﻿246 
  Thirtieth 
  Report 
  on 
  the 
  State 
  Museum. 
  []34] 
  

  

  " 
  Cossus 
  plagiatus 
  Walk. 
  Rare, 
  July. 
  

  

  " 
  In 
  1857, 
  Mr. 
  T. 
  R. 
  Peale, 
  of 
  the 
  U. 
  S. 
  Patent 
  Office, 
  named 
  

   this 
  species 
  Cossus 
  McMurtrici 
  [sic], 
  and 
  informed 
  me 
  that 
  

   it 
  was 
  common 
  sonth 
  of 
  Pennsylvania, 
  but 
  rare 
  in 
  the 
  Middle 
  

   States." 
  

  

  Cossus 
  crepera 
  Harris. 
  

  

  This 
  name 
  appears 
  in 
  Dr. 
  Harris' 
  Catalogues 
  of 
  Animals 
  

   and 
  Plants 
  of 
  Massachusetts, 
  p. 
  72. 
  1835, 
  but 
  is 
  not 
  con- 
  

   tinued 
  in 
  his 
  subsequent 
  reports. 
  In 
  1839, 
  Doubleday, 
  having 
  

   suspected 
  its 
  true 
  relationship, 
  writes 
  to 
  Dr. 
  Harris 
  of 
  this 
  spe- 
  

   cies 
  : 
  " 
  There 
  is 
  a 
  true 
  Cossus 
  with 
  mottled 
  upper 
  wings, 
  

   and 
  yellow 
  under 
  wings, 
  black 
  at 
  the 
  base 
  and 
  inner 
  margin, 
  

   — 
  Robinice 
  6 
  ? 
  " 
  It 
  is 
  decribed 
  by 
  Dr. 
  Packard, 
  loc. 
  cit., 
  p. 
  388, 
  

   as 
  Xyleutes 
  crepera, 
  and 
  catalogued 
  by 
  G-rote 
  in 
  his 
  List 
  above 
  

   cited, 
  as 
  an 
  unrecognized 
  gspecies, 
  under 
  the 
  new 
  generic 
  name 
  

   proposed 
  by 
  him 
  of 
  Xystus. 
  It 
  is 
  now 
  known 
  to 
  be 
  but 
  the 
  

   $> 
  form 
  of 
  C. 
  robiniai, 
  from 
  the 
  ? 
  of 
  which 
  it 
  differs 
  so 
  greatly 
  

   in 
  the 
  angulated 
  form 
  of 
  its 
  posterior 
  wings 
  and 
  their 
  yellow 
  

   color, 
  as 
  to 
  have 
  been 
  mistaken 
  for 
  another 
  species. 
  

  

  Cossus 
  querciperda 
  Fitch. 
  

  

  The 
  species 
  described 
  under 
  this 
  name 
  by 
  Dr. 
  Packard, 
  loc. 
  

   cit., 
  p. 
  389, 
  is 
  not 
  the 
  one 
  so 
  named 
  and 
  briefly 
  described 
  by 
  

   Dr. 
  Fitch,* 
  but 
  some 
  other 
  form 
  — 
  possibly 
  C. 
  Center 
  ensis.\ 
  

   The 
  types 
  are 
  the 
  only 
  pair, 
  so 
  far 
  as 
  known, 
  in 
  existence, 
  and 
  

   are 
  in 
  my 
  Collection. 
  A 
  male 
  and 
  female 
  were 
  taken 
  in 
  copu- 
  

   lation, 
  June 
  27,1857, 
  at 
  Schoharie, 
  on 
  the 
  trunk 
  of 
  a 
  young 
  black 
  

   oak 
  (Quercus 
  tinctoria), 
  four 
  inches 
  in 
  diameter. 
  A 
  second 
  

   male 
  was 
  taken 
  at 
  the 
  time, 
  from 
  the 
  same 
  tree, 
  a 
  short 
  dis- 
  

   tance 
  from 
  the 
  attached 
  pair. 
  One 
  of 
  these, 
  together 
  with 
  the 
  

   female, 
  it 
  is 
  believed, 
  were 
  subsequently 
  given 
  to 
  Mr. 
  J. 
  W. 
  

   "Weidemeyer, 
  of 
  New 
  York, 
  with 
  other 
  duplicates 
  from 
  my 
  boxes, 
  

   without 
  statement 
  of 
  their 
  rarity, 
  which 
  at 
  the 
  time 
  was 
  not 
  

   known. 
  As 
  Mr. 
  Weidemeyer' 
  s 
  Collection 
  is 
  no 
  longer 
  in 
  his 
  

   hands, 
  the 
  examples 
  have 
  probably 
  been 
  destroyed. 
  

  

  In 
  March 
  following 
  the 
  capture 
  of 
  the 
  above 
  examples, 
  two 
  

   Cossus 
  larvae 
  were 
  found 
  in 
  burrows 
  in 
  some 
  pieces 
  of 
  black 
  

  

  * 
  Trans. 
  N. 
  T. 
  State 
  Agricul. 
  Soc, 
  vol. 
  xviii, 
  p. 
  790. 
  1859. 
  Fifth 
  Report 
  of 
  the 
  

   Insects 
  of 
  New 
  York, 
  p. 
  10 
  (section 
  294 
  of 
  the 
  volume 
  of 
  the 
  Third, 
  Fourth 
  and 
  

   Fifth 
  Reports). 
  

  

  f 
  Canadian 
  Entomologist, 
  vol. 
  ix, 
  p. 
  129. 
  1877. 
  

  

  