﻿PACKARD] 
  PHRYGANIDEA 
  CALIFORNICA. 
  809 
  

  

  Mr. 
  Behrens, 
  of 
  San 
  Francisco, 
  writes 
  me 
  "that 
  three 
  generations 
  of 
  

   the 
  Pliryganidea 
  appear 
  in 
  a 
  year. 
  "In 
  1875 
  it, 
  with 
  the 
  larva 
  of 
  the 
  

   Gastropacha 
  californica, 
  ate 
  our 
  evergreen 
  oaljs 
  to 
  broomsticks. 
  You 
  

   could 
  hear 
  the 
  caterpillars 
  eat 
  and 
  their 
  manure 
  drop, 
  the 
  latter 
  cover- 
  

   ing 
  everything 
  -, 
  it 
  could 
  be 
  swept 
  together 
  by 
  the 
  bushelful. 
  In 
  the 
  

   wake 
  of 
  both 
  followed 
  ichneumon 
  parasites." 
  

  

  