﻿THE 
  GKAPE-BERKY 
  MOTH. 
  

  

  41 
  

  

  there 
  was 
  a 
  period 
  of 
  very 
  low 
  temperature 
  from 
  October 
  14 
  to 
  18, 
  and 
  

   that 
  this 
  is 
  correlated 
  with 
  an 
  almost 
  complete 
  cessation 
  of 
  emergence 
  

   of 
  the 
  larvae. 
  There 
  is 
  no 
  doubt 
  that 
  the 
  abnormally 
  low 
  tempera- 
  

   ture 
  for 
  this 
  date 
  prolonged 
  the 
  emergence 
  period 
  of 
  the 
  larvae 
  for 
  

   the 
  season 
  of 
  1909. 
  

  

  MISCELLANEOUS 
  REARING 
  RECORDS 
  FOR 
  THE 
  SEASONS 
  OF 
  1907 
  AND 
  

  

  1908. 
  

  

  The 
  rearing 
  records 
  for 
  the 
  seasons 
  of 
  1907 
  and 
  1908 
  are 
  less 
  exten- 
  

   sive 
  and 
  not 
  so 
  complete 
  as 
  those 
  made 
  a 
  year 
  later, 
  but 
  they 
  agree 
  in 
  

   general 
  with 
  the 
  more 
  complete 
  records 
  of 
  1909. 
  Table 
  XVI 
  gives 
  

   the 
  emergence 
  record 
  of 
  24 
  moths 
  of 
  the 
  spring 
  brood 
  for 
  the 
  season 
  

   of 
  1907. 
  

  

  Table 
  XVI. 
  — 
  Time 
  of 
  emergence 
  of 
  moths 
  of 
  the 
  grape-berry 
  moth 
  in 
  the 
  spring 
  of 
  1907. 
  

  

  Date 
  of 
  

   emer- 
  

   gence. 
  

  

  Num- 
  

   ber 
  of 
  

   moths. 
  

  

  Date 
  of 
  

   emer- 
  

   gence. 
  

  

  Num- 
  

   ber 
  of 
  

   moths. 
  

  

  Date 
  of 
  

   emer- 
  

   gence. 
  

  

  Num- 
  

   ber 
  of 
  

   moths. 
  

  

  Date 
  of 
  

   emer- 
  

   gence. 
  

  

  Num- 
  

   ber 
  of 
  

   moths. 
  

  

  June 
  21 
  

   22 
  

   23 
  

   24 
  

  

  1 
  

   1 
  

   1 
  

   3 
  

  

  June 
  25 
  

   26 
  

  

  28 
  

   29 
  

  

  4 
  

   3 
  

   3 
  

   1 
  

  

  June 
  30 
  

  

  July 
  2 
  

  

  3 
  

  

  4 
  

  

  1 
  

  

  1 
  

   1 
  

  

  1 
  

  

  July 
  6 
  

   10 
  

  

  1 
  

  

  1 
  

   1 
  

  

  No 
  record 
  of 
  egg 
  deposition 
  by 
  the 
  spring 
  brood 
  of 
  moths 
  was 
  

   secured 
  for 
  the 
  season 
  of 
  1907, 
  nor 
  was 
  a 
  record 
  made 
  of 
  the 
  length 
  

   of 
  the 
  larval 
  stage 
  for 
  the 
  first 
  brood. 
  

  

  The 
  complete 
  record 
  of 
  two 
  pupae 
  of 
  the 
  first 
  brood 
  was 
  secured 
  dur- 
  

   ing 
  1907 
  which 
  covered 
  a 
  period 
  of 
  13 
  days 
  for 
  this 
  stage, 
  and 
  a 
  record 
  

   of 
  one 
  pupa 
  in 
  1908 
  which 
  covered 
  a 
  period 
  of 
  12 
  days. 
  These 
  records 
  

   are 
  shorter 
  than 
  the 
  average 
  length 
  of 
  this 
  stage 
  for 
  a 
  large 
  number 
  

   of 
  specimens 
  observed 
  in 
  1909 
  (see 
  Table 
  V, 
  which 
  shows 
  a 
  period 
  of 
  

   15.2 
  days). 
  

  

  An 
  emergence 
  record 
  of 
  695 
  moths 
  of 
  the 
  first 
  brood 
  was 
  secured 
  

   during 
  the 
  season 
  of 
  1907. 
  (See 
  Table 
  XVII.) 
  Unfortunately 
  some 
  

   of 
  the 
  earliest 
  maturing 
  larvae 
  had 
  escaped 
  from 
  the 
  infested 
  fruit 
  

   before 
  it 
  was 
  collected. 
  Hence 
  some 
  of 
  the 
  earliest 
  emerging 
  moths 
  

   are 
  not 
  shown, 
  since 
  the 
  first 
  emergence 
  in 
  this 
  record 
  is 
  dated 
  

   August 
  17. 
  

  

  Table 
  XVII. 
  — 
  Time 
  of 
  emergence 
  of 
  first-brood 
  mollis 
  of 
  the 
  grape-berry 
  moth. 
  North 
  East, 
  

  

  Pa., 
  1907. 
  

  

  Date 
  of 
  

   emer- 
  

   gence. 
  

  

  Num- 
  

   ber 
  of 
  

   moths. 
  

  

  Date 
  of 
  

   emer- 
  

   gence. 
  

  

  Num- 
  

   ber 
  of 
  

   moths. 
  

  

  Date 
  of 
  

   emer- 
  

   gence. 
  

  

  Num- 
  

   ber 
  of 
  

   moths. 
  

  

  Date 
  of 
  

  

  emer- 
  

   gence. 
  

  

  Num- 
  

   ber 
  of 
  

   moths. 
  

  

  Aug. 
  17 
  

   19 
  

   20 
  

   21 
  

   23 
  

   24 
  

  

  56 
  

   5 
  

   29 
  

   70 
  

   34 
  

   57 
  

  

  Aug. 
  26 
  

   27 
  

   28 
  

   29 
  

   30 
  

   31 
  

  

  106 
  

  

  33 
  

   36 
  

   60 
  

   36 
  

   28 
  

  

  Sept. 
  1 
  

   2 
  

   3 
  

   4 
  

   5 
  

  

  22 
  

   13 
  

  

  7 
  

   11 
  

   22 
  

  

  Sept. 
  9 
  

   11 
  

   14 
  

  

  Total 
  . 
  

  

  39 
  

   19 
  

   3 
  

  

  606 
  

  

  