﻿456 
  Mr. 
  Charles 
  J. 
  Gahan 
  on 
  the 
  

  

  100. 
  Diahrotica 
  beata, 
  Baly. 
  

   Journ. 
  Linn. 
  Soc, 
  xix., 
  p. 
  244. 
  

   Hab. 
  Colombia. 
  

  

  101. 
  Diabrotica 
  siibsimilis, 
  Baly, 
  sp. 
  n. 
  

  

  Ovata, 
  postice 
  ampliata, 
  sat 
  valde 
  convexa, 
  nigra, 
  nitida, 
  capite 
  

   thoraceque 
  rufis, 
  antennis 
  pedibnsque 
  flavis 
  ; 
  thorace 
  tenuiter 
  

   piinctato, 
  titrinque 
  foveolato, 
  foveis 
  inter 
  se 
  convexis 
  ; 
  elytris 
  

   postice 
  ampliatis 
  apice 
  obtuse 
  truncatis 
  ; 
  convexis, 
  postice 
  sub- 
  

   veutricosis, 
  siibfortiter 
  punctatis, 
  obsolete 
  elevato-A'ittatis 
  ; 
  fascia 
  

   niediali 
  ad 
  niargiueni 
  abbreviata 
  apiceqiie 
  flavis. 
  

  

  FcEM. 
  Clypeo 
  convexo, 
  basi 
  obsolete 
  costato. 
  

  

  [Mas. 
  Facie 
  profunde 
  transversim 
  excavata.] 
  

  

  Long. 
  6 
  — 
  7 
  mm. 
  

  

  Hab. 
  Colombia, 
  Cauca. 
  

  

  Head 
  distinctly 
  longer 
  than 
  broad, 
  subtrigonate 
  ; 
  clypeus 
  in 
  the 
  

   $ 
  convex, 
  its 
  extreme 
  base 
  indistinctly 
  elevate-vittate 
  ; 
  antennae 
  

   slender, 
  filiform, 
  four-fifths 
  the 
  length 
  of 
  the 
  body, 
  the 
  second 
  

   joint 
  filiform, 
  slightly 
  thickened 
  towards 
  its 
  apex, 
  nearly 
  equal 
  in 
  

   length 
  to 
  the 
  third, 
  the 
  foiu-th 
  nearly 
  as 
  long 
  as 
  the 
  preceding 
  two 
  

   united. 
  Thorax 
  nearly 
  one-half 
  broader 
  than 
  long 
  at 
  the 
  base 
  ; 
  

   sides 
  sinuate 
  behind 
  the 
  middle, 
  rounded 
  and 
  converging 
  towards 
  

   the 
  apex 
  anteriorly, 
  the 
  hinder 
  angles 
  rather 
  strongly 
  produced, 
  

   subacute 
  ; 
  above 
  convex, 
  distinctly 
  but 
  rather 
  distantly 
  punctured, 
  

   disk 
  impressed 
  on 
  either 
  side 
  with 
  a 
  deep 
  fovea, 
  the 
  fovese 
  con- 
  

   nected 
  by 
  a 
  transverse 
  sulcation. 
  Elytra 
  broadly 
  ovate, 
  strongly 
  

   dilated 
  posteriorly, 
  the 
  apices 
  conjointly 
  obtusely 
  rounded 
  ; 
  above 
  

   convex, 
  more 
  strongly 
  so 
  below 
  the 
  middle, 
  transversely 
  impressed 
  

   at 
  the 
  sutui'B 
  below 
  the 
  basilar 
  space, 
  rather 
  strongly 
  but 
  not 
  very 
  

   closely 
  punctured; 
  disk 
  of 
  each 
  elytron 
  with 
  several 
  ill-defined 
  

   longitudinal 
  ridges, 
  the 
  spaces 
  between 
  which 
  are 
  obsoletely 
  

   sulcate. 
  

  

  Although 
  this 
  species 
  differs 
  in 
  the 
  relative 
  length 
  of 
  

   the 
  second 
  and 
  third 
  joints 
  of 
  the 
  antennae, 
  it 
  agrees 
  so 
  

   closely 
  in 
  general 
  form, 
  coloration, 
  and 
  other 
  characters, 
  

   with 
  the 
  insects 
  of 
  the 
  present 
  section, 
  that 
  I 
  have 
  placed 
  

   it 
  amongst 
  them. 
  [Baly.] 
  

  

  102. 
  Diahrotica 
  bella, 
  Baly. 
  

   L.c, 
  p. 
  247. 
  

   llab. 
  Colombia, 
  Magdalena 
  River. 
  

  

  