﻿CROMBRUGGHIA 
  DISTANS. 
  451 
  

  

  (2) 
  The 
  second 
  pair 
  of 
  apophyses 
  have 
  a 
  hard-looking 
  basal 
  portion, 
  and 
  a 
  

   softer 
  inflated-looking 
  terminal 
  portion 
  which 
  arises 
  not 
  from 
  the 
  actual 
  extremity 
  

   of 
  the 
  basal 
  portion, 
  but 
  just 
  below 
  its 
  end. 
  In 
  distans 
  the 
  basal 
  and 
  terminal 
  

   portions 
  are 
  in 
  a 
  nearly 
  straight 
  line, 
  and, 
  approximately, 
  of 
  an 
  uniform 
  width 
  

   (0'7mm. 
  in 
  overall 
  length, 
  and 
  O09mm. 
  wide). 
  In 
  laetus 
  the 
  basal 
  portion 
  of 
  the 
  

   process 
  diminishes 
  to 
  half 
  its 
  previous 
  diameter 
  towards 
  the 
  end 
  (basally 
  it 
  is 
  

   much 
  the 
  same 
  width 
  as 
  in 
  distans), 
  and 
  bends 
  ventrad, 
  and 
  ends 
  in 
  a 
  slight 
  

   enlargement 
  much 
  like 
  that 
  of 
  the 
  upper 
  process. 
  The 
  further 
  portion 
  of 
  the 
  

   clasp 
  is 
  very 
  much 
  smaller 
  (less 
  than 
  half 
  the 
  length) 
  than 
  in 
  distans, 
  is 
  directed 
  

   rather 
  ventrally, 
  and 
  looks 
  as 
  if 
  it 
  were 
  quite 
  distinct 
  from 
  the 
  basal 
  portion, 
  

   much 
  more 
  than 
  is 
  the 
  case 
  in 
  distans. 
  (The 
  length 
  of 
  the 
  basal 
  portion 
  is 
  about 
  

   0-38mm., 
  of 
  the 
  terminal 
  appendages 
  0'09mm., 
  in 
  distans 
  the 
  two 
  portions 
  are 
  

   approximately 
  equal.) 
  

  

  (3) 
  The 
  small 
  lower 
  appendages 
  are 
  not 
  very 
  different 
  in 
  the 
  two 
  species, 
  but 
  

   are 
  largest 
  in 
  laetus, 
  they 
  are 
  about 
  0-26mm. 
  long, 
  and 
  of 
  very 
  similar 
  structure 
  to 
  

   the 
  terminal 
  portion 
  of 
  the 
  middle 
  (true 
  clasps?) 
  appendages. 
  In 
  these 
  two 
  

   species 
  there 
  appears 
  to 
  be 
  a 
  central 
  dorsal 
  triangular 
  plate, 
  not 
  above 
  the 
  upper 
  

   paired 
  appendages, 
  but 
  buried 
  between 
  them, 
  and 
  only 
  of 
  about 
  half 
  their 
  length 
  ; 
  

   this 
  is 
  probably 
  the 
  dorsal 
  plate 
  ; 
  it 
  has 
  no 
  terminal 
  process, 
  and 
  is 
  so 
  buried 
  

   between 
  the 
  lateral 
  processes, 
  and 
  so 
  pale 
  and 
  lightly 
  chitinised, 
  that 
  it 
  is 
  far 
  from 
  

   conspicuous, 
  and 
  is, 
  therefore, 
  probably 
  present 
  in 
  those 
  Oxyptilid 
  species 
  in 
  which 
  

   I 
  do 
  not 
  happen 
  to 
  have 
  observed 
  it." 
  

  

  It 
  is, 
  perhaps, 
  not 
  really 
  so 
  very 
  surprising 
  that 
  two 
  insects, 
  so 
  much 
  

   alike 
  in 
  their 
  general 
  facies, 
  yet 
  with 
  absolutely 
  distinct 
  larvae 
  and 
  

   pupge, 
  should 
  have 
  so 
  markedly 
  different 
  $ 
  genital 
  organs. 
  The 
  

   differences 
  are 
  so 
  great 
  that 
  there 
  can 
  be 
  no 
  possible 
  doubt 
  about 
  their 
  

   absolute 
  distinctness. 
  

  

  Crombrugghia 
  distans, 
  Zeller. 
  

  

  Synonymy. 
  — 
  Species: 
  Distans, 
  Zell., 
  " 
  Isis," 
  p. 
  902 
  (1847); 
  "Linn. 
  Ent.," 
  

   vi., 
  p. 
  345(1852); 
  H.-Sch., 
  "Sys. 
  Bearb.,"v., 
  p. 
  372 
  (1855); 
  Frey, 
  " 
  Die 
  Tin. 
  Pter. 
  

   Schw.," 
  p. 
  408 
  (1856); 
  Staud. 
  and 
  Wocke, 
  " 
  Cat.," 
  2nd 
  ed., 
  p. 
  342 
  (1871); 
  Hein. 
  and 
  

   Wocke, 
  " 
  Schmett. 
  Deutsch.," 
  iii., 
  pt. 
  2, 
  p. 
  790 
  (1877) 
  ; 
  Staud., 
  " 
  Hor. 
  Soc. 
  Ent. 
  

   Ross.," 
  xv., 
  p. 
  424 
  (1880); 
  Frey, 
  " 
  Lep. 
  Schweiz," 
  p. 
  429 
  (1880) 
  ; 
  Jord., 
  " 
  Ent. 
  

   Mo. 
  Mag.," 
  xviii., 
  p. 
  122 
  (1881) 
  ; 
  Barr., 
  " 
  Ent. 
  Mo. 
  Mag.," 
  xviii., 
  p. 
  178 
  (1882) 
  ; 
  

   Snell., 
  " 
  De 
  Vlind.," 
  ii., 
  pt. 
  2, 
  p. 
  1028 
  (1882) 
  ; 
  Sorhgn., 
  " 
  Kleinschm. 
  Brandbg,," 
  

   p. 
  3 
  (1886) 
  ; 
  Leech, 
  "Brit. 
  Pyr.," 
  p. 
  56, 
  pi. 
  xvi., 
  fig. 
  11 
  (1886) 
  ; 
  South, 
  " 
  Ent.," 
  

   xxii., 
  pp. 
  32, 
  103 
  (1889); 
  Barr., 
  "Ent. 
  Mo. 
  Mag.," 
  xxv., 
  p. 
  431 
  (1889); 
  Tutt, 
  

   "Young 
  Nat.," 
  x., 
  p. 
  164 
  (1889); 
  "Ent. 
  Rec," 
  L, 
  p. 
  94 
  (1890); 
  Meyr., 
  "Trans. 
  

   Ent. 
  Soc. 
  Lond.," 
  1890, 
  p. 
  485 
  (1890); 
  Tutt, 
  "Brit. 
  Nat.," 
  i., 
  p. 
  141 
  (1891); 
  

   "Brit. 
  Pter.," 
  p. 
  62 
  (1895); 
  Meyr., 
  "Handbook," 
  etc., 
  p. 
  431 
  (1895); 
  Hofmn., 
  

   " 
  Deutsch. 
  Pteroph.," 
  p. 
  105 
  (1895) 
  ; 
  Bankes, 
  "Ent. 
  Rec," 
  xii., 
  p. 
  165 
  (1900) 
  ; 
  

   Tutt, 
  " 
  Ent. 
  Rec," 
  xii., 
  p. 
  217 
  (1900) 
  ; 
  Staud. 
  and 
  Reb., 
  "Cat.." 
  3rd 
  ed., 
  p. 
  71 
  

   (1901) 
  ; 
  Barr., 
  " 
  Lep. 
  Brit. 
  Isles," 
  ix., 
  p. 
  365, 
  pi. 
  414, 
  figs. 
  1-la 
  (1904). 
  Didactyla, 
  

   Haw., 
  " 
  Lep. 
  Brit.," 
  p. 
  479 
  (1811). 
  Didactylus, 
  Sam., 
  "Ent. 
  Usef. 
  Comp.," 
  p. 
  

   409 
  (1819); 
  Stphs., 
  "Illus. 
  Haust.," 
  p. 
  377, 
  in 
  part 
  (1834). 
  Trichodactyla, 
  

   Stphs., 
  "Illus. 
  Haust.," 
  app. 
  p. 
  424, 
  in 
  part 
  (1835). 
  Tristis 
  var. 
  b, 
  Zell., 
  "Isis." 
  

   p. 
  38 
  (1847). 
  Laetus, 
  Jord., 
  " 
  Ent. 
  Mo. 
  Mag.," 
  vi., 
  p. 
  122 
  (1869) 
  ; 
  Knaggs, 
  " 
  Ent. 
  

   Ann.," 
  p. 
  127 
  (1869); 
  South, 
  "Ent.," 
  xv., 
  p. 
  35 
  (1882); 
  Barr., 
  "Ent, 
  Mo. 
  Mag.," 
  

   xviii.," 
  p. 
  178 
  (1882); 
  South, 
  "Ent.," 
  xxii., 
  pp. 
  32, 
  103 
  (1889). 
  ' 
  Laetidactylus, 
  

   Brd., 
  "Ann. 
  Soc. 
  Ent. 
  Fr.," 
  p. 
  34, 
  pi. 
  ii., 
  fig. 
  7 
  (1S61).] 
  

  

  Original 
  description. 
  — 
  Alis 
  anterioribus 
  Luteo-fuscescentibuSj 
  

   laciniis 
  obsolete 
  albido-bisfcrigatis; 
  digiti 
  tertii 
  dorso 
  pone 
  medium 
  atro- 
  

   squamato 
  (<? 
  $ 
  ). 
  :;: 
  After 
  a 
  long 
  and 
  very 
  careful 
  examination, 
  1 
  con- 
  

   sider 
  it 
  preferable 
  to 
  declare 
  the 
  examples 
  taken 
  in 
  Asia 
  Minor 
  and 
  Italy 
  

   a 
  separate 
  1 
  species, 
  as 
  I 
  did 
  P. 
  tristis, 
  in 
  the 
  list 
  of 
  the 
  moths 
  from 
  Asia 
  

   Minor 
  (Isis, 
  1817, 
  p. 
  88). 
  They 
  belong 
  to 
  two 
  sections 
  of 
  Pterophorus 
  in 
  

  

  * 
  This 
  was 
  extended, 
  in 
  L852 
  (Linn. 
  EnU, 
  vi., 
  p, 
  345), 
  to: 
  ••Major, 
  alis 
  

   anterioribus 
  luteo-fusoesoentibus, 
  laciniis 
  obsolete 
  albido-bistrigatis, 
  arcu 
  latinise 
  

   posterioris 
  marginali 
  albido 
  ; 
  digiti 
  tertii 
  dorso 
  longe 
  ante 
  apioem 
  atro-squamato 
  

  

  (s 
  ?)•" 
  

  

  