﻿REPORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  347 
  

  

  from 
  the 
  spaces 
  between 
  the 
  bosses 
  are 
  slender, 
  short, 
  very 
  minute 
  hairs, 
  

   originating 
  from 
  a 
  swollen 
  base. 
  Under 
  a 
  one- 
  fifth 
  objective, 
  as 
  well 
  as 
  

   a 
  one-half 
  and 
  a 
  triplet, 
  I 
  can 
  not 
  distinguish 
  between 
  the 
  microscopic 
  

   structure 
  and 
  markings 
  of 
  imperialis 
  3in6rega/is. 
  

  

  Just 
  before 
  hatchmg 
  the 
  eggs 
  are 
  yellowish 
  with 
  reddish 
  spots 
  or 
  clouds 
  

  

  maculating 
  their 
  circumference. 
  

  

  Description 
  of 
  the 
  larval 
  stages. 
  Young 
  larva. 
  The 
  newly 
  

   emerged 
  larva 
  measures 
  \ 
  inch 
  in 
  length. 
  The 
  head 
  is 
  red, 
  round 
  and 
  

   smooth. 
  Body 
  of 
  a 
  dull 
  red 
  color, 
  armed, 
  except 
  on 
  the 
  last 
  two 
  seg- 
  

   ments, 
  with 
  six 
  rows 
  of 
  bristle-tipped 
  spines 
  : 
  the 
  subdorsal 
  spines 
  on 
  the 
  

   second 
  and 
  third 
  segments 
  are 
  nearly 
  one 
  third 
  the 
  length 
  of 
  the 
  body, 
  

   black, 
  rugose, 
  bifurcated, 
  each 
  prong 
  tipped 
  with 
  a 
  white 
  acute 
  bristle; 
  

   on 
  the 
  top 
  of 
  the 
  nth 
  segment 
  is 
  a 
  similar 
  spine 
  resting 
  on 
  a 
  red, 
  conical 
  

   tubercle. 
  The 
  segments 
  are 
  annulated 
  with 
  three 
  fuscous 
  bands 
  termi- 
  

   nating 
  laterally 
  at 
  the 
  stigmatal 
  flexure, 
  of 
  which 
  one 
  precedes, 
  and 
  two 
  

   follow 
  the 
  spines 
  : 
  the 
  terminal 
  segment 
  declines 
  considerably 
  from 
  the 
  

   plane 
  of 
  the 
  others. 
  Legs, 
  black 
  ; 
  prolegs, 
  red. 
  

  

  First 
  molt. 
  Length 
  of 
  larva 
  \ 
  inch. 
  Head 
  glossy, 
  ferruginous, 
  fus- 
  

   cus 
  at 
  the 
  clypeus 
  and 
  about 
  the 
  eyes. 
  Collar 
  and 
  terminal 
  segments, 
  

   ferruginous. 
  The 
  segments 
  are 
  testaceous 
  centrally, 
  shading 
  into 
  an 
  

   obscure 
  red 
  at 
  the 
  incisures, 
  the 
  transverse 
  bands 
  which 
  had 
  previously 
  

   marked 
  them 
  having 
  disappeared. 
  The 
  spines 
  are 
  glossy 
  black 
  with 
  

   branches 
  tipped 
  with 
  white 
  acute 
  bristles 
  ; 
  the 
  two 
  long 
  spines 
  of 
  the 
  

   second 
  and 
  third 
  segments 
  each 
  and 
  the 
  medial 
  one 
  ofthe 
  nth, 
  which 
  are 
  

   about 
  one 
  fifth 
  the 
  length 
  of 
  the 
  body, 
  are 
  directed 
  slightly 
  forward; 
  

   their 
  two 
  forks 
  are 
  of 
  unequal 
  size 
  ; 
  the 
  last 
  mentioned 
  spine 
  is 
  in 
  addition 
  

   to 
  the 
  six 
  of 
  the 
  preceding 
  segments, 
  and 
  ranges 
  with 
  the 
  four 
  substig- 
  

   matal 
  and 
  lateral 
  spines, 
  the 
  two 
  subdorsal 
  being 
  placed 
  farther 
  back 
  on 
  

   the 
  segment: 
  the 
  terminal 
  segment 
  has 
  13 
  spines, 
  viz, 
  six 
  occupying 
  the 
  

   usual 
  position, 
  a 
  seventh 
  medial 
  one 
  behind 
  the 
  range 
  of 
  the 
  preceding, 
  

   four 
  on 
  the 
  anal 
  shield, 
  of 
  which 
  the 
  two 
  anterior 
  are 
  the 
  larger 
  (four 
  

   others 
  are 
  indicated 
  by 
  acute 
  granulations 
  on 
  the 
  posterior 
  margin), 
  and 
  

   a 
  small 
  one 
  on 
  each 
  terminal 
  leg 
  exteriorly. 
  The 
  stigmata 
  are 
  broadly 
  

   eUiptic, 
  fuscous, 
  and 
  situated 
  on 
  a 
  distinct, 
  elliptic, 
  testaceous 
  spot. 
  

   Legs 
  and 
  prolegs 
  testaceous, 
  marked 
  outwardly 
  with 
  fuscous. 
  

  

  Second 
  molt. 
  July 
  17. 
  Length, 
  y^^ 
  inch. 
  Immediately 
  succeeding 
  

   the 
  molt 
  the 
  head 
  is 
  pale 
  red, 
  and 
  the 
  long 
  spines 
  before 
  noticed, 
  now 
  

   appearing 
  as 
  horns, 
  are 
  pearly 
  white. 
  

  

  Three 
  days 
  thereafter, 
  the 
  larva 
  measures 
  y% 
  inch 
  in 
  length. 
  The 
  

   head 
  is 
  dull 
  ferruginous, 
  with 
  fuscous 
  centrally 
  and 
  laterally. 
  The 
  body 
  

  

  