﻿452 
  Mr. 
  Charles 
  J. 
  Gahan 
  on 
  the 
  

  

  extrorsum 
  albidis; 
  thoraee 
  transverse, 
  sat 
  profunde 
  Infoveolato, 
  

   foveis 
  inter 
  se 
  connexis 
  ; 
  el3^tris 
  tenuiter 
  subcrebe 
  pinictatis, 
  infra 
  

   basin 
  non 
  excavatis, 
  limbo 
  externo 
  late 
  fulvo. 
  

   Long. 
  5^ 
  mm. 
  

  

  Hah. 
  Amazons, 
  Ega 
  (Bates). 
  

  

  Antennae 
  slender, 
  filiform, 
  tlie 
  second 
  joint 
  short, 
  obeonic, 
  the 
  

   third 
  nearly 
  twice 
  its 
  length, 
  the 
  fourth 
  rather 
  longer 
  than 
  the 
  

   third; 
  the 
  five 
  lower 
  joints 
  black, 
  the 
  six 
  upper 
  ones 
  white. 
  Thorax 
  

   nearly 
  twice 
  as 
  broad 
  as 
  long 
  ; 
  sides 
  sinuate 
  and 
  slightly 
  diverging 
  

   from 
  the 
  base 
  to 
  beyond 
  the 
  middle, 
  thence 
  rounded 
  and 
  con- 
  

   verging 
  towards 
  the 
  apex 
  ; 
  upper 
  surface 
  obliquely 
  deflexed 
  on 
  the 
  

   sides, 
  the 
  latter 
  rather 
  broadly 
  margined; 
  disk 
  with 
  two 
  large 
  

   foveas, 
  which 
  are 
  connected 
  with 
  each 
  other 
  by 
  a 
  shallow 
  dei-)ression 
  . 
  

   Elytra 
  broadly 
  oblong-ovate, 
  scarcely 
  dilated 
  posteriorly, 
  regularly 
  

   rouuded 
  at 
  their 
  apices, 
  moderately 
  convex, 
  sHghtly 
  flattened 
  on 
  

   the 
  suture, 
  not 
  excavated 
  below 
  the 
  basilar 
  space, 
  minutely 
  punc- 
  

   tured 
  ; 
  the 
  outer 
  limb 
  broadly 
  fulvous. 
  [Baly.] 
  

  

  93. 
  Diahrotica 
  albomarginata, 
  Baly. 
  

  

  P. 
  Z. 
  S., 
  1889, 
  p. 
  92. 
  

  

  Late 
  oblongo-ovata, 
  postice 
  ampliata, 
  modice 
  convexa, 
  dorso 
  

   subdepressa, 
  nigra, 
  nitida, 
  antennarum 
  articulis 
  tertio 
  ad 
  noniim 
  

   pallide 
  flavo-fulvis 
  {duo 
  apicales 
  fracti 
  sunt) 
  ; 
  thoraee 
  fortiter 
  

   arcuatim 
  impresso, 
  sulco 
  utrinque 
  magis 
  excavato 
  ; 
  elj'tris 
  tenuiter 
  

   punctatis, 
  margine 
  laterali 
  late 
  albido. 
  

  

  Long. 
  5|- 
  mm. 
  

  

  Hah. 
  Ecuador 
  (Buckley) 
  ; 
  a 
  single 
  specimen. 
  

  

  Head 
  not 
  longer 
  than 
  broad, 
  trigonate 
  ; 
  clypeus 
  convex, 
  its 
  

   upper 
  two-thirds 
  with 
  a 
  faint 
  longitudinal 
  ridge 
  ; 
  antennae 
  robust, 
  

   filiform, 
  pubescent, 
  the 
  second 
  joint 
  short, 
  cylindi-ical, 
  increasing 
  

   in 
  thickness 
  towards 
  the 
  apex, 
  the 
  third 
  nearly 
  twice 
  its 
  length, 
  

   the 
  fourth 
  nearly 
  as 
  long 
  as 
  the 
  preceding 
  two 
  united 
  ; 
  the 
  two 
  

   lower 
  joints 
  black, 
  the 
  third 
  to 
  the 
  ninth 
  pale 
  flavo-fnlvous 
  (the 
  

   two 
  upper 
  ones 
  broken 
  off). 
  Thorax 
  more 
  than 
  one-third 
  broader 
  

   than 
  long; 
  sides 
  broadly 
  margined, 
  straight 
  and 
  parallel 
  from 
  the 
  

   base 
  to 
  the 
  middle, 
  thence 
  obliquely 
  converging 
  to 
  the 
  apex, 
  the 
  

   anterior 
  angles 
  obtuse, 
  the 
  hinder 
  ones 
  subacute 
  ; 
  upper 
  surface 
  

   finely 
  but 
  not 
  closely 
  punctm-ed 
  ; 
  disk 
  impressed 
  with 
  a 
  large, 
  

   shallow, 
  ill-defined, 
  curved 
  sulcation, 
  either 
  end 
  of 
  which 
  is 
  more 
  

   deeply 
  foveolate. 
  Elytra 
  ovate, 
  their 
  lateral 
  limb 
  broadly 
  dilated, 
  

   their 
  apices 
  conjointly 
  regularly 
  rounded 
  ; 
  moderately 
  convex, 
  

   slightly 
  flattened 
  along 
  the 
  suture, 
  minutely 
  and 
  subremotely 
  

   punctured. 
  [Baly.] 
  

  

  