﻿MARASMARCHA 
  LUN^DACTYLA. 
  389 
  

  

  wing 
  and 
  the^ 
  first 
  segment 
  of 
  the 
  hindwing, 
  and, 
  finally, 
  by 
  the 
  

   absence 
  of 
  branch 
  II 
  2 
  of 
  the 
  forewings." 
  Chapman's 
  discovery 
  of 
  

   Alucitine 
  characters 
  in 
  the 
  structure 
  of 
  the 
  $ 
  genitalia 
  of 
  some 
  of 
  

   the 
  species 
  in 
  this 
  group 
  is 
  most 
  important, 
  as 
  these 
  characters 
  have 
  

   no 
  parallel 
  in 
  any 
  other 
  group 
  on 
  the 
  Platyptiliid 
  side 
  of 
  the 
  

   "plume" 
  stirps. 
  

  

  Marasmarcha 
  lunaedactyla, 
  Haworth. 
  

   Synonymy. 
  — 
  Species: 
  Lunaedactyla, 
  Haw., 
  " 
  Lep. 
  Brit.," 
  p. 
  477 
  (1811). 
  

   Lunaedactylus, 
  Sam., 
  " 
  Ent. 
  Usef. 
  Comp.," 
  p. 
  409 
  (1819); 
  Curt., 
  "Brit., 
  Ent.," 
  

   fo. 
  161(1827); 
  Stphs., 
  " 
  Illus. 
  Haust.," 
  iv., 
  p. 
  374 
  (1834). 
  Phseodactyla, 
  Hb., 
  

   " 
  Schmett. 
  Eur.," 
  Aluc. 
  ix., 
  figs. 
  14-15 
  (circ. 
  1819); 
  " 
  Verz.," 
  p. 
  430 
  (1825); 
  

   Treits., 
  "Die 
  Schmett.," 
  ix., 
  p. 
  240 
  (1833); 
  Stphs., 
  "Illus. 
  Haust.," 
  iv., 
  app. 
  p. 
  424 
  

   (1834); 
  Tutt, 
  "Ent. 
  Bee," 
  i., 
  p. 
  92 
  (1890); 
  "Brit. 
  Nat.," 
  ii., 
  p. 
  63 
  (1892); 
  

   " 
  Pter. 
  Brit.," 
  p. 
  82 
  (1895); 
  Meyr., 
  "Trans. 
  Ent. 
  Soc. 
  Lond.," 
  p. 
  4S8 
  (1890); 
  " 
  Hand- 
  

   book," 
  p. 
  438 
  (1895); 
  Hofmn., 
  "Deutsch. 
  Pter.," 
  p. 
  93 
  (1895); 
  Staud. 
  and 
  Reb., 
  

   "Cat.," 
  3rded.,p. 
  75(1901). 
  Phseodactylus, 
  Curt., 
  "Brit. 
  Ent.," 
  fo. 
  161 
  (1827); 
  

   Dup., 
  " 
  Hist. 
  Nat.," 
  xi., 
  p. 
  657, 
  pi. 
  313, 
  fig. 
  10 
  (1838); 
  Zell., 
  "Ms," 
  p. 
  834 
  (1841); 
  

   Dup., 
  "Cat. 
  Meth.," 
  p. 
  382 
  (1844); 
  Zell., 
  "Linn. 
  Ent.," 
  vi., 
  p. 
  356 
  (1852); 
  H.-Sch., 
  

   " 
  Sys. 
  Bearb.," 
  v., 
  p. 
  378 
  (1855); 
  Frey, 
  " 
  Tin. 
  Pter. 
  Schweiz," 
  p. 
  410 
  (1856); 
  Sta., 
  

   "Man.," 
  ii., 
  p. 
  442 
  (1859) 
  ; 
  Jord., 
  "Ent. 
  Mo. 
  Mag.," 
  vi., 
  p. 
  124 
  (1869) 
  ; 
  Slaud. 
  

   and 
  Wocke, 
  "Cat.," 
  2nd 
  ed., 
  p. 
  343 
  (1871); 
  Nolck., 
  "Lep. 
  Faun. 
  Est.," 
  p. 
  805 
  

   (1871) 
  ; 
  Hein. 
  and 
  Wocke, 
  " 
  Schmett. 
  Deutsch.," 
  iii., 
  pt. 
  2, 
  p. 
  793 
  (1877) 
  ; 
  Frey, 
  

   "Lep. 
  Schweiz," 
  p. 
  430(1880) 
  ; 
  South, 
  "Ent.," 
  xvi., 
  p. 
  75, 
  pi. 
  ii., 
  figs. 
  3-3c(1883); 
  

   Leech, 
  "Brit. 
  Pyr.," 
  p. 
  59, 
  pi. 
  xvii., 
  fig. 
  4 
  (1886) 
  ; 
  Tutt, 
  " 
  Young 
  Nat.," 
  x., 
  p. 
  164 
  

   (1889) 
  ; 
  Porritt, 
  " 
  Buckler's 
  Lame," 
  ix., 
  p. 
  357 
  (1901) 
  ; 
  Barr., 
  "Lep. 
  Brit. 
  Isles," 
  

   ix., 
  p. 
  373, 
  pi. 
  415, 
  figs. 
  4-4& 
  (1904). 
  Lunadactylus, 
  Wood, 
  " 
  Ind. 
  Ent.," 
  Isted., 
  

   p. 
  236, 
  pl. 
  Ii., 
  fig. 
  1640 
  ( 
  a 
  ) 
  (1839). 
  Pallidactylus, 
  Wood, 
  " 
  Ind. 
  Ent.," 
  p. 
  236, 
  

   pi. 
  Ii., 
  fig. 
  1641 
  ( 
  ? 
  pale) 
  (1839). 
  

  

  Original 
  description. 
  — 
  Alucita 
  lunaedactyla 
  (The 
  crescent 
  Plume). 
  

   Alis 
  anticis 
  fusco-brunneis 
  lunula 
  postica 
  albida. 
  Habitat 
  in 
  Cantio 
  

   propeDarn 
  Wood 
  Graminosis, 
  at 
  infrequens. 
  Expansio 
  alarum 
  11 
  lin. 
  

   Descriptio 
  : 
  Alse 
  anticas 
  bifidae 
  sordide 
  brunneae 
  immaculate, 
  fascia 
  

   lunuMormi 
  sen 
  paululum 
  arcuata 
  ad 
  fissuram 
  albo-flavicante. 
  Postica 
  1 
  

   tripartita? 
  fuscae 
  (Haworth, 
  Lepidoptera 
  Britannica, 
  pp. 
  477-478). 
  

  

  Imago. 
  — 
  18mm. 
  -20mm. 
  in 
  expanse. 
  Anterior 
  wings, 
  with 
  the 
  two 
  

   lobes 
  almost 
  pointed, 
  of 
  a 
  dark 
  cinnamon-brown 
  colour, 
  darker 
  on 
  the 
  

   costa; 
  a 
  pale 
  lunar 
  mark 
  extending 
  from 
  the 
  costa 
  to 
  the 
  inner 
  margin 
  

   just 
  before 
  the 
  fissure, 
  and 
  continued 
  into 
  the 
  fringe; 
  a 
  pale 
  transverse 
  

   line 
  crossing 
  the 
  upper 
  and 
  lower 
  lobes, 
  commencing 
  from 
  apex; 
  

   the 
  discal 
  area 
  streaked 
  longitudinally 
  with 
  pale 
  ochreous 
  ; 
  the 
  inner 
  

   margin 
  also 
  pale 
  ochreous, 
  markedly 
  so 
  towards 
  the 
  base 
  ; 
  fringes 
  

   rather 
  darker 
  than 
  the 
  ground 
  colour 
  of 
  the 
  wing, 
  with 
  a 
  pale 
  dash 
  at 
  

   apex 
  of 
  upper 
  lobe, 
  and 
  pale 
  latticings 
  in 
  lower 
  lobe. 
  The 
  posterior 
  

   wings 
  glossy 
  golden-brown, 
  the 
  plumules 
  narrow, 
  the 
  lower 
  border 
  of 
  

   each 
  plumule 
  narrowly 
  ochreous 
  ; 
  fringes 
  dark 
  grey 
  ; 
  a 
  bright 
  brown 
  

   patch 
  of 
  cilia 
  at 
  apex 
  of 
  each 
  plumule. 
  

  

  Sexual 
  dimorphism. 
  — 
  -There 
  is 
  a 
  very 
  marked 
  distinction 
  in 
  the 
  

   colour 
  of 
  the 
  sexes; 
  the 
  ^ 
  s 
  being 
  much 
  darker 
  brown, 
  the 
  9 
  a 
  paler, 
  more 
  

   ochreous. 
  This 
  is 
  accompanied 
  by 
  a, 
  stumpier 
  build 
  in 
  the 
  9 
  ■ 
  which 
  

   has 
  a 
  particularly 
  heavy 
  body 
  when 
  freshly 
  emerged 
  from 
  the 
  pupa. 
  

  

  Male 
  genitalia. 
  -The 
  male 
  genitalia 
  are 
  very 
  peculiar 
  (Deutsch, 
  

   Pteroph., 
  taf. 
  iii., 
  fig. 
  7). 
  The 
  9th 
  dorsal 
  plate 
  is 
  narrow, 
  divided 
  in 
  

   the 
  centre, 
  laterally 
  rather 
  produced 
  downwards. 
  Instead 
  of 
  the 
  

   uncus 
  (10th 
  dorsal 
  plate), 
  there 
  is 
  here 
  a 
  roundish 
  process 
  to 
  be 
  

   noticed, 
  springing 
  from 
  a. 
  broad 
  base, 
  pointed 
  behind, 
  hollow 
  below. 
  

   which 
  is 
  furnished 
  outwardly, 
  on 
  both 
  sides, 
  with 
  a 
  tuft 
  of 
  bristles. 
  

   Helow 
  this 
  10th 
  dorsal 
  plate, 
  and 
  below 
  tin- 
  anus, 
  there 
  is 
  lure, 
  in 
  

  

  