﻿436 
  Mr. 
  Charles 
  J. 
  Gahan 
  on 
  the 
  

  

  or 
  two 
  specimens 
  the 
  small 
  posterior 
  spots 
  are 
  wanting. 
  In 
  another 
  

   the 
  three 
  outer 
  spots 
  of 
  each 
  elytron 
  are 
  united 
  to 
  form 
  a 
  longi- 
  

   tudinal 
  band. 
  Again, 
  there 
  is 
  a 
  variety 
  in 
  which 
  the 
  elytra 
  are 
  

   almost 
  wholly 
  flavous, 
  the 
  brown 
  being 
  restricted 
  to 
  a 
  very 
  short 
  

   sutural 
  line 
  behind 
  the 
  scutellum, 
  and 
  a 
  short 
  broken 
  vitta 
  passing 
  

   back 
  from 
  each 
  shoulder. 
  

  

  62. 
  Diahrotica 
  maculatipennis, 
  Baly, 
  sp. 
  n. 
  

  

  Anguste 
  ovata, 
  postice 
  pauUo 
  ampliata, 
  convexa, 
  flava, 
  nitida, 
  

   pectore 
  capiteque 
  nigris, 
  antennis 
  basi 
  piceis 
  apice 
  piceo-fulvis, 
  

   scuteUo 
  piceo 
  ; 
  thorace 
  quam 
  longo 
  pauUo 
  latiori, 
  convexo, 
  minute 
  

   subremote 
  pimctato, 
  fulvo-rufo 
  ; 
  elytris 
  subcrebre 
  punctatis, 
  utris- 
  

   que 
  maculis 
  sex 
  nigris 
  ornatis. 
  

  

  Long. 
  5 
  — 
  5^ 
  mm. 
  

  

  Hab. 
  Brazil, 
  Tejuca 
  (Gray). 
  

  

  Head 
  triangular, 
  not 
  longer 
  than 
  broad 
  ; 
  clypeus 
  with 
  a 
  strongly 
  

   elevated 
  ridge 
  ; 
  antennae 
  nearly 
  equal 
  to 
  the 
  body 
  in 
  length, 
  fih- 
  

   form, 
  the 
  second 
  joint 
  short, 
  subovate, 
  the 
  third 
  twice 
  its 
  length, 
  

   nearly 
  as 
  long 
  as 
  the 
  fourth, 
  the 
  first 
  and 
  fourth 
  joints 
  piceous, 
  the 
  

   second 
  and 
  third, 
  together 
  with 
  the 
  three 
  upper 
  ones, 
  piceo-fulvous. 
  

   Thorax 
  scarcely 
  one-fourth 
  broader 
  than 
  long 
  ; 
  sides 
  straight 
  and 
  

   parallel 
  from 
  the 
  base 
  to 
  beyond 
  the 
  middle, 
  thence 
  slightly 
  con- 
  

   verging 
  towards 
  the 
  apex, 
  the 
  hinder 
  and 
  anterior 
  angles 
  obtuse 
  ; 
  

   upper 
  surface 
  convex, 
  finely 
  and 
  subremotely 
  punctured. 
  Elytra 
  

   ovate, 
  moderately 
  dilated 
  posteriorly, 
  the 
  apices 
  conjointly 
  rounded; 
  

   above 
  convex, 
  obsoletely 
  depressed 
  on 
  the 
  suture 
  below 
  the 
  basilar 
  

   space, 
  distinctly 
  punctured 
  ; 
  each 
  elytron 
  with 
  six 
  black 
  or 
  nigro- 
  

   piceous 
  markings, 
  one 
  basal, 
  linear, 
  placed 
  on 
  the 
  suture, 
  common, 
  

   and 
  extending 
  for 
  nearly 
  one-third 
  of 
  its 
  length, 
  a 
  second 
  large, 
  

   subovate, 
  covering 
  the 
  humeral 
  callus, 
  two 
  very 
  small, 
  placed 
  

   transversely 
  near 
  the 
  middle 
  of 
  the 
  disk, 
  and 
  two 
  rather 
  larger, 
  

   placed 
  transversely 
  and 
  somewhat 
  obliquely 
  half-way 
  between 
  the 
  

   middle 
  and 
  the 
  apex. 
  [Baly.] 
  

  

  63. 
  Diahrotica 
  nigropu?ictata, 
  Gahan, 
  sp. 
  n. 
  

  

  Oblongo-ovata, 
  postice 
  paiiUo 
  ampliata, 
  convexa, 
  nigra, 
  pro- 
  

   thorace 
  elytrisque 
  fulvis 
  ; 
  prothorace 
  crebre 
  obsoleteque 
  punctate, 
  

   nitido 
  ; 
  elytris 
  crebre 
  punctatis, 
  utrisque 
  punctis 
  sex 
  nigris. 
  Long. 
  

   5 
  1 
  mm. 
  

  

  Hah. 
  Brazil, 
  

  

  Head 
  black, 
  clypeus 
  with 
  a 
  rather 
  feebly 
  raised 
  longitudinal 
  

   carina. 
  Antennae 
  black, 
  more 
  than 
  half 
  the 
  length 
  of 
  the 
  body 
  ; 
  

  

  