﻿180 
  Mr. 
  Hamilton 
  H. 
  Druce's 
  Monograph 
  

  

  genus, 
  whereas 
  Hlibner 
  placed 
  together 
  under 
  his 
  name 
  

   forms 
  that 
  are 
  abundantly 
  distinct, 
  without 
  any 
  remark 
  

   as 
  to 
  which 
  should 
  be 
  the 
  type 
  of 
  his 
  genus. 
  By 
  

   following 
  this 
  rule, 
  Hlibner's 
  name 
  will 
  not 
  be 
  required, 
  

   as 
  the 
  other 
  species 
  mentioned 
  by 
  him, 
  P. 
  symetJius, 
  

   Cr., 
  has 
  been 
  taken 
  as 
  the 
  type 
  of 
  another 
  genus 
  

   (Gerydus) 
  by 
  Boisduval, 
  who 
  has 
  been 
  followed 
  by 
  recent 
  

   authors. 
  

  

  I 
  am 
  unable 
  to 
  follow 
  Mr. 
  de 
  Niceville 
  when 
  he 
  states 
  

   (Butt., 
  India, 
  Burmah, 
  and 
  Ceylon, 
  iii., 
  p. 
  21, 
  1890) 
  : 
  — 
  

   First, 
  that 
  probably 
  this 
  genus 
  {Miletus) 
  belongs 
  to 
  his 
  

   Gerydus 
  group, 
  as 
  the 
  shape 
  of 
  the 
  wings 
  of 
  the 
  majority 
  

   of 
  the 
  species 
  and 
  the 
  normal 
  legs 
  would 
  appear 
  to 
  point 
  

   to 
  a 
  close 
  relationship 
  to 
  his 
  Poritia 
  group 
  ; 
  secondl}^ 
  

   when 
  he 
  states 
  that 
  the 
  genus 
  Hypochrysops, 
  as 
  distinct 
  

   from 
  Miletus, 
  includes 
  very 
  different 
  iusects. 
  Now 
  by 
  

   comparing 
  the 
  legs, 
  palpi, 
  and 
  arrangement 
  of 
  the 
  

   nervules 
  of 
  the 
  two 
  types, 
  it 
  will 
  be 
  found 
  that 
  there 
  is 
  

   no 
  appreciable 
  difference, 
  and 
  I 
  can 
  detect 
  no 
  characters 
  

   whereby 
  to 
  satisfactorily 
  separate 
  the 
  following 
  species 
  

   into 
  distinct 
  genera. 
  But, 
  for 
  the 
  sake 
  of 
  convenience, 
  

   I 
  have 
  divided 
  the 
  species 
  into 
  the 
  three 
  following 
  

   groups, 
  viz. 
  : 
  — 
  

  

  Group 
  I. 
  — 
  Costa 
  of 
  fore 
  wings 
  arched 
  ; 
  1st 
  and 
  2nd 
  

   median 
  nervules 
  of 
  hind 
  wing 
  produced, 
  so 
  as 
  to 
  form 
  

   blunt 
  tails. 
  

  

  Group 
  II. 
  — 
  Apex 
  of 
  fore 
  wing 
  pointed 
  ; 
  hind 
  wing 
  

   more 
  produced 
  at 
  anal 
  angle 
  than 
  at 
  apex. 
  

  

  Group 
  III. 
  — 
  Costa 
  of 
  fore 
  wing 
  arched 
  ; 
  hind 
  wing 
  

   more 
  produced 
  at 
  apex 
  than 
  at 
  anal 
  angle. 
  

  

  It 
  is 
  true, 
  however, 
  that 
  in 
  group 
  II. 
  the 
  3rd 
  branch 
  

   of 
  the 
  subcostal 
  nervure 
  is 
  emitted 
  slightly 
  higher 
  up, 
  

   and 
  that 
  the 
  lower 
  median 
  nervule 
  is 
  rather 
  more 
  curved 
  

   outwardly 
  than 
  in 
  grouj)s 
  I. 
  and 
  III. 
  ; 
  but 
  these 
  slight 
  

   differences 
  are, 
  in 
  my 
  opinion, 
  insufficient 
  for 
  generic 
  

   distinction. 
  

  

  The 
  curious 
  crease 
  between 
  the 
  lower 
  median 
  nervule 
  

   and 
  the 
  submedian 
  nervure, 
  which 
  is 
  found 
  in 
  many 
  

   genera 
  of 
  the 
  Lyccenidce, 
  is 
  particularly 
  well 
  developed 
  

   in 
  some 
  species 
  of 
  this 
  genus, 
  notably 
  H. 
  euclctus 
  and 
  

   H. 
  anadetus, 
  giving 
  them 
  almost 
  the 
  appearance 
  of 
  

   having 
  an 
  additional 
  nervure. 
  

  

  The 
  butterflies 
  of 
  this 
  genus 
  inhabit 
  the 
  Indo-Australian 
  

   region, 
  principally 
  New 
  Guinea 
  and 
  the 
  adjacent 
  islands, 
  

  

  