﻿South 
  American 
  species 
  of 
  Diahrotica. 
  459 
  

  

  108. 
  Diahrotica 
  fenestrata, 
  Baly. 
  

   Journ. 
  Linn. 
  Soc, 
  1886, 
  p. 
  250. 
  

   Hah. 
  Venezuela, 
  Merida. 
  

  

  109. 
  Diahrotica 
  caviceps, 
  Baly. 
  

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

  

  Oblonga-ovata, 
  postice 
  ampliata, 
  convexa, 
  nigra, 
  nitida, 
  pedibus 
  

   capiteque 
  flavis, 
  antennis 
  extrorsum 
  piceo-tinctis 
  ; 
  thorace 
  rufo- 
  

   testaceo, 
  minute 
  subremote 
  punctato, 
  utrinque 
  foveolato 
  ; 
  scutello 
  

   piceo 
  aut 
  piceo-nigro 
  ; 
  elytris 
  convesis, 
  distincte 
  subcrebre 
  punc- 
  

   tatis, 
  basi, 
  limbo 
  externo 
  apice 
  pauUo 
  dilatato, 
  fasciaque 
  communi 
  

   prope 
  medium 
  flavis. 
  

  

  Mas. 
  Clypeo 
  profunde 
  excavato, 
  convexo 
  ; 
  antennis 
  simplicibus, 
  

   filiformibus. 
  

  

  FcEM. 
  Clypeo 
  convexo, 
  basi 
  longitudinaliter 
  elevato-vittato, 
  

   punctis 
  majoribus 
  sparse 
  impresso. 
  

  

  Var. 
  A. 
  Thorace 
  scutelloque 
  flavis, 
  elytrorum 
  plaga 
  basali 
  

   obsoleta. 
  

  

  Var. 
  B. 
  Elytrorum 
  fascia 
  mediali 
  ad 
  marginem 
  abbreviata. 
  

  

  Long. 
  5 
  — 
  6 
  mm. 
  

  

  Hah. 
  Amazons, 
  Para, 
  Santarem 
  (Bates). 
  

  

  Lower 
  face 
  deeply 
  excavated 
  and 
  concave 
  in 
  the 
  ^ 
  , 
  transversely 
  

   convex 
  in 
  the 
  J 
  , 
  its 
  upper 
  portion 
  with 
  a 
  slightly 
  raised 
  longi- 
  

   tudinal 
  ridge, 
  the 
  surface 
  sparingly 
  impressed 
  with 
  large 
  punctures 
  ; 
  

   antennaj 
  filiform 
  in 
  both 
  sexes, 
  the 
  second 
  joint 
  short, 
  oblong-ovate, 
  

   the 
  third 
  more 
  than 
  twice 
  its 
  length, 
  the 
  third 
  and 
  fourth 
  equal, 
  the 
  

   latter 
  very 
  slightly 
  curved 
  in 
  the 
  ^. 
  Thorax 
  about 
  one-fourth 
  

   broader 
  than 
  long 
  ; 
  sides 
  nearly 
  straight 
  and 
  parallel 
  from 
  the 
  base 
  

   to 
  beyond 
  the 
  middle, 
  thence 
  obliquely 
  converging 
  towards 
  the 
  

   apex 
  ; 
  above 
  convex, 
  very 
  minutely 
  punctured, 
  disk 
  impressed 
  on 
  

   either 
  side 
  with 
  a 
  subrotundate 
  fovea. 
  Elytra 
  subquadrate-ovate, 
  

   dilated 
  posteriorly, 
  their 
  apices 
  obtusely 
  rounded 
  ; 
  above 
  convex, 
  

   distinctly 
  but 
  finely 
  punctured. 
  [Baly.] 
  

  

  110. 
  Diahrotica 
  conehula, 
  Erichs. 
  

  

  Wiegm. 
  Archiv., 
  1847, 
  i., 
  p. 
  168. 
  

  

  Ovata, 
  postice 
  ampliata, 
  sat 
  valde 
  convexa, 
  flava, 
  nitida, 
  corpora 
  

   subtus, 
  pedibus 
  exceptis, 
  nigris, 
  capite 
  thoraceque 
  plus 
  minusve 
  

   rufo-tinctis 
  aut 
  totis 
  rufis, 
  scutello 
  piceo 
  ; 
  thorace 
  lEevi, 
  bifoveolato; 
  

   elytris 
  tenuiter 
  punetatis, 
  utrisque 
  fasciis 
  duabus 
  latis 
  una 
  infra 
  

   basin 
  altera 
  pone 
  medium 
  nigris. 
  

  

  