﻿448 
  Mr. 
  Charles 
  J. 
  Gabau 
  on 
  the 
  

  

  fulvo-i3ieeis, 
  articulis 
  octavo 
  nonoque 
  albidis 
  ; 
  thorace 
  quam 
  longo 
  

   latiori, 
  disco 
  sulco 
  arcuate, 
  et 
  ante 
  sulcum 
  fovea 
  magna 
  male 
  

   definita 
  impresso 
  ; 
  elytris 
  rude 
  punctatis, 
  viridi-metallicis, 
  limbo 
  

   externo, 
  apice 
  dilatato, 
  fascia 
  prope 
  medium, 
  lineaque 
  suturali 
  

   pone 
  medium 
  flavis. 
  

   Long. 
  6 
  mm. 
  

  

  Hab. 
  Cayenne. 
  

  

  Head 
  not 
  broader 
  than 
  long, 
  triangular 
  ; 
  clypeus 
  with 
  a 
  strongly 
  

   raised 
  longitudinal 
  ridge, 
  excavated 
  on 
  the 
  sides, 
  impunctate, 
  the 
  

   lateral 
  angles 
  piceous 
  ; 
  antennae 
  slender, 
  filiform, 
  longer 
  than 
  the 
  

   body, 
  the 
  second 
  joint 
  short, 
  subovate, 
  the 
  thu-d 
  nearly- 
  twice 
  its 
  

   length, 
  the 
  fourth 
  distinctly 
  longer 
  than 
  the 
  third 
  ; 
  the 
  fom- 
  lower 
  

   joints 
  obscure 
  pic 
  eo 
  -fulvous, 
  the 
  eighth 
  and 
  ninth 
  white. 
  Thorax 
  

   about 
  one-fourth 
  broader 
  than 
  long 
  ; 
  sides 
  rather 
  broadly 
  margined, 
  

   sinuate 
  and 
  slightly 
  diverging 
  from 
  the 
  base 
  to 
  beyond 
  the 
  middle, 
  

   thence 
  slightly 
  converging 
  towards 
  the 
  apex, 
  the 
  anterior 
  angles 
  

   subacute, 
  hinder 
  ones 
  acute 
  ; 
  upper 
  surface 
  convex, 
  flattened 
  on 
  

   the 
  hinder 
  disk, 
  the 
  latter 
  with 
  a 
  broad, 
  shallow, 
  and 
  ill-defined 
  

   curved 
  depression, 
  immediately 
  in 
  front 
  of 
  which, 
  on 
  the 
  anterior 
  

   disk, 
  is 
  a 
  shallow 
  excavation 
  ; 
  surface 
  remotely 
  punctui'ed. 
  Elytra 
  

   oblong-ovate, 
  dilated 
  posteriorly, 
  regularly 
  rounded 
  at 
  the 
  apices, 
  

   convex, 
  longitudinally 
  depressed 
  along 
  the 
  sutm'e, 
  coarsely 
  punc- 
  

   tured, 
  very 
  sparingly 
  clothed 
  with 
  suberect 
  hairs. 
  [Baly.] 
  

  

  85. 
  Diabrotica 
  spectanda, 
  Baly. 
  

   Journ. 
  Linn. 
  Soc, 
  xix., 
  p. 
  241. 
  

   Hab. 
  Colombia. 
  

  

  86. 
  Diabrotica 
  fasciatipennis, 
  sp. 
  n. 
  

  

  Oblongo-ovata, 
  postice 
  paullo 
  ampliata 
  ; 
  capite 
  nigro 
  ; 
  antennis 
  

   nigris 
  articulis 
  ultimis 
  quatuor 
  flavis 
  ; 
  prothorace 
  transverse, 
  

   testaceo-flavo, 
  nitido, 
  disco 
  leviter 
  bifoveolato 
  ; 
  elytris 
  dense 
  punc- 
  

   tulatis, 
  pallide 
  flavis, 
  basi 
  late 
  et 
  fascia 
  transversa 
  pone 
  medium 
  

   nigris, 
  corpore 
  subtus, 
  prothorace 
  excepto, 
  tibiis 
  tarsisque 
  et 
  apici- 
  

   bus 
  femorum 
  nigris. 
  Long. 
  7^ 
  mm. 
  

  

  Var. 
  Femoribus 
  totis 
  nigris. 
  

  

  Hab. 
  Venezuela 
  {Dyson), 
  (type) 
  ; 
  Colombia, 
  Cauca 
  

   (var.). 
  

  

  Head 
  black, 
  the 
  front 
  with 
  a 
  median 
  carina 
  passing 
  fi'om 
  the 
  

   clypeal 
  margin 
  to 
  between 
  the 
  insertion 
  of 
  the 
  antennae. 
  Antenna 
  

   black, 
  with 
  the 
  last 
  four 
  joints, 
  the 
  tip 
  of 
  the 
  eleventh 
  excepted, 
  

   yellowish; 
  with 
  the 
  third 
  joint 
  at 
  least 
  twice 
  as 
  long 
  as 
  the 
  second, 
  

  

  