﻿514 
  Mr. 
  E. 
  McLachlan's 
  descriptions 
  of 
  

  

  wholly 
  or 
  in 
  part 
  tinged 
  with 
  fuliginous) 
  : 
  neuration 
  black, 
  network 
  

   moderately 
  dense 
  : 
  pterostignia 
  small, 
  well-defined, 
  its 
  outer 
  side 
  

   very 
  oblique, 
  dark 
  brown, 
  with 
  3 
  or 
  4 
  deep 
  black 
  nervules 
  : 
  26 
  — 
  35 
  

   ante-pterostigmatic 
  costal 
  nervules 
  in 
  the 
  anterior 
  wings 
  ; 
  post- 
  

   stigmatical 
  area 
  broad, 
  with 
  three 
  rows 
  of 
  regular 
  angular 
  cellules, 
  

   of 
  which 
  the 
  costal 
  row 
  is 
  very 
  small, 
  and 
  the 
  others 
  large 
  (the 
  

   lower 
  the 
  largest) 
  ; 
  4 
  — 
  5 
  rows 
  of 
  cellules 
  between 
  the 
  lower 
  cubitus 
  

   and 
  the 
  inner 
  margin 
  m 
  the 
  anterior 
  wings, 
  3 
  in 
  the 
  posterior. 
  

   Length 
  of 
  body, 
  29 
  — 
  34 
  mm. 
  Expanse 
  of 
  wmgs, 
  72 
  — 
  90 
  mm. 
  

   Length 
  of 
  anterior 
  wing, 
  34 
  — 
  42 
  mm. 
  ; 
  greatest 
  breadth, 
  8 
  — 
  10 
  mm. 
  

   Length 
  of 
  posterior 
  wing, 
  28 
  — 
  35 
  mm. 
  

  

  Hah. 
  Japan 
  {Pryer, 
  Leivis, 
  dc), 
  where 
  it 
  is 
  appa- 
  

   rently 
  very 
  common. 
  I 
  have 
  ten 
  examples 
  of 
  both 
  sexes 
  

   before 
  me, 
  and 
  have 
  seen 
  many 
  more. 
  

  

  This 
  may 
  be 
  considered 
  quite 
  congeneric 
  with 
  the 
  

   typical 
  /. 
  decrepitus, 
  Walker 
  ; 
  the 
  spurs 
  of 
  the 
  tibiae 
  are 
  

   slightly 
  longer, 
  and 
  the 
  post-stigmatical 
  area 
  is 
  broader 
  

   (it 
  contains 
  only 
  two 
  rows 
  of 
  cellules 
  in 
  I. 
  decrepitus 
  and 
  

   I. 
  sogdianus). 
  

  

  Idricerus 
  {'^) 
  Alhardanus, 
  n. 
  sp. 
  

   (Anteimse 
  wanting). 
  Head 
  above 
  fuscescent, 
  with 
  obscure 
  paler 
  

   spots, 
  clothed 
  with 
  dusky 
  cinereous 
  pilosity, 
  and 
  a 
  tuft 
  of 
  whitish 
  

   hairs 
  between 
  the 
  antennae 
  : 
  face 
  yellowish-grey, 
  a 
  fringe 
  of 
  long 
  

   curved 
  fuscous 
  hairs 
  on 
  the 
  clypeus 
  ; 
  palpi 
  concolorous 
  with 
  the 
  

   face. 
  Eyes 
  black, 
  densely 
  reticulated 
  with 
  grey, 
  the 
  reticulation 
  

   coarser 
  and 
  more 
  open 
  in 
  the 
  lower 
  portion. 
  Thorax 
  fuscous, 
  

   densely 
  clothed 
  with 
  dusky 
  cinereous 
  pilosity 
  above, 
  which 
  becomes 
  

   almost 
  white 
  on 
  the 
  breast 
  and 
  beneath 
  ; 
  above 
  are 
  mdications 
  of 
  

   yellowish 
  mai-kings, 
  especially 
  on 
  the 
  scutellum 
  of 
  the 
  meso- 
  and 
  

   meta-nota. 
  Legs 
  pale 
  yellow, 
  with 
  long 
  dense 
  whitish 
  hairs 
  on 
  the 
  

   femora, 
  becoming 
  mixed 
  with 
  blackish 
  on 
  the 
  tibiae 
  ; 
  tai'si 
  faintly 
  

   annulated 
  with 
  brownish 
  at 
  the 
  extremity 
  of 
  the 
  first 
  four 
  joints 
  ; 
  

   spurs 
  and 
  claws 
  testaceous 
  Abdomen 
  slender, 
  blackish, 
  sparsely 
  

   clothed 
  with 
  short 
  blackish 
  hairs 
  ; 
  above, 
  the 
  segmental 
  divisions 
  

   (except 
  in 
  apical 
  portion), 
  and 
  the 
  base 
  of 
  segments 
  4 
  — 
  6, 
  are 
  

   yellowish 
  white, 
  and 
  beneath, 
  the 
  apical 
  half 
  of 
  segments 
  3 
  — 
  4 
  is 
  

   of 
  the 
  same 
  colour 
  : 
  on 
  the 
  dorsum 
  of 
  the 
  abdomen, 
  segment 
  3 
  

   is 
  produced 
  at 
  the 
  apex 
  into 
  a 
  seiiii-erect, 
  narrowly 
  triangular 
  

   acute 
  valve-like 
  process, 
  which 
  is 
  concave 
  and 
  pale 
  yellowish 
  if 
  

   viewed 
  from 
  behind, 
  viewed 
  in 
  front 
  it 
  is 
  fuscescent, 
  densely 
  

   clothed 
  with 
  black 
  hairs, 
  with 
  pale 
  yellowish 
  margins 
  and 
  apex 
  ; 
  

   apex 
  of 
  abdomen 
  with 
  black 
  spmose 
  hairs 
  ; 
  no 
  prominent 
  anal 
  

  

  