﻿300 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  for 
  mis 
  Gmel.) 
  ; 
  Noxious, 
  beneficial 
  and 
  other 
  insects 
  of 
  New 
  York 
  

   state, 
  ist 
  and 
  2d 
  rep'ts. 
  1856. 
  p. 
  31-38. 
  

  

  Walsh, 
  B. 
  D. 
  111. 
  state 
  hortic. 
  soc. 
  Trans. 
  1868. 
  Separate 
  as 
  

   report 
  of 
  acting 
  state 
  entomologist, 
  p. 
  34-53 
  (general 
  account, 
  as 
  

   Aspidiotus 
  conchiformis). 
  

  

  Le 
  Baron, 
  William. 
  Chalcideous 
  parasite 
  of 
  the 
  appletree 
  bark 
  

   louse. 
  Am. 
  ent. 
  and 
  bot. 
  1870. 
  2:360-62 
  (parasites, 
  description 
  and 
  

   habits 
  of 
  Aphelin 
  us 
  mytilaspidis). 
  

  

  Osborn, 
  Herbert. 
  Entomological 
  notes 
  for 
  the 
  year 
  1882. 
  la. 
  state 
  

   hortic. 
  soc. 
  Trans. 
  1882. 
  1883. 
  p. 
  212-13 
  (brief 
  notice). 
  

  

  Riley, 
  C. 
  V. 
  Insects 
  of 
  Missouri. 
  5th 
  rep't. 
  1873. 
  p. 
  73-96 
  (gen- 
  

   eral 
  account, 
  described 
  as 
  Mytilaspis 
  pomicorticis). 
  

  

  Comstock, 
  J. 
  H. 
  U. 
  S.dep'tagric. 
  Rep't 
  of 
  ent. 
  1880. 
  p. 
  325-26 
  

   (synonymy, 
  characters, 
  life 
  history). 
  

  

  Lintner, 
  J. 
  A. 
  Injurious 
  and 
  other 
  insects 
  of 
  New 
  York. 
  4th 
  

   rep't. 
  1888. 
  p. 
  114-20 
  (general 
  account). 
  

  

  Howard, 
  L. 
  O. 
  Some 
  scale 
  insects 
  of 
  the 
  orchard. 
  U. 
  S. 
  dep't 
  agric. 
  

   Ye'^rbook. 
  1894. 
  p. 
  254-59 
  (general 
  account). 
  

  

  Lowe, 
  V. 
  H. 
  Inspection 
  of 
  nurseries 
  and 
  treatment 
  of 
  infested 
  

   nursery 
  stock. 
  N. 
  Y. 
  agric. 
  expt. 
  sta. 
  Bui. 
  136. 
  1897. 
  p. 
  576-82 
  

   (general 
  account). 
  

  

  Lochhead, 
  William. 
  San 
  Jose 
  and 
  other 
  scale 
  insects. 
  Ont. 
  dep't 
  

   agric. 
  Toronto. 
  1900. 
  p. 
  40-41 
  (brief 
  account). 
  

  

  Scurfy 
  bark 
  louse 
  

  

  Chionaspis 
  furfura 
  Fitch 
  

  

  PLATE 
  2 
  

  

  This 
  common 
  and 
  destructive 
  species 
  is 
  not 
  an 
  imported 
  insect, 
  like 
  

   the 
  preceding 
  form, 
  but 
  the 
  two 
  occupy 
  in 
  New 
  York 
  state 
  nearly 
  the 
  

   same 
  rank 
  as 
  pests 
  of 
  considerable 
  economic 
  importance. 
  The 
  scurfy 
  

   bark 
  louse 
  frequently 
  appears 
  in 
  large 
  numbers, 
  specially 
  on 
  recently 
  set 
  

   fruit 
  trees, 
  which 
  occasionally 
  become 
  so 
  covered 
  with 
  the 
  pest 
  as 
  to 
  

   look 
  at 
  a 
  little 
  distancfe 
  as 
  if 
  they 
  had 
  been 
  whitewashed. 
  Closer 
  inspec- 
  

   tion 
  shows 
  the 
  infested 
  trees 
  to 
  be 
  nearly 
  covered 
  with 
  dirty 
  white, 
  scurf- 
  

   like 
  patches, 
  and 
  it 
  is 
  from 
  this 
  that 
  the 
  popular 
  name 
  of 
  the 
  insect 
  has 
  

   been 
  derived. 
  

  

  