﻿406 
  BRITISH 
  LEPIDOPTERA. 
  

  

  a. 
  The 
  tips 
  of 
  the 
  cilia, 
  on 
  the 
  hinder 
  margin 
  of 
  the 
  first 
  lobe 
  of 
  the 
  fore- 
  

   wings, 
  dusky 
  — 
  0. 
  pilosellae, 
  Zell., 
  0. 
  hieracii, 
  Zeh 
  1 
  ., 
  0. 
  ericetorum, 
  

   Zell., 
  0. 
  obscurus, 
  Zell. 
  

   /3. 
  The 
  tips 
  of 
  the 
  cilia 
  on 
  the 
  hinder 
  margin 
  of 
  the 
  first 
  lobe 
  of 
  the 
  fore- 
  

   wings 
  white 
  — 
  0. 
  didactyla, 
  Linn. 
  

   II. 
  Forewings 
  with 
  dull 
  yellowish 
  markings 
  on 
  the 
  upperside. 
  Hindwings 
  

   with 
  the 
  underside 
  of 
  the 
  first 
  plumule 
  unspotted 
  at 
  the 
  tip 
  — 
  0. 
  bohemanni, 
  Wallgrn. 
  

  

  The 
  lepidopterists 
  (Jordan, 
  Wocke, 
  Meyrick) 
  who 
  followed 
  

   Wallengren, 
  in 
  dealing 
  with 
  the 
  plumes, 
  were 
  quite 
  unable 
  to 
  act 
  on 
  

   his 
  indications, 
  being 
  apparently 
  ignorant 
  of 
  the 
  early 
  stages, 
  and, 
  on 
  

   the 
  strength 
  of 
  a 
  subfamily 
  diagnosis, 
  Meyrick 
  (Trans. 
  Ent. 
  Soc. 
  

   Lond., 
  1886, 
  p. 
  8) 
  includes 
  them 
  all 
  in 
  the 
  genus 
  OxyptUus, 
  following 
  

   the 
  same 
  course 
  in 
  1890 
  (op. 
  cit., 
  p. 
  485), 
  his 
  inclusive 
  diagnosis 
  

   reading 
  as 
  follows 
  : 
  — 
  

  

  Face 
  rounded, 
  smooth, 
  or 
  with 
  small 
  tuft 
  ; 
  ocelli 
  obsolete 
  ; 
  tongue 
  developed. 
  

   Antennae 
  two-thirds, 
  in 
  s 
  filiform, 
  simple 
  or 
  ciliated 
  (^ 
  — 
  J). 
  Labial 
  palpi 
  

   moderate, 
  ascending, 
  second 
  joint 
  with 
  appressed 
  or 
  projecting 
  scales 
  beneath, 
  

   sometimes 
  forming 
  a 
  short 
  angular 
  apical 
  tuft, 
  terminal 
  joint 
  moderate, 
  filiform, 
  

   tolerably 
  acute. 
  Maxillary 
  palpi 
  obsolete. 
  Tibiae 
  thickened 
  with 
  scales 
  on 
  origin 
  of 
  

   spurs, 
  outer 
  spurs 
  nearly 
  equal 
  inner. 
  Forewings 
  bifid, 
  cleft 
  from 
  about 
  middle 
  ; 
  vein 
  

   2 
  from 
  a 
  point 
  with 
  4, 
  3 
  and 
  4 
  stalked, 
  5 
  and 
  6 
  very 
  short, 
  7 
  from 
  below 
  8, 
  long, 
  

   9 
  and 
  10 
  out 
  of 
  8, 
  11 
  from 
  near 
  8. 
  Hindwings 
  trifid, 
  third 
  segment 
  with 
  a 
  well- 
  

   developed 
  tooth 
  of 
  black 
  scales 
  in 
  dorsal 
  cilia 
  ; 
  vein 
  2 
  from 
  middle 
  of 
  cell, 
  3 
  from 
  

   near 
  angle, 
  very 
  short, 
  5 
  and 
  6 
  very 
  short, 
  7 
  to 
  apex 
  — 
  laetus, 
  Zell., 
  distans, 
  Zell., 
  

   tristis, 
  Zell., 
  kollari, 
  Stn., 
  pilosellae, 
  Zell., 
  hofmannseggii, 
  Mosch., 
  parvidactylus, 
  

   Haw., 
  bohemanni, 
  Wallgrn., 
  marginellus, 
  Zell., 
  ericetorum, 
  Zell., 
  maculatus, 
  Const., 
  

   hieracii, 
  Zell., 
  teucrii, 
  Greening, 
  didactylus, 
  Linn. 
  (? 
  brunneodactylus, 
  Mill.) 
  

  

  In 
  1895, 
  however, 
  Hofmann 
  published 
  his 
  work 
  thereon, 
  and 
  gave 
  

   a 
  most 
  illuminating 
  study 
  of 
  the 
  group, 
  subdividing 
  it 
  into 
  its 
  

   constituent 
  parts 
  on 
  characters 
  connected 
  with 
  the 
  imago, 
  without, 
  

   however, 
  carrying 
  out 
  this 
  division 
  to 
  its 
  logical 
  conclusion 
  by 
  naming 
  

   the 
  sections 
  as 
  separate 
  genera. 
  He 
  divides 
  the 
  Oxyptilines 
  into 
  two 
  

   main 
  sections, 
  diagnosing 
  the 
  group 
  as 
  a 
  whole, 
  and 
  its 
  two 
  main 
  

   sections 
  as 
  follows 
  :— 
  

  

  The 
  lobes 
  of 
  the 
  forewings 
  with 
  two 
  pale 
  transverse 
  bands 
  ; 
  feathers 
  of 
  hind- 
  

   wings 
  similarly 
  shaped. 
  Forewings 
  cleft 
  to 
  £ 
  ; 
  lobes 
  of 
  forewings 
  differently 
  

   shaped, 
  upper 
  one 
  pointed, 
  lower 
  with 
  obtuse 
  anal 
  angle, 
  or 
  of 
  similar 
  shape, 
  and 
  

   then 
  both 
  pointed. 
  

  

  a. 
  Vein 
  II 
  of 
  forewings 
  with 
  five 
  branches.* 
  In 
  the 
  cilia 
  of 
  the 
  costa 
  

   and 
  inner 
  margin 
  of 
  the 
  3rd 
  plumule 
  differently-shaped 
  accumulations 
  

   of 
  black 
  scales 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  OxyptUus, 
  Zell. 
  

  

  /3. 
  Vein 
  II 
  of 
  forewings 
  with 
  four 
  branches, 
  as 
  branch 
  II 
  1 
  is 
  wanting. 
  In 
  

   the 
  cilia 
  of 
  the 
  inner 
  margin 
  of 
  the 
  3rd 
  plumule, 
  not 
  any, 
  or 
  only 
  a 
  

   very 
  insignificant, 
  accumulation 
  of 
  black 
  scales. 
  . 
  Trichoptilus 
  , 
  Walsm. 
  

  

  His 
  first 
  group, 
  OxyptUus, 
  comprises 
  our 
  two 
  tribes 
  Capperiidi 
  and 
  

   Oxyptilidi, 
  and 
  his 
  latter, 
  Trichoptilus, 
  our 
  tribe 
  Buckleriidi 
  (Ent. 
  Rec, 
  

   xvii., 
  p. 
  37). 
  Our 
  separation 
  of 
  the 
  first 
  two 
  was 
  based 
  largely 
  on 
  

   details 
  of 
  the 
  larval 
  and 
  pupal 
  characters, 
  both 
  showing, 
  in 
  Capperia 
  

   (as 
  exemplified 
  in 
  heterodactyla), 
  an 
  inclination 
  to 
  Alucitine 
  characters. 
  

   Chapman 
  considers 
  now 
  that 
  the 
  larval 
  and 
  pupal 
  characters 
  that 
  

   separate 
  Capperia 
  from 
  OxyptUus, 
  although 
  apparently 
  so 
  great, 
  are 
  

   possibly 
  not 
  structurally 
  of 
  tribal 
  value, 
  and 
  hence 
  he 
  is 
  inclined 
  to 
  sink 
  

   Capperiidi 
  as 
  falling 
  within 
  the 
  limits 
  of 
  Oxyptilidi. 
  Hofmann's 
  detailed 
  

   account 
  of 
  OxyptUus 
  ( 
  — 
  Oxyptilidi 
  and 
  Capperiidi) 
  (Die 
  Deutsch. 
  

   Pteroph., 
  pp. 
  95-102) 
  reads 
  as 
  follows: 
  — 
  

  

  * 
  Exceptionally, 
  there 
  are 
  only 
  four 
  branches 
  of 
  vein 
  II 
  present, 
  but 
  then 
  II 
  2 
  

   is 
  always 
  absent, 
  not 
  IIj 
  (Hofmann). 
  

  

  