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  XXII 
  

  

  eggs. 
  Clinging 
  closely 
  to 
  the 
  leaf 
  with 
  their 
  heads 
  towards 
  its 
  base. 
  

   they 
  die. 
  their 
  distended 
  abdomens 
  appt^aring 
  like 
  a 
  little 
  bag 
  tilled 
  

   with 
  eggs. 
  The 
  outer 
  skin 
  of 
  the 
  abdomen 
  soon 
  perishes 
  and 
  disap- 
  

   pears, 
  leaving 
  the 
  mass 
  of 
  eggs 
  adhering 
  to 
  the 
  side 
  of 
  the 
  leaf, 
  but 
  

   completely 
  covered 
  over 
  and 
  protected 
  by 
  the 
  closed 
  wings 
  of 
  the 
  

   dead 
  fly. 
  I 
  have 
  met 
  with 
  the 
  dead 
  females 
  thus 
  adhering 
  to 
  the 
  

   leaves 
  the 
  first 
  of 
  July 
  and 
  have 
  noticed 
  the 
  live 
  insects 
  on 
  tlie 
  

   leaves 
  in 
  full 
  life 
  and 
  vigor 
  the 
  middle 
  of 
  May.'" 
  No 
  one 
  has 
  since 
  

   observed 
  the 
  eggs 
  in 
  the 
  position 
  noted 
  by 
  Dr. 
  Fitch. 
  

  

  In 
  this 
  description 
  the 
  venation 
  of 
  the 
  wings, 
  as 
  given 
  by 
  Dr. 
  

   Fitch 
  does 
  not 
  agree 
  with 
  later 
  descriptions, 
  but 
  is 
  exactly 
  such 
  a 
  

   description 
  as 
  would 
  be 
  given 
  when 
  the 
  wing 
  was 
  viewed 
  with 
  a 
  low 
  

   power 
  of 
  the 
  microscope. 
  

  

  1862. 
  Chermes 
  pinifol'ur 
  Fitch. 
  B. 
  J). 
  Walsh. 
  

  

  Oil 
  ihc 
  Genera 
  of 
  Aphidcf 
  Found 
  in 
  the 
  U. 
  S. 
  — 
  Species 
  listed 
  

   only. 
  

  

  lHf)b. 
  Coccus 
  pinicoi-ficis, 
  Fitch. 
  B. 
  D. 
  Walsh. 
  

  

  Froctical 
  Entouiologij, 
  Vol. 
  1. 
  p. 
  no. 
  — 
  In 
  this 
  publication 
  Mr. 
  

   Walsh 
  regards 
  the 
  apterous 
  female 
  as 
  the 
  larva 
  of 
  Astpidiofiis 
  

   pinifolid'. 
  

  

  1869. 
  Coccus 
  (.^) 
  puiicovlicis. 
  Sigxoket. 
  

  

  Essai 
  sur 
  les 
  Cochenilles. 
  p. 
  866. 
  — 
  Simply 
  catalogues 
  it. 
  and 
  refers 
  

   to 
  Fitch's 
  papers 
  on 
  the 
  sul)ject. 
  

  

  1H69. 
  Chermes 
  / 
  pinicorHcis. 
  Henry 
  Shim 
  ek. 
  

  

  Trans. 
  Am. 
  Ent. 
  Soc, 
  Vol. 
  2, 
  p. 
  383. 
  — 
  This 
  paper 
  by 
  Dr. 
  Shimer 
  

   gives 
  a 
  brief 
  account 
  of 
  the 
  habits 
  of 
  the 
  insect, 
  a 
  description 
  of 
  the 
  

   winged 
  form, 
  and 
  asserts 
  its 
  identity 
  with 
  Chermes 
  pinifolia' 
  Fitch; 
  

   enumerates 
  as 
  natural 
  enemies 
  Camuronotus 
  fraternns 
  Uhl., 
  "the 
  

   larva 
  of 
  an 
  unknown 
  species 
  of 
  Chri/.<topa 
  which 
  covers 
  its 
  back 
  with 
  

   the 
  wool 
  of 
  the 
  Chermes. 
  Chilocorus 
  hir}ilne}-n.-i 
  Muls.. 
  Scipnnus 
  

   terminains 
  Say, 
  Penlilia 
  ( 
  Smilia) 
  )ni.^ella 
  Zimm.. 
  many 
  larvte 
  of 
  

   unknown 
  species 
  of 
  S/jrphns 
  and 
  a 
  Sc/jninu.^ 
  larva 
  longer 
  than 
  fermi- 
  

   natiLS. 
  infested 
  by 
  a 
  chalcis 
  fly. 
  

  

  The 
  ^'Chr//sopa" 
  mentioned 
  by 
  Dr. 
  Shimer 
  is 
  doubtless 
  Hemo'ohius 
  

   allernans. 
  

  

  1H73. 
  Coccus 
  pinlco)-h'c{s, 
  Fitch. 
  J. 
  A. 
  Lixtxei;. 
  

  

  A 
  paper 
  in 
  the 
  Counlrij 
  (JenfloiKin. 
  Ainj. 
  21. 
  is}:], 
  I'ol. 
  :>s. 
  j). 
  ^:!'). 
  

   by 
  Prof. 
  Lintncr. 
  

  

  1878. 
  Herbert 
  OsBOKN. 
  

  

  In 
  t\w 
  Trans. 
  Iowa 
  Stcde 
  Ilorl. 
  Soc, 
  I'ol 
  /.V. 
  />. 
  400. 
  Prof. 
  Os- 
  

   boru 
  discusses 
  it, 
  (without 
  name) 
  somewhat 
  fully: 
  notices 
  its 
  occur- 
  

   rence 
  on 
  white, 
  Scotch, 
  and 
  Austrian 
  pines; 
  makes 
  a 
  study 
  of 
  its 
  

   stages; 
  description 
  of 
  eggs. 
  larva, 
  adult 
  male 
  and 
  foinaU': 
  discusses 
  

   its 
  zoological 
  ndations. 
  

  

  