﻿96 
  DECIDUOUS 
  FRUIT 
  INSECTS 
  AND 
  INSECTICIDES. 
  

  

  DESCRIPTION 
  OF 
  STAGES. 
  

   THE 
  ADULT. 
  

  

  This 
  leaf 
  -roller 
  was 
  first 
  characterized 
  and 
  named 
  in 
  1863 
  by 
  

   Walker 
  in 
  the 
  Catalogue 
  of 
  the 
  British 
  Museum, 
  volume 
  28, 
  page 
  

   373, 
  as 
  Betinia 
  argyrospila. 
  The 
  original 
  description 
  is 
  as 
  follows: 
  

  

  Female. 
  Reddish, 
  cinereous 
  beneath. 
  Head 
  ochraceous; 
  palpi 
  porrect, 
  broad, 
  

   extending 
  very 
  little 
  beyond 
  the 
  head; 
  third 
  joint 
  extremely 
  short. 
  Abdomen 
  

   cinereous, 
  extending 
  a 
  little 
  beyond 
  the 
  hind 
  wings. 
  Forewings 
  rectangular 
  at 
  the 
  

   tips, 
  with 
  several 
  transverse 
  slightly 
  undulating 
  black 
  streaks; 
  space 
  along 
  the 
  

   interior 
  border 
  and 
  some 
  incomplete 
  irregular 
  bands 
  silvery 
  cinereous; 
  costa 
  straight, 
  

   with 
  three 
  large 
  silvery 
  white 
  marks, 
  exterior 
  border 
  slightly 
  oblique 
  hind 
  ward. 
  

   Hind 
  wings 
  brownish 
  cinereous. 
  Length 
  of 
  the 
  body 
  3| 
  lines: 
  of 
  the 
  wings 
  10 
  lines. 
  

  

  a. 
  Georgia. 
  From 
  Mr. 
  Milne's 
  collection. 
  

  

  The 
  moths 
  measure 
  from 
  17 
  to 
  23 
  mm. 
  across 
  the 
  expanded 
  wings. 
  

   The 
  length 
  of 
  the 
  body 
  varies 
  from 
  8 
  to 
  10 
  mm. 
  There 
  is 
  a 
  wide 
  

   variation 
  in 
  color. 
  The 
  general 
  color 
  of 
  the 
  forewings 
  varies 
  from 
  a 
  

   light 
  brown 
  to 
  a 
  cinnamon 
  or 
  rusty 
  brown. 
  The 
  markings 
  on 
  the 
  

   forewings 
  also 
  show 
  a 
  variation 
  in 
  size, 
  pattern, 
  and 
  color. 
  Ordinarily 
  

   each 
  forewing 
  has 
  three 
  whitish 
  markings. 
  The 
  hind 
  wings 
  are 
  

   without 
  markings 
  and 
  are 
  of 
  a 
  uniform 
  ashy-gray 
  color. 
  (PL 
  XVI, 
  

   fig. 
  2, 
  at 
  left.) 
  

  

  THE 
  EGG. 
  

  

  The 
  eggs 
  are 
  deposited 
  in 
  sightly 
  convex, 
  oval 
  masses 
  or 
  patches 
  

   which 
  vary 
  in 
  color 
  from 
  a 
  light 
  gray 
  to 
  a 
  dark 
  brown. 
  The 
  egg 
  

   masses 
  are 
  covered 
  by 
  a 
  hard 
  protective 
  coating. 
  The 
  size 
  of 
  the 
  

   masses 
  is 
  variable. 
  The 
  average 
  for 
  20 
  was 
  found 
  to 
  be 
  5.1 
  by 
  2.6 
  mm. 
  

   The 
  average 
  number 
  of 
  eggs 
  per 
  mass 
  is 
  about 
  90. 
  The 
  individual 
  

   egg 
  is 
  quite 
  small 
  and 
  is 
  a 
  little 
  more 
  than 
  twice 
  as 
  long 
  as 
  wide. 
  

   The 
  eggs 
  are 
  packed 
  in 
  the 
  mass 
  very 
  tightly. 
  A 
  longitudinal 
  section 
  

   of 
  an 
  entire 
  egg 
  mass 
  presents 
  a 
  honeycombed 
  arrangement. 
  (PL 
  

   XII, 
  fig. 
  1; 
  PL 
  XVI, 
  figs. 
  1, 
  3.) 
  

  

  THE 
  LARVA. 
  

  

  When 
  newly 
  hatched 
  the 
  larva 
  measures 
  about 
  1.5 
  mm. 
  in 
  length 
  

   and 
  is 
  pale 
  yellowish 
  green, 
  with 
  the 
  head 
  and 
  thoracic 
  shield 
  dark 
  

   brown 
  or 
  nearly 
  black. 
  At 
  this 
  time 
  the 
  thoracic 
  legs 
  are 
  nearly 
  

   black, 
  while 
  the 
  prolegs 
  are 
  of 
  the 
  same 
  general 
  color 
  as 
  the 
  body. 
  

   As 
  the 
  larva 
  develops 
  the 
  color 
  of 
  the 
  head, 
  thoracic 
  shield, 
  and 
  legs 
  

   gradually 
  changes 
  to 
  a 
  light 
  brown 
  and 
  the 
  body 
  takes 
  on 
  a 
  darker 
  

   shade 
  of 
  green. 
  Before 
  pupating 
  the 
  thoracic 
  shield 
  and 
  legs 
  of 
  the 
  

   larva 
  take 
  on 
  an 
  olive-green 
  tinge, 
  slightly 
  darker 
  than 
  the 
  rest 
  of 
  

   the 
  body, 
  which 
  is 
  now 
  a 
  light 
  green. 
  The 
  larva 
  is 
  sparingly 
  clothed 
  

   with 
  short 
  hairs, 
  which 
  arise 
  from 
  rather 
  inconspicuous 
  tubercles. 
  

   The 
  full-grown 
  larvse 
  measure 
  from 
  16 
  to 
  23 
  mm. 
  in 
  length 
  and 
  from 
  

   2 
  to 
  2.2 
  mm. 
  in 
  greatest 
  width. 
  The 
  average 
  size 
  for 
  10 
  larvae 
  was 
  

   found 
  to 
  be 
  20.3 
  by 
  2.04 
  mm. 
  (PL 
  XII, 
  fig. 
  2.) 
  

  

  