﻿GENERAL 
  BIOLOGICAL 
  CHARACTERS 
  OF 
  THE 
  ALUCITIDES. 
  105 
  

  

  that 
  occurs 
  in 
  the 
  tubercles 
  in 
  the 
  various 
  stadia 
  of 
  certain 
  Oxyptilids, 
  

   e.g., 
  he 
  observes 
  that, 
  " 
  in 
  the 
  young 
  larva 
  of 
  Oxyptilns 
  tristis, 
  they 
  are 
  

   small 
  and 
  single-haired, 
  whilst 
  in 
  the 
  fullgrown 
  larva 
  they 
  are 
  large 
  

   and 
  stellate-haired." 
  He 
  follows 
  Schroeder 
  in 
  his 
  nomenclature 
  of 
  

   the 
  longitudinal 
  lines, 
  calling 
  them 
  respectively 
  — 
  dorsal, 
  subdorsal, 
  

   supraspiracular, 
  spiracular, 
  basal 
  and 
  subbasal 
  stripes. 
  

  

  Dyar 
  also 
  made 
  some 
  suggestions 
  in 
  this 
  direction 
  (Ent. 
  Rec, 
  xi., 
  

   p. 
  40, 
  pi. 
  i., 
  figs. 
  1-6) 
  and 
  gave 
  the 
  following 
  table 
  : 
  

  

  I. 
  Warts 
  present 
  — 
  hair-tufts 
  instead 
  of 
  single 
  

  

  tubercles. 
  

  

  1. 
  Secondary 
  (i.e., 
  single 
  scattered) 
  

  

  hairs 
  also 
  present. 
  Warts 
  i 
  and 
  ii 
  

  

  united 
  (pi. 
  i., 
  fig. 
  1) 
  . 
  . 
  Type 
  1. 
  Trichoptilus* 
  (lobidactyla) 
  . 
  

  

  2. 
  No 
  secondary 
  hairs, 
  though 
  small 
  

  

  secondary 
  warts 
  (iiia 
  or 
  iiife, 
  or 
  

   both 
  iiia 
  and 
  iiifo) 
  may 
  be 
  present. 
  

  

  a. 
  Warts 
  functional 
  (pi. 
  i., 
  

  

  fig. 
  2) 
  . 
  . 
  . 
  . 
  Type 
  2. 
  Alucitaj 
  (lithodactyla). 
  

  

  b. 
  Warts 
  degenerate 
  (pi 
  i., 
  

  

  fig. 
  3) 
  . 
  . 
  . 
  . 
  Type 
  2. 
  Pterophorus} 
  (kellicotti). 
  

  

  II. 
  Warts 
  absent 
  — 
  primary 
  hairs 
  single. 
  

  

  1 
  . 
  Secondary 
  hairs 
  present, 
  iiia 
  some- 
  

  

  what 
  more 
  distinct 
  than 
  the 
  

  

  others 
  (pi. 
  i., 
  fig. 
  4) 
  .. 
  Type 
  3. 
  Platyptilia§ 
  (rhododactyla) 
  . 
  

  

  2. 
  No 
  secondary 
  hairs, 
  all 
  tubercles 
  

  

  primary 
  (pi. 
  L, 
  figs. 
  5 
  and 
  6.) 
  

  

  Type 
  4. 
  Marasmarcha|| 
  (microdactyla), 
  

   Orneodes 
  (hexadactyla). 
  

  

  Dyar 
  makes 
  the 
  further 
  remarks 
  that 
  (1) 
  Trichoptilus 
  has 
  the 
  same 
  

   structure 
  as 
  Oxyjrtilus, 
  and 
  (2) 
  Type 
  1 
  is 
  the 
  highest 
  and 
  Type 
  4 
  the 
  

   lowest 
  in 
  degree 
  of 
  specialisation. 
  

  

  Dyar's 
  grouping 
  calls 
  for 
  many 
  remarks. 
  The 
  union 
  of 
  the 
  larva 
  

   of 
  microdactyla, 
  in 
  some 
  respects 
  the 
  most 
  highly 
  specialised 
  Alucitid 
  

   larva, 
  with 
  hexadactyla, 
  the 
  type 
  of 
  the 
  Orneodids, 
  a 
  quite 
  distinct 
  

   superfamily, 
  discounts 
  the 
  grouping 
  at 
  once. 
  The 
  specialised 
  degrada- 
  

   tion 
  of 
  warts 
  in 
  Adaina 
  has 
  nothing 
  in 
  common 
  with 
  the 
  typical 
  

   tubercular 
  Orneodid 
  larval 
  structure. 
  One 
  observes, 
  however, 
  that 
  on 
  

   this 
  slender 
  material, 
  Dyar 
  has 
  obtained 
  the 
  essential 
  larval 
  structures 
  

   which 
  distinctly 
  upset 
  Meyrick's 
  suggested 
  phylogeny 
  (Handbook, 
  

   p. 
  430), 
  and 
  support 
  that 
  of 
  Hofmann. 
  In 
  our 
  system 
  his 
  Type 
  1 
  is 
  

   Platyptiliine; 
  Type 
  2 
  (both 
  forms) 
  is 
  Alucitine; 
  Type 
  8 
  is 
  Platyptiliine 
  ; 
  

   Type 
  4 
  is 
  also 
  Platyptiliine. 
  Orneodes 
  is 
  of 
  course 
  quite 
  outside 
  the 
  

   superfamily. 
  

  

  Hofmann 
  followed 
  up 
  (Zeits. 
  fur 
  Ent., 
  iii. 
  pp. 
  129 
  et 
  sen.) 
  his 
  

   previous 
  work, 
  with 
  a 
  paper 
  " 
  Ueber 
  die 
  Anordnung 
  der 
  borsten- 
  

   tragenden 
  Warzen 
  bei 
  den 
  Raupen 
  der 
  Pterophoriden," 
  with 
  an 
  illus- 
  

  

  * 
  Trichoptilus, 
  as 
  here 
  used, 
  is 
  evidently 
  a 
  very 
  near 
  ally, 
  if 
  not 
  identical 
  

   with, 
  Oxyptilus. 
  Trichoptilus, 
  as 
  used 
  in 
  Britain 
  for 
  pallidum, 
  has 
  a 
  somewhat 
  

   different 
  structure. 
  We 
  place 
  paludum 
  in 
  Backleria. 
  

  

  f 
  Alucita 
  here 
  of 
  course 
  equals 
  Oidaematophoms, 
  Wallengren. 
  

  

  '} 
  The 
  descriptions 
  of 
  the 
  larva 
  and 
  pupa 
  of 
  this 
  species 
  (Fernald, 
  Pteroph. 
  

   North 
  America, 
  pp. 
  46-47) 
  suggest 
  that 
  this 
  species 
  belongs 
  to 
  the 
  Leioptilids, 
  

   possibly 
  to 
  Helliiisia. 
  The 
  larva 
  has 
  certainly 
  nothing 
  in 
  common, 
  except 
  that 
  

   both 
  are 
  Alucitine 
  with 
  that 
  of 
  monodactyla, 
  with 
  which 
  Fernald 
  and 
  Dyar 
  place 
  it. 
  

  

  ^ 
  This 
  genus 
  is 
  of 
  course 
  Eucnemidophorus, 
  Wallengren. 
  

  

  || 
  The 
  genus 
  (Adaina) 
  to 
  which 
  microdactyla 
  belongs, 
  is 
  Alucitine. 
  Moras- 
  

   marcha 
  is 
  Platyptiliine. 
  

  

  