﻿348 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  is 
  of 
  an 
  umber 
  brown, 
  lighter 
  at 
  the 
  incisures, 
  gray 
  dorsally 
  with 
  a 
  dark 
  

   vascular 
  line; 
  segments 
  with 
  a 
  few 
  white 
  haira, 
  the 
  longest 
  of 
  which 
  sur- 
  

   round 
  the 
  subdorsal 
  spines; 
  horns 
  of 
  second, 
  third 
  and 
  nth 
  segments 
  

   curved, 
  glossy 
  black, 
  with 
  base 
  luteous; 
  spines 
  dull 
  black. 
  Anal 
  shield 
  

   marked 
  with 
  a 
  cordiform, 
  gloss)^ 
  black 
  spot, 
  having 
  central 
  and 
  marginal 
  

   rufescent 
  granulations 
  ; 
  anal 
  plates 
  with 
  a 
  subtriangular, 
  granulated 
  fus- 
  

   cous 
  impression. 
  Stigmata 
  surrounded 
  with 
  a 
  dark 
  brown 
  ring. 
  Legs 
  

   shming 
  black; 
  prolegs 
  with 
  a 
  black 
  spot 
  exteriorly, 
  and 
  with 
  fuscous 
  

   near 
  the 
  plantae. 
  

  

  Third 
  molt. 
  Length, 
  i 
  inch. 
  The 
  head 
  and 
  color 
  of 
  the 
  body 
  are 
  as 
  

   before. 
  A 
  marked 
  feature 
  at 
  this 
  stage 
  is 
  the 
  presence 
  of 
  long 
  white 
  

   hairs 
  given 
  out 
  from 
  the 
  central 
  portion 
  of 
  the 
  segments, 
  of 
  which 
  the 
  

   superior 
  ones 
  are 
  nearly 
  twice 
  the 
  length 
  of 
  the 
  thoracic 
  horns, 
  and 
  the 
  

   lateral 
  ones 
  shorter; 
  similar 
  hairs 
  of 
  medium 
  length 
  project 
  laterally 
  over 
  

   the 
  proleg-bases. 
  The 
  horns 
  are 
  -^^ 
  inch 
  long, 
  of 
  a 
  honey-yellow 
  

   color, 
  and 
  are 
  studded 
  with 
  conical 
  projections 
  (of 
  which 
  the 
  two 
  apicaj 
  

   are 
  fuscous), 
  bearing 
  a 
  short, 
  acute, 
  fuscous 
  spinule. 
  The 
  spines 
  of 
  the 
  

   two 
  subdorsal 
  rows 
  are 
  -^\-^ 
  inch 
  long, 
  of 
  the 
  color 
  of 
  the 
  head, 
  and 
  

   (except 
  two 
  exterior 
  to 
  the 
  horns) 
  have 
  two 
  fuscous, 
  spinule-tippcd 
  

   projections. 
  The 
  lateral 
  row 
  consists 
  of 
  tubercles, 
  of 
  which 
  those 
  on 
  

   the 
  anterior 
  segments 
  are 
  simple, 
  and 
  on 
  the 
  terminal 
  ones 
  branched, 
  of 
  

   a 
  darker 
  shade 
  of 
  color 
  than 
  the 
  subdorsal 
  spines. 
  The 
  substigmatal 
  row 
  

   is 
  composed 
  of 
  still 
  smaller 
  simple 
  tubercles. 
  Anal 
  shield 
  brown 
  with 
  

   whitish 
  granulations, 
  bordered 
  with 
  tubercles, 
  of 
  which 
  two 
  are 
  branched; 
  

   anal 
  plates 
  fuscous 
  centrally. 
  Legs 
  ferruginous 
  ; 
  prolegs 
  fuscous 
  on 
  the 
  

   outer 
  side. 
  

  

  Fourth 
  molt. 
  Length, 
  if 
  inch. 
  A 
  marked 
  change 
  occurs 
  in 
  the 
  

   horns 
  at 
  this 
  molting. 
  From 
  being 
  as 
  heretofore 
  cylindric 
  they 
  are 
  now 
  

   conical, 
  are 
  armed 
  with 
  stout 
  spinules, 
  and 
  have 
  become 
  shorter 
  ; 
  the 
  

   the 
  length 
  of 
  the 
  thoracic 
  ones 
  is 
  -^W 
  inch, 
  of 
  the 
  posterior 
  one, 
  -^^ 
  inch. 
  

   The 
  anal 
  plates 
  are 
  conspicuously 
  marked 
  with 
  whitish 
  granulations. 
  

   The 
  stigmata 
  are 
  brown, 
  with 
  a 
  central 
  line 
  and 
  border 
  of 
  white, 
  sur- 
  

   rounded 
  with 
  fuscous 
  on 
  a 
  subquadrangular 
  testaceous 
  patch.** 
  

  

  The 
  full 
  grown 
  larvae 
  have 
  been 
  described 
  by 
  Dr 
  Harris 
  as 
  follows 
  : 
  

  

  They 
  are 
  from 
  3 
  to 
  4 
  inches 
  in 
  length, 
  and 
  more 
  than 
  \ 
  inch 
  in 
  

   diameter, 
  and, 
  for 
  the 
  most 
  part, 
  of 
  a 
  green 
  color, 
  slightly 
  tmged 
  with 
  red 
  

   on 
  the 
  back; 
  but 
  many 
  of 
  them 
  become 
  more 
  or 
  less 
  tanned 
  or 
  swarthy, 
  

   and 
  are 
  sometimes 
  found 
  entirely 
  brown. 
  There 
  are 
  a 
  few 
  very 
  short 
  

  

  a 
  Lintner, 
  J. 
  A. 
  Entomological 
  contributions, 
  no. 
  2, 
  contained 
  in 
  the 
  24th 
  annual 
  report 
  of 
  

   the 
  New 
  York 
  state 
  museum, 
  1870, 
  p. 
  150-54. 
  

  

  