﻿238 
  Thietieth 
  Repoet 
  oisr 
  the 
  State 
  Museum. 
  C1261 
  

  

  stigmata 
  and 
  a 
  number 
  of 
  black 
  spots, 
  as 
  follows 
  : 
  on 
  the 
  first 
  

   segment, 
  a 
  black 
  spot 
  precedes 
  the 
  stigma 
  ; 
  on 
  segments 
  4-9 
  

   and 
  11, 
  a 
  black 
  spot 
  behind 
  the 
  stigma, 
  bearing 
  a 
  black 
  hair; 
  

   on 
  segments 
  4-9 
  each, 
  on 
  the 
  white 
  portion 
  of 
  the 
  band, 
  a 
  

   larger, 
  rounded 
  black 
  spot 
  above, 
  and 
  a 
  little 
  in 
  advance 
  of, 
  

   the 
  stigma, 
  having 
  within 
  it 
  a 
  longer 
  black 
  hair," 
  

  

  It 
  is 
  probable 
  that 
  the 
  larva 
  may 
  again 
  be 
  found 
  the 
  coming 
  

   season, 
  to 
  afford 
  the 
  means 
  of 
  completing 
  the 
  above 
  descrip- 
  

   tion, 
  which 
  is 
  quite 
  desirable 
  in 
  ' 
  consideration 
  of 
  its 
  close 
  re- 
  

   semblance 
  to 
  that 
  of 
  the 
  European 
  Q. 
  luclfuga. 
  The 
  mature 
  

   forms 
  taken 
  at 
  Center 
  bore 
  a 
  closer 
  resemblance 
  to 
  C. 
  lucifuga 
  

   than 
  did 
  my 
  Schoharie 
  examples. 
  Dr. 
  Speyer 
  {St 
  Mus. 
  Rep. 
  

   ut 
  cit., 
  p. 
  222), 
  in 
  indicating 
  the 
  difference 
  between 
  the 
  two, 
  

   states 
  "the 
  first 
  [intermedia] 
  has 
  thirteen 
  dorsal 
  spots, 
  the 
  

   other 
  twenty-five." 
  The 
  examples 
  collected 
  as 
  above, 
  show 
  

   that 
  the 
  number, 
  shape 
  and 
  division 
  of 
  these 
  spots 
  are 
  not 
  

   constant, 
  and 
  that 
  therefore, 
  from 
  such 
  numerical 
  or 
  geome 
  

   trical 
  features, 
  no 
  reliable 
  specific 
  characters 
  are 
  to 
  be 
  drawn. 
  

   I 
  am 
  able 
  to 
  recall 
  my 
  enumeration 
  of 
  eighteen 
  dorsal 
  orange 
  

   spots 
  on 
  one 
  of 
  the 
  larvae. 
  

  

  In 
  some 
  notes 
  on 
  this 
  larva, 
  published 
  by 
  me 
  in 
  1873, 
  in 
  

   the 
  23rd 
  Hep. 
  St 
  Mus. 
  Nat 
  Hist, 
  p. 
  213, 
  its 
  probable 
  food- 
  

   plant 
  is 
  given 
  as 
  the 
  common 
  burdock 
  {Lappa 
  officinalis), 
  

   as 
  inferred 
  from 
  finding 
  several 
  examples 
  near 
  this 
  plant, 
  and 
  

   some 
  of 
  the 
  larvse 
  having 
  fed 
  upon 
  it 
  in 
  confinement. 
  I 
  now 
  

   incline 
  to 
  the 
  belief 
  that 
  their 
  eating 
  the 
  burdock 
  was 
  under 
  

   the 
  provocation 
  of 
  hunger, 
  and 
  that 
  their 
  range 
  of 
  food 
  under 
  

   natural 
  conditions 
  would 
  not 
  extend 
  to 
  a 
  plant 
  so 
  different 
  in 
  

   character 
  from 
  that 
  of 
  the 
  blue 
  lettuce. 
  It 
  is 
  an 
  interesting 
  

   fact 
  that 
  in 
  its 
  systematic 
  arrangement, 
  the 
  genus 
  Mulgedium 
  

   stands 
  between 
  Lactuca 
  and 
  Sonchus, 
  the 
  two 
  genera 
  which 
  

   embrace, 
  in 
  Europe, 
  the 
  food-plants 
  of 
  C. 
  lucifuga 
  (see 
  loc. 
  

   cit.., 
  p. 
  214). 
  As 
  two 
  of 
  these 
  plants, 
  Sonchus 
  oleraceus 
  and 
  

   S. 
  arvensis 
  have 
  been 
  introduced 
  in 
  this 
  country 
  from 
  Europe, 
  

   and 
  the 
  former 
  has 
  become 
  quite 
  common 
  around 
  dwellings 
  

   and 
  by 
  roadsides 
  in 
  New 
  York, 
  it 
  is 
  not 
  improbable 
  that 
  the 
  

   O. 
  intermedia 
  larva 
  may 
  hereafter 
  be 
  discovered 
  upon 
  them. 
  

   I 
  have 
  repeatedly 
  examined 
  the 
  burdock 
  for 
  the 
  larvae, 
  but 
  

   without 
  success. 
  

  

  