﻿VIII 
  

  

  As 
  stated 
  nl)<)vt\ 
  the 
  evidence 
  that 
  the 
  Leucopis 
  preys 
  upon 
  the 
  Oher- 
  

   nics 
  is 
  circumstantial. 
  The 
  larvje 
  are 
  found 
  under 
  the 
  "wool," 
  being 
  

   very 
  seldom 
  seen 
  without 
  removing 
  the 
  latter. 
  This 
  may 
  be 
  done 
  

   with 
  a 
  penknife, 
  and 
  at 
  the 
  times 
  of 
  the 
  year 
  hereafter 
  given* 
  a 
  

   careful 
  search 
  will 
  almost 
  certainly 
  reveal 
  several 
  of 
  these 
  minute 
  

   maggots, 
  of 
  a 
  bright 
  red 
  color, 
  so 
  small 
  that 
  it 
  is 
  necessary 
  to 
  mag- 
  

   nify 
  them 
  to 
  make 
  observations 
  at 
  all 
  satisfactory. 
  They 
  have 
  little 
  

   power 
  of 
  locomotion 
  and 
  usually 
  die 
  soon 
  after 
  being 
  removed 
  from 
  

   the 
  "wool."" 
  The 
  puparium 
  is 
  found 
  in 
  most 
  cases 
  on 
  the 
  upper 
  sur- 
  

   face 
  of 
  the 
  ••wool," 
  is 
  light 
  red 
  at 
  first, 
  passing 
  through 
  dark 
  red 
  to 
  

   dusky, 
  and 
  becoming 
  grayish 
  when 
  the 
  fly 
  emerges. 
  

  

  The 
  adult 
  ladybirds 
  are 
  so 
  well 
  known 
  to 
  all 
  as 
  to 
  need 
  no 
  descrip- 
  

   tion 
  further 
  than 
  to 
  give 
  the 
  distinguishing 
  marks 
  of 
  the 
  two 
  species 
  

   named 
  above. 
  These 
  descriptions 
  are 
  adapted 
  from 
  the 
  Sixth 
  Report 
  

   of 
  the 
  State 
  Entomologist 
  of 
  Illinois, 
  by 
  Dr. 
  Cyrus 
  Thomas, 
  in 
  which 
  

   Mcf/iUd 
  nuiciikita 
  is 
  characterized 
  as 
  follows: 
  

  

  Body 
  somewhat 
  elongated, 
  thorax 
  much 
  narrower 
  than 
  wing 
  cases, 
  

   ground 
  color 
  ])ink 
  or 
  reddish 
  yellow, 
  two 
  black 
  spots 
  on 
  the 
  thorax 
  

   and 
  ten 
  on 
  the 
  wing 
  cases, 
  four 
  on 
  each 
  case 
  and 
  two 
  on 
  the 
  suture; 
  

   length 
  one 
  fourth 
  to 
  three 
  tenths 
  of 
  an 
  inch, 
  

  

  Cliilocorns 
  hii-tili)erns 
  is 
  somewhat 
  smaller, 
  about 
  one-fifth 
  of 
  an 
  

   inch 
  in 
  length, 
  almost 
  perfectly 
  hemispherical 
  in 
  form, 
  of 
  a 
  deep 
  

   polished 
  black 
  color, 
  with 
  a 
  single 
  blood-red 
  spot 
  on 
  each 
  wing 
  cover. 
  

  

  The 
  larv;e 
  are 
  not 
  so 
  likely 
  to 
  be 
  recognized 
  by 
  those 
  interested 
  as 
  

   are 
  the 
  adults. 
  "'They 
  are 
  rather 
  short 
  and 
  somewhat 
  thickened 
  

   grubs, 
  with 
  numerous 
  prickles 
  or 
  spines, 
  not 
  in 
  a 
  single 
  row 
  along 
  

   the 
  sides 
  but 
  in 
  several 
  rows. 
  They 
  are 
  sometimes 
  gaily 
  colored, 
  

   but 
  usually 
  rather 
  dull.'" 
  

  

  Tliere 
  are 
  other 
  insects 
  which 
  have 
  been 
  ascertained 
  or 
  suspected 
  

   by 
  other 
  observers 
  to 
  attack 
  the 
  Cliermes, 
  which 
  have 
  not 
  been 
  cer- 
  

   tainly 
  noticed 
  in 
  the 
  University 
  grove. 
  Professor 
  Osborn 
  observed 
  a 
  

   mite 
  belonging 
  to 
  the 
  genus 
  Oribates 
  which 
  was 
  probably 
  feeding 
  on 
  

   the 
  Cliernics, 
  describing 
  it 
  as 
  "jet 
  black, 
  hard 
  and 
  shiny, 
  and 
  almost 
  

   globular 
  in 
  form:" 
  and 
  he 
  thinks 
  there 
  is 
  a 
  strong 
  probability 
  that 
  

   the 
  mite 
  .l.s'cc/r//.s' 
  7/?«/n.s 
  (a 
  natural 
  enemy 
  of 
  the 
  oyster-shell 
  bark 
  

   louse 
  of 
  the 
  apple), 
  which 
  he 
  placed 
  upon 
  a 
  pine 
  began 
  to 
  feed 
  

   upon 
  the 
  Clicniics. 
  Dr. 
  Shinier 
  names 
  in 
  this 
  connection 
  Scym- 
  

   niis 
  frvDiincifiis 
  Say; 
  an 
  unknown 
  species 
  oi 
  Scymnus, 
  the 
  latter 
  para- 
  

   sitized 
  by 
  a 
  chalcid 
  tiy 
  which 
  he 
  named 
  Eutelus? 
  scyrmiCBj 
  and 
  Smi- 
  

   Ji(( 
  )iiis('ll<i 
  Zinim. 
  Professor 
  C. 
  V. 
  Riley 
  refers 
  {5th 
  Annual 
  Rep., 
  

   p. 
  1(X)) 
  to 
  "'the 
  larva^ 
  of 
  certain 
  small 
  ladybirds" 
  as 
  attacking 
  the 
  

   Chennef!, 
  and 
  on 
  page 
  101 
  more 
  definitely 
  mentions 
  Coccmella 
  picta 
  

   Rand. 
  Dr. 
  Shimer 
  also 
  mentions 
  Camai'onotus 
  fraternus 
  Uhl.— 
  a 
  

   plant-bug 
  which 
  in 
  the 
  larval 
  state 
  "resembles 
  a 
  brown 
  ant" 
  and 
  is 
  

   equal 
  to 
  the 
  ant 
  in 
  activity 
  — 
  as 
  doing 
  its 
  share 
  toward 
  the 
  destruc- 
  

   tion 
  of 
  the 
  Chcrnu's. 
  

  

  *See 
  tables, 
  pp. 
  x. 
  xi. 
  

  

  