﻿54 
  Mr. 
  J. 
  O. 
  Westwood 
  on 
  the 
  

  

  M. 
  lam'matce 
  magnitudine 
  et 
  forma 
  proxima, 
  differt 
  imprimis 
  

   pronoto 
  et 
  elytris 
  aspero-granulatis, 
  granulis 
  nigris. 
  Caput 
  

   breve, 
  pronoto 
  latius, 
  fere 
  Iseve, 
  disco 
  parum 
  convexo 
  in 
  

   medio 
  fusco, 
  margine 
  interne 
  oculoriun 
  tenue 
  nigro. 
  Labrum 
  

   luteo-albidum, 
  angulis 
  lateralibus 
  rotundatis, 
  margine 
  antice 
  

   denticulis 
  4 
  minutis 
  aequalibus 
  et 
  ^quidistantibus. 
  Man- 
  

   dibulse 
  albidae, 
  dentibus 
  apice 
  castaneis, 
  dextera 
  dentibus 
  

   tribus 
  validis, 
  sinistra 
  etiam 
  tribus 
  intermedio 
  parvo. 
  Palpi 
  

   albidi, 
  maxillares 
  articulo 
  2ndo 
  parum 
  inflato. 
  Antennae 
  

   gracilesj 
  albidse, 
  articulis 
  2do, 
  3tio, 
  et 
  4to 
  supra 
  fusco 
  parum 
  

   tinctis. 
  Pronotum 
  lateribus 
  antice 
  fere 
  rectis, 
  pone 
  medium 
  

   sensim 
  angustatis 
  ; 
  disco 
  convexo, 
  impressionibus 
  binis 
  or- 
  

   dinariis 
  transversis 
  indistinctis, 
  media 
  longitudinali 
  tenui 
  sat 
  

   distincta, 
  antice 
  et 
  postice 
  granulato. 
  Elytra 
  brevia, 
  obovata, 
  

   albido-lutea, 
  undique 
  granulis 
  minutis 
  nigris 
  aspera, 
  cruce 
  

   fusca 
  reversa 
  notata 
  apice 
  crucis 
  acuminato, 
  apice 
  suturae 
  

   albido 
  relicto 
  ; 
  margine 
  tenuissimo 
  laterali 
  fusco. 
  Pedes 
  

   graciles, 
  albidi. 
  Corpus 
  infra 
  fusco-luteum, 
  abdominis 
  apice 
  

   pallidiori. 
  

  

  Obs.— 
  The 
  specific 
  names 
  attached 
  to 
  this 
  insect 
  in 
  several 
  col- 
  

   lections, 
  without 
  any 
  author's 
  name 
  attached, 
  are 
  equally 
  ap- 
  

   plicable 
  to 
  M. 
  lammata, 
  whilst 
  the 
  remarkably 
  granulated 
  surface 
  

   of 
  the 
  elytra 
  suggests 
  a 
  name 
  at 
  once 
  indicative 
  of 
  the 
  species. 
  

  

  C. 
  Metallic 
  coloured 
  species. 
  {Tetracha, 
  Westw.) 
  

  

  Sp. 
  7. 
  Megacephala 
  Spixii, 
  Bvulle 
  in 
  D'Orbigny, 
  Voy. 
  Amer. 
  

   merid. 
  VI. 
  ii. 
  p. 
  3, 
  pi. 
  1, 
  fig. 
  3. 
  (Tab. 
  VII. 
  fig. 
  5.) 
  

  

  Obs. 
  — 
  Dr. 
  Erichson, 
  Jahrb. 
  Entomol. 
  1837, 
  p. 
  209, 
  considers 
  

   this 
  as 
  not 
  distinct 
  from 
  M. 
  Martii, 
  to 
  which 
  indeed 
  it 
  is 
  very 
  

   closely 
  allied 
  in 
  form, 
  sculpture 
  and 
  colour 
  of 
  the 
  limbs. 
  The 
  

   observations, 
  however, 
  of 
  an 
  intelligent 
  collector 
  like 
  Mr. 
  Bates 
  

   upon 
  these 
  insects 
  in 
  their 
  native 
  country, 
  warrants 
  their 
  reten- 
  

   tion 
  as 
  distinct. 
  

  

  Sp. 
  8. 
  Megacephala 
  Martii, 
  Perty, 
  Delect. 
  An. 
  Art. 
  Bras, 
  

   p. 
  i. 
  pi. 
  1, 
  fig. 
  ]. 
  (Tab. 
  VII. 
  fig. 
  3.) 
  

  

  Sp, 
  9. 
  Megacephala 
  curta, 
  Reiche? 
  MS, 
  (Tab. 
  VII. 
  fig. 
  1.) 
  

  

  