﻿REPORT 
  OF 
  THE 
  STATE 
  ENTOMOLOGIST 
  221 
  

  

  The 
  larva 
  when 
  full 
  grown 
  measures 
  about 
  half 
  an 
  inch 
  in 
  length. 
  It 
  

   is 
  almost 
  cylindrical, 
  sixteen-foo 
  ed, 
  of 
  a 
  very 
  pale 
  green 
  color, 
  divided 
  

   into 
  fourteen 
  segments 
  by 
  rather 
  deep 
  wide 
  transverse 
  constrictions. 
  It 
  

   has 
  two 
  rows 
  of 
  elevated 
  white 
  spots 
  along 
  the 
  back, 
  and 
  one 
  along 
  each 
  

   side, 
  each 
  segment 
  having 
  one 
  spot 
  in 
  each 
  row, 
  or 
  four 
  spots 
  in 
  all 
  and 
  

   between 
  the 
  spots 
  is 
  a 
  smaller 
  white 
  elevated 
  dot, 
  and 
  anotiier 
  similar 
  

   dot 
  below 
  the 
  lower 
  spots. 
  From 
  each 
  of 
  these 
  elevated 
  S(-ots 
  and 
  dots 
  

   white 
  bristles 
  of 
  different 
  lengths 
  stand 
  out 
  in 
  all 
  directions. 
  (PI. 
  IV, 
  

   fig- 
  4-) 
  

  

  Life-history 
  of 
  the 
  Insect. 
  

  

  There 
  seems 
  to 
  be 
  very 
  little 
  definite 
  knowledge 
  of 
  the 
  life-history 
  of 
  

   this 
  insect. 
  The 
  larvae 
  may 
  be 
  found 
  soon 
  after 
  the 
  leaves 
  bt- 
  gin 
  to 
  

   appear, 
  and 
  complete 
  their 
  growth 
  during 
  the 
  last 
  of 
  May 
  or 
  early 
  in 
  

   June. 
  Prof 
  Riley 
  gives 
  the 
  duration 
  of 
  the 
  larval 
  existence 
  as 
  about 
  

   three 
  weeks. 
  Several 
  larvae 
  received 
  from 
  Prof. 
  Peck 
  the 
  past 
  season 
  

   pupated 
  May 
  25th 
  and 
  others 
  June 
  ist. 
  The 
  moths 
  emerge 
  about 
  the 
  

   middle 
  ofi 
  June. 
  From 
  this 
  time 
  until 
  the 
  appearance 
  of 
  the 
  caterpillars 
  

   on 
  the 
  vines 
  the 
  following 
  spring, 
  nothing 
  definite 
  seems 
  to 
  be 
  known 
  of 
  

   the 
  life-history 
  of 
  this 
  insect. 
  There 
  is 
  but 
  a 
  single 
  brood 
  in 
  a 
  season, 
  

   according 
  to 
  Dr. 
  Fernald. 
  Mr. 
  Saunders 
  is 
  of 
  the 
  same 
  opinion 
  and 
  he 
  

   suggests 
  that 
  it 
  may 
  pass 
  the 
  winter 
  in 
  eggs 
  deposited 
  on 
  the 
  canes 
  of 
  the 
  

   vines 
  near 
  the 
  base 
  of. 
  the 
  bud 
  from 
  which 
  the 
  next 
  year's 
  branch 
  is 
  de- 
  

   veloped. 
  Prof. 
  Riley, 
  reasoning 
  from 
  analogy, 
  suggests 
  that 
  the 
  insect 
  

   has 
  two 
  annual 
  broods 
  and 
  that 
  the 
  second 
  hibernates 
  in 
  the 
  adult 
  form. 
  

   According 
  to 
  Furneaux,* 
  the 
  late 
  feeding 
  Pterophori 
  emerge 
  in 
  the 
  

   autumn 
  and 
  hibernate 
  as 
  moths, 
  but 
  of 
  the 
  hibernation 
  of 
  the 
  earlier 
  

   appearing 
  ones 
  no 
  hint 
  is 
  given. 
  It 
  is 
  in 
  the 
  imago 
  state 
  that 
  the 
  

   second 
  brood 
  of 
  the 
  English 
  Agdistis 
  be?ineiii 
  passes 
  the 
  winter 
  (see 
  

   Fernald 
  loc. 
  cit.). 
  No 
  one 
  has 
  reported 
  examples 
  of 
  a 
  second 
  brocd 
  of 
  

   O. 
  periscelidactyliis, 
  although 
  several 
  careful 
  observers 
  have 
  looked 
  for 
  

   them. 
  The 
  moths 
  of 
  the 
  single-brooded 
  Alucita 
  hexadactyla 
  emerge 
  in 
  

   England 
  durmg 
  August, 
  and 
  remain 
  on 
  the 
  wing 
  until 
  October, 
  and 
  

   then 
  hibernate. 
  After 
  making 
  due 
  allowance 
  for 
  the 
  difference 
  in 
  climate 
  

   between 
  this 
  country 
  and 
  England, 
  it 
  seems 
  reasonable 
  to 
  suggest 
  that 
  

   our 
  gartered 
  plume 
  may 
  fliy 
  through 
  July 
  into 
  August 
  under 
  normal 
  con- 
  

   ditions, 
  and 
  then 
  pass 
  into 
  hibernation, 
  or, 
  as 
  suggested 
  by 
  Mr. 
  Saunders, 
  

   it 
  may 
  winter 
  in 
  the 
  egg 
  state. 
  There 
  appears 
  to 
  be 
  little 
  ground 
  lor 
  

   supposing 
  the 
  insect 
  to 
  be 
  double-brooded. 
  

  

  Of 
  a 
  large 
  number 
  of 
  the 
  moihs 
  which 
  were 
  reared 
  during 
  the 
  latter 
  

   half 
  of 
  June 
  — 
  a 
  few 
  days 
  after 
  they 
  had 
  emerged, 
  several 
  were 
  observed 
  

  

  *ButterJlies 
  and 
  Moths 
  {British)^ 
  1894, 
  p. 
  294. 
  

  

  