﻿peared 
  at 
  Los 
  Angeles, 
  California. 
  As 
  it 
  is 
  of 
  tropical 
  and 
  subtropical 
  

   distribution 
  mainly, 
  it 
  does 
  not 
  at 
  present 
  threaten 
  serious 
  injury 
  in 
  the 
  

   great 
  beet-growing 
  districts 
  of 
  the 
  country. 
  Its 
  injuries 
  to 
  cabbages 
  in 
  

   Georgia 
  were 
  apparently 
  increased 
  by 
  the 
  slow 
  growth 
  of 
  vegetation 
  due 
  

   to 
  a 
  rainy 
  and 
  backward 
  season. 
  The 
  egg 
  being 
  laid 
  in 
  the 
  heart 
  of 
  

   the 
  growing 
  plant 
  the 
  hatching 
  larvce 
  are 
  generally 
  carried 
  out 
  upon 
  the 
  

   unfolding 
  leaf, 
  but 
  on 
  the 
  occasion 
  referred 
  to 
  the 
  growth 
  was 
  compar- 
  

   atively 
  slow, 
  and 
  the 
  larvre 
  consequently 
  frequently 
  attacked 
  the 
  heart 
  

   of 
  the 
  plant 
  with 
  destructive 
  effect. 
  

  

  The 
  eggs 
  hatch 
  in 
  from 
  ten 
  to 
  fourteen 
  days. 
  The 
  narrowly 
  striped 
  

   full 
  grown 
  larva 
  is 
  half 
  to 
  two-thirds 
  of 
  an 
  inch 
  long. 
  It 
  spins 
  a 
  web 
  

   about 
  itself, 
  extending 
  this 
  with 
  its 
  own 
  growth. 
  In 
  breeding-cages 
  the 
  

   pupa 
  was 
  formed 
  in 
  a 
  rather 
  compact 
  white 
  silken 
  cocoon 
  about 
  three- 
  

   eighths 
  of 
  an 
  inch 
  long. 
  It 
  is 
  three-tenths 
  of 
  an 
  inch 
  in 
  length, 
  light 
  

   yellowish 
  brown, 
  with 
  a 
  pruinose 
  surface 
  bloom 
  and 
  a 
  median 
  dorsal 
  

   stripe. 
  The 
  adult 
  is 
  about 
  five-eighths 
  of 
  an 
  inch 
  across 
  the 
  expanded 
  

   wings, 
  grayish, 
  with 
  whitish 
  and 
  blackisli 
  lines 
  in 
  patches. 
  The 
  princi- 
  

   pal 
  injuries 
  seem 
  to 
  be 
  done 
  during 
  the 
  latter 
  part 
  of 
  the 
  year, 
  in 
  

   August, 
  September, 
  and 
  the 
  fore 
  part 
  of 
  October. 
  In 
  breeding-cages 
  

   moths 
  have 
  begun 
  to 
  emerge 
  November 
  21st 
  — 
  a 
  fact 
  which 
  would 
  seem 
  

   to 
  indicate 
  hibernation 
  as 
  an 
  adult. 
  The 
  number 
  of 
  generations 
  annually 
  

   is 
  unknown. 
  The 
  larva 
  is 
  parasitized 
  by 
  a 
  Tachina 
  fly 
  {^Exorista 
  piste 
  

   Walk.) 
  and 
  probably 
  by 
  an 
  ichneumon 
  {^Limncria 
  iibiaior 
  Cr.). 
  

  

  It 
  is 
  evident 
  that 
  this 
  species 
  can 
  be 
  easily 
  transported, 
  especially 
  

   on 
  cabbage, 
  either 
  in 
  egg, 
  larval, 
  or 
  pupal 
  stage, 
  and 
  it 
  is 
  practically 
  

   certain, 
  consequently, 
  to 
  extend 
  its 
  range 
  according 
  to 
  its 
  capacity 
  to 
  

   endure 
  our 
  climate. 
  As 
  it 
  is 
  a 
  southern 
  species 
  in 
  the 
  Old 
  World, 
  it 
  

   will 
  perhaps 
  not 
  become 
  general 
  in 
  the 
  United 
  States. 
  

  

  Leaves 
  riddled 
  by 
  small 
  holes 
  ustially 
  more 
  or 
  less 
  definitely 
  circular. 
  

   Many 
  small 
  hard-shelled 
  leaf-beetles 
  present. 
  

  

  THE 
  LEAF-BEETLES. 
  

   Chrysomelidcc. 
  

   (PL 
  IV., 
  Fig. 
  2; 
  Pis. 
  V.-VIII.; 
  PI. 
  IX., 
  Fig. 
  i.) 
  

   The 
  adults 
  of 
  several 
  of 
  the 
  sj)ecies 
  of 
  the 
  great 
  family 
  of 
  leaf- 
  

   beetles 
  feed 
  upon 
  beet 
  leaves 
  and 
  are 
  commonly 
  present 
  in 
  beet 
  fields 
  

   in 
  sufficient 
  number 
  to 
  make 
  them 
  a 
  prominent 
  feature 
  of 
  the 
  insect 
  life 
  

   of 
  the 
  crop. 
  Most 
  of 
  these 
  species 
  pass 
  the 
  larval 
  stage 
  on 
  the 
  roots 
  

   or 
  leaves 
  of 
  other 
  plants, 
  infesting 
  the 
  beet, 
  with 
  various 
  other 
  kinds 
  of 
  

   vegetation, 
  when 
  they 
  become 
  adult. 
  There 
  are 
  a 
  few 
  species, 
  however, 
  

   which 
  live 
  upon 
  the 
  beet 
  as 
  larvae 
  also, 
  and 
  one 
  of 
  these 
  at 
  least 
  is 
  a 
  

   beet 
  pest 
  of 
  the 
  first 
  importance. 
  

  

  