﻿South 
  American 
  sjiecies 
  of 
  Diahrotica. 
  433 
  

  

  Bhort, 
  obovate, 
  the 
  third 
  and 
  fourth 
  equal, 
  each 
  nearly 
  twice 
  the 
  

   length 
  of 
  the 
  second. 
  Thorax 
  nearly 
  twice 
  as 
  broad 
  as 
  long 
  ; 
  sides 
  

   straight 
  and 
  nearly 
  parallel 
  from 
  the 
  base 
  to 
  beyond 
  the 
  middle, 
  

   thence 
  obliquely 
  converging 
  towards 
  the 
  apes, 
  anterior 
  and 
  pos- 
  

   terior 
  angles 
  acute 
  ; 
  above 
  convex, 
  impressed 
  on 
  the 
  hinder 
  disk 
  

   just 
  behind 
  the 
  medial 
  line 
  of 
  the 
  thorax 
  with 
  two 
  large 
  fovese. 
  

   Elytra 
  narrowly 
  oblong, 
  scarcely 
  dilated 
  posteriorly, 
  regularly 
  

   rounded 
  at 
  the 
  apices, 
  convex, 
  not 
  excavated 
  below 
  the 
  basilar 
  

   space, 
  rather 
  strongly 
  punctured, 
  the 
  puncturing 
  finer 
  towards 
  the 
  

   apex 
  ; 
  on 
  each 
  elytron, 
  when 
  viewed 
  obliquely, 
  are 
  seen 
  several 
  

   faintly 
  elevated 
  longitudinal 
  costse. 
  [Baly.] 
  

  

  51. 
  Diahrotica 
  ahhreviata 
  , 
  Baly. 
  

   Journ. 
  Linn. 
  Soc, 
  xix., 
  p. 
  238. 
  

  

  Hah. 
  Colombia. 
  

  

  52. 
  Diahrotica 
  cinctella, 
  Clievr. 
  

  

  Luperus 
  cinctellus, 
  Chevr., 
  in 
  Guer. 
  Icon, 
  regneanim., 
  

   p. 
  304, 
  pi. 
  49, 
  his. 
  fig. 
  6. 
  

  

  "Niger, 
  capite, 
  thorace 
  (foveis 
  duabus), 
  margine 
  elytrorum 
  

   femoribus 
  primoque 
  articulo 
  antennarum 
  infra 
  luteis 
  ; 
  elytris 
  

   nitidis 
  crebre 
  punctatis." 
  Long. 
  5 
  mm. 
  

  

  Hah. 
  Brazil. 
  

  

  Head 
  and 
  prothorax 
  sordid 
  yellow 
  ; 
  the 
  disk 
  of 
  the 
  latter 
  rather 
  

   closely 
  punctured, 
  with 
  two 
  foveolate 
  depressions, 
  which 
  are 
  some- 
  

   times 
  united 
  together 
  transversely. 
  Elytra 
  closely 
  and 
  not 
  very 
  

   strongly 
  punctured, 
  nitid, 
  black 
  ; 
  with 
  the 
  outer 
  border, 
  slightly 
  

   and 
  angularly 
  dilated 
  at 
  the 
  apex, 
  yellow. 
  Body 
  underneath 
  (pro- 
  

   thorax 
  excepted), 
  tibiae, 
  tarsi, 
  and 
  the 
  tips 
  of 
  the 
  femora 
  above, 
  

   black. 
  

  

  Var. 
  Disk 
  of 
  prothorax 
  with 
  a 
  median 
  oblong 
  black 
  spot. 
  

  

  This 
  species 
  is 
  most 
  nearly 
  allied 
  to 
  D. 
  limhifera, 
  Baly, 
  

   from 
  which 
  it 
  is 
  to 
  be 
  distinguished 
  by 
  the 
  black 
  colour 
  

   of 
  its 
  breast 
  and 
  abdomen. 
  In 
  its 
  shape 
  and 
  coloration 
  

   of 
  its 
  upper 
  side, 
  it 
  has 
  a 
  strong 
  resemblance 
  to 
  D. 
  

   cinctella, 
  Harold. 
  

  

  53. 
  Diahrotica 
  limhifera, 
  Baly. 
  

   Trans. 
  Ent. 
  Soc. 
  Lond., 
  1879, 
  p. 
  257. 
  

   Hah. 
  Peru. 
  

  

  