﻿HISTOKICAL 
  ACCOUNT 
  OF 
  THE 
  ALUCITIDES. 
  

  

  91 
  

  

  a. 
  Palpi 
  laterally 
  compressed, 
  

   second 
  joint 
  enlarged 
  up- 
  

   wards, 
  forehead 
  with 
  a 
  coni- 
  

   cal, 
  smooth-scaled 
  protuber- 
  

   ance 
  . 
  . 
  

   /3. 
  Palpi 
  strikingly 
  short 
  and 
  

   slender 
  

   2. 
  The 
  lobes 
  of 
  the 
  forewings 
  with 
  two 
  pale 
  

   transverse 
  bands 
  ; 
  feathers 
  of 
  hind- 
  

   wings 
  similarly 
  shaped. 
  Forewings 
  

   cleft 
  to 
  J 
  ; 
  lobes 
  of 
  lorewings 
  differ- 
  

   ently 
  shaped, 
  upper 
  one 
  pointed, 
  lower 
  

   with 
  obtuse 
  anal 
  angle, 
  or 
  of 
  similar 
  

   shape, 
  and 
  then 
  both 
  pointed. 
  

  

  a. 
  Vein 
  II 
  of 
  forewings 
  with 
  5 
  

  

  branches.* 
  In 
  the 
  cilia 
  of 
  the 
  

   costa 
  and 
  inner 
  margin 
  of 
  the 
  

   3rd 
  plumule 
  differently 
  shaped 
  

   accumulations 
  of 
  black 
  scales 
  . 
  . 
  

  

  b. 
  Vein 
  II 
  of 
  forewings 
  with 
  4 
  branches 
  

  

  as 
  branch 
  II 
  X 
  is 
  wanting. 
  In 
  the 
  

  

  cilia 
  of 
  the 
  inner 
  margin 
  of 
  the 
  3rd 
  

  

  plumule 
  not 
  any 
  or 
  only 
  a 
  very 
  

  

  insignificant 
  accumulation 
  of 
  

  

  black 
  scalesf 
  

  

  B. 
  The 
  3rd 
  feather 
  of 
  the 
  hindwings 
  with 
  two 
  

  

  veins 
  (stem 
  V 
  and 
  a). 
  Upper 
  corner 
  of 
  

  

  discoidal 
  cell 
  acutely 
  extended, 
  cross-vein 
  

  

  oblique, 
  running 
  downwards 
  and 
  inwards. 
  

  

  Feathers 
  of 
  hindwings 
  shaped 
  alike, 
  no 
  

  

  ' 
  transverse 
  bands 
  across 
  the 
  tips 
  of 
  the 
  

  

  forewings. 
  j 
  

  

  1. 
  The 
  branch 
  II 
  5 
  arises 
  still 
  from 
  the 
  cross- 
  

  

  rib 
  close 
  to 
  branch 
  II 
  4 
  ; 
  both 
  branches 
  

   run 
  divergingly 
  ; 
  forewings 
  cleft 
  to 
  ^. 
  

   Upper 
  and 
  lower 
  lobes 
  differently 
  

   shaped, 
  the 
  former 
  acute, 
  the 
  latter 
  

   with 
  obtuse 
  anal 
  angle 
  

  

  a. 
  Middle 
  tibiae 
  in 
  the 
  centre 
  and 
  at 
  the 
  

  

  end 
  thickened 
  with 
  scales. 
  Hind 
  

   tibias 
  with 
  or 
  without 
  scale 
  thick- 
  

   ening 
  

  

  b. 
  Middle 
  tibiae 
  thickened 
  only 
  at 
  the 
  

  

  end, 
  hind 
  tibiae 
  without 
  scale 
  

  

  thickening. 
  

  

  a. 
  Middle 
  spurs 
  of 
  the 
  hind 
  tibia? 
  

  

  of 
  unequal 
  length 
  

   j8. 
  Middle 
  spurs 
  of 
  the 
  hind 
  tibia? 
  

  

  of 
  equal 
  length 
  

  

  2. 
  The 
  branch 
  II, 
  arises 
  far 
  distant 
  from 
  

  

  the 
  discoidal 
  cell, 
  

  

  branch 
  II 
  

  

  I, 
  joining 
  „ 
  

   or 
  is 
  quite 
  absent. 
  Forewings 
  cleft 
  

   from 
  over 
  ^ 
  to 
  £. 
  Upper 
  and 
  lower 
  

   lobes 
  of 
  similar 
  form, 
  running 
  to 
  a 
  

   point, 
  never 
  with 
  any 
  trace 
  of 
  an 
  

   anal 
  angle, 
  

   a. 
  Stem 
  II 
  with 
  3 
  branches 
  towards 
  

  

  Stenoptilia, 
  Hb. 
  

   Marasmarcha, 
  Meyr. 
  

  

  Oxyptilus, 
  Zell. 
  

  

  Trichoptilus, 
  Walsm. 
  

  

  Alucita, 
  Meyr. 
  

   (Edematophorus, 
  Wllgn. 
  

  

  Pterophorus, 
  Wallgrn. 
  

   Leioptilus, 
  Wallgrn. 
  

  

  * 
  Exceptionally 
  there 
  are 
  only 
  4 
  branches 
  of 
  vein 
  II 
  present, 
  but 
  then 
  II 
  9 
  is 
  

   always 
  absent, 
  not 
  II 
  1 
  (Holm.). 
  

  

  f 
  The 
  only 
  German 
  species 
  of 
  this 
  genus 
  ('/'. 
  pabulum) 
  has 
  no 
  black 
  scales 
  in 
  

   the 
  inner 
  marginal 
  cilia 
  of 
  the 
  3rd 
  feather 
  (Hofm.). 
  

  

  I 
  Several 
  genera 
  of 
  the 
  group 
  B 
  have 
  on 
  the 
  forewings 
  of 
  stem 
  II 
  only 
  f 
  or 
  (in 
  

   Aciptilia) 
  still 
  fewer 
  or 
  not 
  any 
  branches 
  ; 
  on 
  the 
  hindwings 
  stem 
  IV 
  has 
  always 
  

   only 
  two 
  branches 
  (Hofm.). 
  

  

  