 
  ; 
  pale 
  yellow, 
  

   with 
  the 
  basal 
  fourth 
  (somewhat 
  broader 
  along 
  the 
  suture) 
  and 
  a 
  

   transverse 
  band 
  behind 
  the 
  middle, 
  black. 
  The 
  under 
  side 
  of 
  the 
  

   body, 
  the 
  prothorax 
  excepted, 
  the 
  tibiae, 
  and 
  tarsi, 
  black. 
  Femora 
  

   yellow, 
  with 
  the 
  tips 
  of 
  the 
  posterior 
  and 
  the 
  upper 
  side 
  of 
  the 
  

   apical 
  half 
  of 
  the 
  four 
  anterior 
  femora 
  black. 
  

  

  In 
  the 
  specimen 
  from 
  Colombia 
  the 
  legs, 
  excepting 
  

   the 
  anterior 
  coxae, 
  are 
  entirely 
  black. 
  

  

  87. 
  Diahrotica 
  insignita, 
  Baly. 
  

   Journ. 
  Linn. 
  Soc, 
  xix., 
  p. 
  256. 
  

   Hah, 
  Colombia. 
  

  

  88. 
  Diahrotica 
  Borrei, 
  Baly. 
  

   Ent. 
  Mo. 
  Mag., 
  xxv., 
  p. 
  253. 
  

  

  Anguste 
  oblongo-ovata, 
  postice 
  paullo 
  amphata, 
  convexa, 
  nigra, 
  

   nitida, 
  femoribus 
  antennis 
  apice 
  thoraceque 
  flavis, 
  hoc 
  quam 
  longo 
  

   fere 
  duplo 
  latiori, 
  laevi, 
  dorso 
  bifoveolato 
  ; 
  elytris 
  subcrebre 
  piinc- 
  

   tatis, 
  limbo 
  externo, 
  apice 
  dilatato, 
  fascia 
  lata 
  prope 
  medium 
  

   suturaque 
  postice 
  flavis. 
  

  

  Long. 
  6 
  — 
  6^ 
  mm. 
  

  

  Hah. 
  Brazil, 
  Tejuca, 
  Petropolis 
  (Gray). 
  

  

  Head 
  wedge-shaped, 
  slightly 
  longer 
  than 
  broad 
  ; 
  clypeus 
  clothed 
  

   with 
  adpressed 
  sinuous 
  hairs, 
  transverse, 
  its 
  upper 
  surface 
  with 
  a 
  

   broad 
  longitudinal 
  ridge 
  ; 
  antennae 
  filiform, 
  nearly 
  equal 
  to 
  the 
  

   body 
  in 
  length, 
  the 
  second 
  joint 
  short, 
  oblong, 
  the 
  third 
  nearly 
  

   twice 
  its 
  length, 
  the 
  fourth 
  about 
  one-third 
  longer 
  than 
  the 
  third 
  ; 
  

   the 
  foTir 
  upper 
  joints, 
  the 
  extreme 
  apex 
  of 
  the 
  eleventh, 
  yellowish 
  

   white. 
  Thorax 
  nearly 
  twice 
  as 
  broad 
  as 
  long 
  ; 
  sides 
  straight 
  and 
  

   nearly 
  parallel 
  from 
  the 
  base 
  to 
  beyond 
  the 
  middle, 
  thence 
  

   obliquely 
  converging 
  towards 
  the 
  apex, 
  the 
  hinder 
  angle 
  slightly 
  

   produced, 
  acute 
  ; 
  upper 
  siu-face 
  shining, 
  nearly 
  impunctate, 
  middle 
  

   disk 
  with 
  two 
  large, 
  shallow, 
  ill- 
  defined 
  foveae. 
  Elytra 
  broadly 
  

   oblong, 
  scarcely 
  dilated 
  posteriorly, 
  obtusely 
  rounded 
  at 
  the 
  apex 
  ; 
  

   convex, 
  distinctly 
  punctured. 
  [Baly.] 
  

  

  D. 
  cruciata, 
  Baly 
  (Ent. 
  Mo. 
  Mag., 
  xxv., 
  p. 
  253) 
  is 
  

   merely 
  a 
  variety 
  of 
  this 
  species. 
  

  

  