﻿Coleopterous 
  Genus 
  Megacephala. 
  55 
  

  

  M. 
  capite, 
  pronoto 
  et 
  elytrorum 
  disco 
  Isete 
  purpureo-cupreis, 
  

   horurn 
  lateribus 
  cyaneis, 
  apice 
  singuli 
  macula 
  elongate- 
  ovali 
  

   lutea 
  notatis 
  ; 
  pedibus 
  luteis, 
  geniculis 
  posticis 
  nigris. 
  

  

  Long. 
  Corp. 
  lin. 
  8. 
  

  

  K^msM.geniculatce, 
  Chevrolat, 
  etM. 
  Chiliensi, 
  Laporte. 
  Caput 
  

   laete 
  cupreo-purpureum, 
  antice 
  et 
  lateraliter 
  viridi-tinctum, 
  

   vertice 
  sub 
  lente 
  tenuissime 
  striolato 
  et 
  areolato, 
  punctis 
  

   duobus 
  parvis 
  ad 
  maiginem 
  internum 
  oculorum, 
  impressioni- 
  

   busque 
  diiabus 
  minus 
  profundis 
  inter 
  partem 
  anticam 
  oculo- 
  

   rum. 
  Labrum, 
  mandibulse 
  et 
  antennae 
  lutescentes, 
  illarum 
  

   dentibusnigrisjiarum 
  articulis 
  4 
  basalibus 
  supra 
  fusco-notatis. 
  

   Pronotum 
  valde 
  convexura, 
  laevissimum, 
  colore 
  capili 
  simile, 
  

   impressionibus 
  ordinariis 
  profundis. 
  Elytra 
  quam 
  in 
  M. 
  

   Martii 
  breviora 
  et 
  magis 
  ovata, 
  disco 
  antice 
  coloris 
  capitis 
  et 
  

   pronoti, 
  hoc 
  colore 
  ultra 
  medium 
  suturae 
  extenso 
  at 
  sensim 
  

   angustato 
  ; 
  lateribus 
  elytrorum 
  cyaneis 
  viridi-tinctis, 
  macula- 
  

   que 
  elongato-ovali 
  lutea, 
  ad 
  apicem 
  costas 
  angustius 
  producta, 
  

   disco 
  punctatissimo. 
  Corpus 
  infra 
  nigrum, 
  coloribus 
  metallicis 
  

   tinctum. 
  Pedes 
  lutescentes, 
  femoribus 
  4 
  posticis 
  prope 
  apicem 
  

   supra 
  fusco-tinctis. 
  

  

  Obs.— 
  I 
  cannot 
  distinguish 
  this 
  species 
  from 
  the 
  insect 
  in 
  the 
  

   British 
  Museum 
  collection 
  with 
  the 
  name 
  of 
  Meg. 
  remota, 
  Reiche, 
  

   MS. 
  attached 
  to 
  it. 
  

  

  Sp. 
  10. 
  Megacephala 
  ? 
  

  

  Obs, 
  — 
  Mr. 
  Bates' 
  unique 
  specimen 
  of 
  this 
  insect 
  has 
  not 
  yet 
  

   reached 
  this 
  country, 
  but 
  from 
  his 
  notes 
  it 
  is 
  most 
  probably 
  either 
  

   M. 
  spinosa, 
  Brulle 
  in 
  Voy. 
  D'Orbigny, 
  Amer. 
  merid. 
  VI. 
  ii. 
  p. 
  3, 
  

   n. 
  7, 
  or 
  M. 
  acutipennis, 
  Dejean, 
  Sp, 
  Gen. 
  i. 
  p. 
  13, 
  n. 
  C. 
  

  

  Sp. 
  11. 
  Megacephala 
  quadricollis, 
  Laferte 
  ? 
  MS. 
  (Tab. 
  VII. 
  fig. 
  7.) 
  

   M. 
  prothorace 
  subquadrato, 
  elytrisque 
  ad 
  apicem 
  spinosis 
  ; 
  

  

  supra 
  viridis 
  ; 
  elytrorum 
  lateribus 
  postice 
  luteo-albidis 
  ; 
  ore, 
  

  

  antennis 
  pedibusque 
  luteo-albidis. 
  

   Long, 
  corp, 
  lin. 
  6|. 
  

  

  Species 
  parva, 
  forma 
  prothoracis 
  et 
  elytrorum 
  spinisque 
  apices 
  

   horum 
  armantibus 
  primo 
  intuitu 
  distinctissima. 
  Caput 
  supra 
  

   cupreo-viride, 
  vertice 
  subconvexo, 
  sublaevi, 
  prope 
  marginem 
  

   internum 
  oculorum 
  longitudinaliter 
  striatulo, 
  impressionibus 
  

  

  