﻿28 
  Mr. 
  W. 
  W. 
  Saunders's 
  Descriptions 
  

  

  after 
  by 
  collectors 
  who 
  are 
  in 
  a 
  situation 
  to 
  clear 
  up 
  the 
  dif- 
  

   ficulty, 
  

  

  Xylotrvpes 
  dicholoma, 
  a 
  fine 
  scarabeus, 
  with 
  a 
  remarkably 
  

   branched 
  and 
  elevated 
  horn 
  arising 
  from 
  the 
  head. 
  

  

  Oplophora 
  Horsjieldli, 
  Hope, 
  figured 
  in 
  the 
  Transactions 
  of 
  this 
  

   Society, 
  Vol. 
  IV. 
  PI. 
  I. 
  fig. 
  1, 
  a 
  longicorn 
  of 
  great 
  beauty, 
  and 
  

   large 
  size. 
  This 
  specimen, 
  described 
  by 
  Mr. 
  Hope, 
  was 
  taken 
  

   in 
  Chusan, 
  by 
  Dr. 
  Cantor. 
  

  

  I 
  shall 
  now 
  proceed 
  to 
  the 
  description 
  of 
  several 
  new 
  Melito- 
  

   phila, 
  commencing 
  with 
  a 
  very 
  well 
  marked 
  and 
  new 
  genus 
  of 
  

   Goliath 
  beetles. 
  

  

  CosMioMORPHA, 
  new 
  Genus. 
  (Koc/xToe 
  Mop</)?j.) 
  

  

  Head 
  porrect, 
  with 
  the 
  clypeus 
  subquadrate, 
  rather 
  longer 
  than 
  

   broad, 
  the 
  sides 
  parallel, 
  the 
  anterior 
  margin 
  slightly 
  emarginate, 
  

   the 
  fore 
  angles 
  obliquely 
  truncate, 
  and 
  the 
  contour 
  slightly 
  

   elevated. 
  Mandibles 
  with 
  the 
  horny 
  blade 
  regularly 
  lanceolate 
  

   and 
  pointed. 
  Maxillce 
  with 
  the 
  upper 
  lobe 
  small, 
  lanceolate, 
  

   pointed, 
  and 
  incurved, 
  externally 
  covered 
  with 
  rigid 
  hairs 
  ; 
  the 
  

   inner 
  lobe 
  ending 
  above 
  in 
  an 
  angulated 
  point 
  ; 
  palpi 
  short. 
  The 
  

   mentum 
  oblong, 
  narrowed 
  in 
  front, 
  and 
  having 
  the 
  anterior 
  

   margin 
  slightly 
  emarginate, 
  with 
  the 
  labial 
  palpi 
  short. 
  

  

  Thorax 
  very 
  gibbous 
  and 
  rounded 
  in 
  front, 
  about 
  as 
  long 
  as 
  

   broad, 
  the 
  lateral 
  margins 
  nearly 
  parallel, 
  slightly 
  emarginate 
  

   in 
  the 
  centre, 
  the 
  posterior 
  margin 
  straight, 
  with 
  the 
  angles 
  

   prominent. 
  

  

  Elytra 
  rather 
  broader 
  than 
  thorax, 
  narrow 
  and 
  rounded 
  at 
  the 
  

   apex 
  ; 
  the 
  shoulders 
  prominent, 
  with 
  the 
  lateral 
  margin 
  immedi- 
  

   ately 
  behind 
  slightly 
  emarginate. 
  

  

  Legs 
  long 
  and 
  slender, 
  the 
  anterior 
  pair 
  in 
  tne 
  $ 
  having 
  the 
  tibiae 
  

   elongate, 
  with 
  slight 
  traces 
  of 
  two 
  obtuse 
  teeth 
  on 
  the 
  outer 
  margin, 
  

   and 
  one 
  long 
  spine 
  on 
  the 
  underside, 
  near 
  the 
  apex, 
  projecting 
  

   downwards 
  ; 
  those 
  of 
  the 
  ? 
  shorter, 
  more 
  robust, 
  and 
  the 
  tibiae 
  

   bidentate. 
  Mesosternal 
  process 
  rounded 
  in 
  front, 
  with 
  the 
  sides 
  

   nearly 
  parallel, 
  moderate 
  in 
  size. 
  

  

  The 
  nearest 
  relationship 
  of 
  this 
  genus 
  appears 
  to 
  be 
  with 
  

   Jummos, 
  W. 
  W. 
  Saund., 
  although 
  from 
  the 
  long 
  and 
  slender 
  legs 
  

   and 
  colour 
  of 
  the 
  only 
  species 
  known, 
  it 
  might 
  seem 
  to 
  come 
  neac 
  

   to 
  Dicronocephalus 
  of 
  Hope. 
  Its 
  unarmed 
  clypeus, 
  chafacter 
  

   of 
  fore 
  tibiae 
  in 
  $ 
  , 
  and 
  the 
  resemblance 
  of 
  the 
  females, 
  are 
  the 
  

   reasons 
  which 
  induce 
  me 
  to 
  place 
  it 
  immediately 
  before 
  Jummos, 
  

   from 
  which 
  it 
  is 
  distinguished, 
  as 
  well 
  as 
  from 
  Rhomhorhina 
  of 
  

  

  