﻿460 
  Mr. 
  Charles 
  J. 
  Gahan 
  on 
  the 
  

  

  Mas. 
  Facie 
  mferiori 
  profunde 
  excavata, 
  antemiarum 
  articulo 
  

   qnarto 
  leviter 
  curvato. 
  

  

  FcEM. 
  Clypeo 
  convexo, 
  basi 
  longitudiualiter 
  costato 
  ; 
  antennis 
  

   filiformibus. 
  

  

  Long. 
  6 
  — 
  7 
  mm. 
  

  

  Hah. 
  Peru, 
  Chanchomayo 
  ; 
  Bolivia, 
  Amazons 
  (Bates). 
  

  

  Head 
  rather 
  longer 
  than 
  broad, 
  subtrigonate 
  ; 
  clypeus 
  in 
  the 
  ^ 
  

   entirely 
  occupied 
  by 
  a 
  large 
  concave 
  fovea, 
  convex 
  in 
  the 
  J 
  , 
  its 
  

   upper 
  half 
  with 
  a 
  distinct 
  longitudinal 
  ridge 
  ; 
  antennae 
  slender, 
  

   fihform, 
  the 
  third 
  and 
  fourth 
  joints 
  equal, 
  each 
  twice 
  the 
  length 
  of 
  

   the 
  second, 
  the 
  fourth 
  in 
  the 
  ^ 
  slightly 
  curved. 
  Thorax 
  nearly 
  

   one-half 
  broader 
  than 
  long 
  ; 
  sides 
  nearly 
  straight 
  and 
  parallel 
  

   behind 
  the 
  middle, 
  thence 
  rounded 
  and 
  converging 
  towards 
  the 
  

   apex, 
  the 
  hinder 
  angles 
  acute 
  ; 
  above 
  convex, 
  smooth, 
  impunctate 
  ; 
  

   disk 
  impressed 
  on 
  either 
  side 
  with 
  an 
  oblique 
  fovea. 
  Elytra 
  

   broadly 
  ovate, 
  dilated 
  posteriorly, 
  their 
  apices 
  conjointly 
  obtusely 
  

   rounded 
  ; 
  upper 
  surface 
  strongly 
  convex, 
  faintly 
  excavated 
  trans- 
  

   versely 
  below 
  the 
  basilar 
  space, 
  finely 
  punctured 
  ; 
  each 
  elytron 
  with 
  

   two 
  transverse 
  bands 
  abbreviated 
  on 
  the 
  outer 
  margin, 
  less 
  dis- 
  

   tinctly 
  so 
  on 
  the 
  suture 
  ; 
  the 
  first 
  extends 
  from 
  below 
  the 
  base 
  

   nearly 
  to 
  the 
  middle, 
  the 
  second 
  from 
  the 
  middle 
  nearly 
  to 
  the 
  

   apex; 
  the 
  elytra 
  may 
  be 
  described 
  as 
  black, 
  with 
  the 
  base, 
  more 
  or 
  

   less 
  broadly, 
  a 
  narrow 
  sutui'al 
  line, 
  the 
  outer 
  limb, 
  and 
  a 
  medial 
  

   fascia, 
  flavous. 
  [Baly.] 
  

  

  111. 
  Diabrotica 
  jucunda 
  , 
  Baly. 
  

   Journ. 
  Linn. 
  Soc, 
  xix., 
  p. 
  247. 
  

   Hah. 
  Colombia. 
  

  

  112. 
  Diabrotica 
  lata, 
  Fabr. 
  

   Syst. 
  Ent., 
  i., 
  p. 
  454 
  ; 
  Baly, 
  I. 
  c, 
  p. 
  258. 
  

  

  113. 
  Diabrotica 
  tarsata, 
  Gahan, 
  n. 
  n. 
  

  

  Diabrotica 
  tarsalis, 
  Baly, 
  Ent. 
  Mo. 
  Mag., 
  xxv., 
  p. 
  254, 
  

   nee 
  Harold. 
  

  

  Oblougo-ovata, 
  postice 
  ampliata, 
  convexa, 
  pallide 
  flava, 
  nitida 
  ; 
  

   pectore, 
  abdomine, 
  antennis 
  apice 
  scutelloque 
  nigris, 
  mandibulis 
  

   apice, 
  coxisque 
  piceis 
  ; 
  thoraco 
  minute 
  pimctato, 
  dorso 
  leviter 
  bi- 
  

   impresso 
  ; 
  elytris 
  distincte 
  sat 
  crebre 
  punctatis 
  ; 
  nigris, 
  limbo 
  

   externo, 
  apice 
  pauUo 
  dilatato, 
  fsisciaque 
  communi 
  prope 
  medium 
  

   pallide 
  flavis. 
  

  

  