﻿90 
  BRITISH 
  LEPIDOPTERA. 
  

  

  8. 
  Forewings 
  with 
  11 
  out 
  of 
  8 
  5 
  Pselnophorus. 
  

  

  ,, 
  ,, 
  11 
  separate 
  6 
  Marasmarcha. 
  

  

  The 
  species 
  placed 
  in 
  these 
  genera 
  are 
  as 
  follows 
  — 
  

  

  1. 
  Trichoptilus 
  — 
  T. 
  pallidum. 
  

  

  2. 
  Oxyptilus 
  — 
  0. 
  distans, 
  pilosellae, 
  parvidactylus, 
  hieracii, 
  teucrii. 
  

  

  3. 
  Platyptilia 
  — 
  P. 
  cosmodactyla, 
  acanthodactyla, 
  gonodactyla, 
  zetterstedtii, 
  

  

  isodactyla, 
  bertrami, 
  ochrodactyla, 
  rhododactyla. 
  

  

  4. 
  Pterophorus 
  — 
  P. 
  tetradactylus, 
  baliodactylus, 
  pentadactylus, 
  galactodac- 
  

  

  tylus, 
  spilodactylus. 
  

  

  5. 
  Pselnophorus 
  — 
  P. 
  brachydactylus. 
  

  

  6. 
  Marasmarcha 
  — 
  M. 
  phaeodactyla, 
  microdactyla. 
  

  

  7. 
  Alucita 
  — 
  A. 
  osteodactyla, 
  tephradactyla 
  , 
  lienigianus, 
  monodactyla, 
  litho- 
  

  

  dactyla. 
  

  

  8. 
  Stenoptilia 
  — 
  S. 
  pterodactyla, 
  zophodactyla, 
  bipunctidactyla. 
  

  

  9. 
  Agdistis 
  — 
  A. 
  bennetii. 
  

  

  Hofmann 
  gave, 
  in 
  1895 
  (Die 
  deutschen 
  Pterophorinen, 
  pp. 
  23 
  etseq.), 
  

   the 
  best 
  generic 
  tabulation 
  of 
  the 
  superfamily 
  that 
  we 
  have 
  seen. 
  It 
  

   reads 
  as 
  follows 
  : 
  — 
  

  

  I. 
  All 
  the 
  wings 
  undivided 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  Agdistis, 
  Hb. 
  

  

  II. 
  The 
  forewings 
  once, 
  the 
  hindwings 
  twice, 
  cleft. 
  

  

  A. 
  The 
  third 
  feather 
  of 
  the 
  hindwing 
  with 
  only 
  

   one 
  vein 
  (stem 
  a) 
  . 
  The 
  discoidal 
  cell 
  of 
  the 
  

   forewings 
  closed 
  by 
  a 
  vertical 
  or 
  only 
  

   slightly 
  outwardly 
  inclining 
  cross- 
  vein. 
  

   Feathers 
  of 
  hindwing? 
  differently 
  shaped, 
  

   or, 
  if 
  shaped 
  alike, 
  with 
  two 
  bands 
  across 
  

   tips 
  of 
  forewings.* 
  

   1. 
  The 
  tips 
  of 
  forewings 
  with 
  only 
  one 
  

  

  transverse 
  band 
  or 
  without 
  such 
  ; 
  

  

  feathers 
  of 
  hindwing 
  differently 
  

  

  shaped. 
  Forewings 
  cleft 
  to 
  one-third. 
  

  

  Lobes 
  of 
  forewings 
  similarly 
  shaped, 
  

  

  i.e., 
  both 
  having 
  an 
  anal 
  angle. 
  

  

  a. 
  The 
  third 
  feather 
  of 
  hindwing 
  with 
  

  

  a 
  black 
  scale-tooth 
  in 
  the 
  inner 
  

  

  marginal 
  fringe 
  close 
  to 
  the 
  apex 
  Eucnemidophorus, 
  Walsm.f 
  

  

  b. 
  The 
  third 
  feather 
  of 
  the 
  hindwing 
  

  

  with 
  a 
  tooth 
  or 
  streak-like 
  tuft 
  of 
  

  

  black 
  scales 
  in 
  the 
  centre 
  of 
  the 
  

  

  inner-marginal 
  fringe. 
  

  

  a. 
  Palpi 
  long 
  and 
  slender, 
  with 
  

   long 
  terminal 
  joint, 
  forehead 
  

   with 
  a 
  very 
  long 
  or 
  some- 
  

   times 
  rather 
  short 
  scale- 
  tuft 
  

   (occasionally 
  very 
  short) 
  .. 
  Platyptilia, 
  Hb. 
  \ 
  

  

  j3. 
  Palpi 
  laterally 
  compressed 
  

   with 
  very 
  short 
  terminal 
  

   joint 
  ; 
  forehead 
  with 
  a 
  

   smooth-scaled 
  conical 
  pro- 
  

   tuberance 
  . 
  . 
  . 
  . 
  . 
  . 
  Amblyptilia, 
  Hb. 
  

  

  c. 
  The 
  third 
  feather 
  of 
  hindwing 
  

  

  without 
  black 
  scales 
  and 
  hind 
  

   marginal 
  fringe. 
  

  

  * 
  Nervure 
  (stem) 
  II 
  of 
  the 
  forewings, 
  in 
  all 
  the 
  genera 
  of 
  group 
  A, 
  has 
  five 
  branches, 
  

   except 
  in 
  Marasmarcha, 
  Trichoptilus, 
  and 
  sometimes 
  exceptionally 
  in 
  Oxyptilus, 
  in 
  

   which 
  there 
  are 
  only 
  four 
  branches. 
  Stem 
  IV 
  of 
  the 
  hindwings 
  has, 
  in 
  all 
  genera, 
  

   with 
  the 
  exception 
  of 
  Trichoptilus, 
  three 
  branches, 
  and, 
  even 
  in 
  this 
  genus, 
  IV 
  is 
  

   sometimes 
  present, 
  even 
  if 
  very 
  slender. 
  (Hofm.) 
  

  

  t 
  This 
  is 
  an 
  error, 
  Wallengren 
  is 
  the 
  author 
  of 
  this 
  name. 
  

  

  \ 
  In 
  the 
  genus 
  Platyptilia 
  the 
  black 
  scales 
  of 
  the 
  inner 
  marginal 
  fringe 
  of 
  the 
  

   third 
  feather 
  are 
  very 
  transient, 
  being 
  lost 
  in 
  flight, 
  or 
  are 
  sometimes 
  altogether 
  

   wanting 
  ; 
  in 
  such 
  cases, 
  however, 
  the 
  long 
  frontal 
  tuft 
  will 
  serve 
  to 
  recognise 
  the 
  

   genus 
  Platyptilia 
  (Hofm.). 
  

  

  