﻿EEPOET 
  UNITED 
  STATES 
  GEOLOGICAL 
  SURVEY. 
  

  

  her 
  eggs 
  in 
  patches 
  from 
  time 
  to 
  time, 
  covering 
  a 
  period 
  of 
  about 
  forty 
  

   days; 
  and 
  also 
  from 
  the 
  fact 
  that 
  among, 
  those 
  larvae, 
  which 
  all 
  hatch 
  

   out 
  in 
  one 
  day, 
  some 
  will 
  develop 
  and 
  become 
  beetles 
  in 
  a 
  week 
  and 
  

   even 
  ten 
  days 
  earlier 
  than 
  others. 
  Thus 
  it 
  may 
  be 
  that 
  some 
  of 
  the 
  late 
  

   individuals 
  of 
  the 
  third 
  brood 
  pass 
  the 
  winter 
  in 
  the, 
  pupa 
  state,. 
  though 
  

   the 
  normal 
  habit 
  is 
  to 
  transform 
  to 
  beetles. 
  Each 
  female 
  is 
  capable 
  of 
  

   depositing 
  upward 
  of 
  a 
  thousand 
  eggs 
  before 
  she 
  becomes 
  barren, 
  and 
  

   in 
  from 
  thirty 
  to 
  forty 
  days 
  from 
  the 
  time 
  they 
  were 
  deposited 
  they 
  will 
  

   have 
  produced 
  perfect 
  beetles. 
  These 
  beetles 
  are 
  again 
  capable 
  of 
  de- 
  

  

  positing 
  eggs 
  in 
  about 
  two 
  weeks 
  after 
  issuing 
  from 
  the 
  ground, 
  and 
  

   thus 
  in 
  about 
  fifty 
  days 
  after 
  the 
  egg 
  is 
  laid 
  the 
  offspring 
  begins 
  to 
  

   propagate. 
  The 
  pupa 
  of 
  the 
  Colorado 
  potato-beetle 
  is 
  represented 
  at 
  

   Fig. 
  — 
  . 
  It 
  is 
  formed 
  in 
  a 
  little 
  cavity 
  which 
  the 
  larva 
  had 
  made 
  per- 
  

   fectly 
  smooth 
  and 
  hard, 
  and 
  it 
  is 
  of 
  the 
  same 
  color 
  as 
  the 
  larva. 
  The 
  

   beetle 
  on 
  first 
  emerging 
  from 
  it 
  is 
  quite 
  pale 
  and 
  soft, 
  without 
  any 
  mark- 
  

   ings 
  whatever." 
  

  

  