﻿242 
  Thirtieth 
  Report 
  on 
  the 
  State 
  Museum. 
  [130] 
  

  

  XXVII. 
  ON 
  SOME 
  SPECIES 
  OF 
  COSSUS. 
  

  

  Cossus 
  reticulatus 
  n. 
  sp. 
  

  

  Allied 
  to 
  C.robinicB 
  in 
  shape 
  of 
  wings 
  and 
  markings, 
  having 
  

   the 
  stronger 
  scales 
  and 
  reticulated 
  ornamentation 
  of 
  that 
  

   species, 
  in 
  which 
  it 
  diners 
  from 
  the 
  minute 
  and 
  sparse 
  scales 
  

   and 
  transverse 
  lines 
  of 
  C. 
  quereiperda 
  and 
  C. 
  Center 
  ensis. 
  

  

  Primaries 
  reticulated 
  with 
  black 
  on 
  a 
  pale 
  ash 
  ground, 
  the 
  

   wings 
  lighter 
  than 
  n 
  C. 
  robinice, 
  from 
  the 
  absence 
  of 
  the 
  con- 
  

   spicuous 
  intranervular 
  black 
  spots 
  and 
  streaks 
  which 
  charac- 
  

   terise 
  that 
  species, 
  and 
  are 
  well 
  represented 
  in 
  fig. 
  205, 
  p. 
  413, 
  

   of 
  Harris' 
  Insects 
  Injurious 
  to 
  Vegetation. 
  In 
  this* 
  species, 
  only 
  

   between 
  the 
  internal, 
  submedian 
  and 
  1st 
  median 
  nervule 
  

   (veins 
  la, 
  lb, 
  and 
  2), 
  at 
  the 
  outer 
  third 
  of 
  the 
  wing, 
  do 
  the 
  

   reticulations 
  coalesce 
  so 
  as 
  almost 
  to 
  form 
  spots. 
  In 
  the 
  ter- 
  

   minal 
  and 
  subterminal 
  portions 
  of 
  the 
  wing, 
  the 
  small 
  ash 
  

   spots 
  (sometimes 
  ocellated 
  with 
  a 
  black 
  dot 
  or 
  line) 
  for 
  the 
  

   greater 
  part 
  rest 
  upon 
  the 
  veins 
  ; 
  between 
  2 
  and 
  5, 
  there 
  are 
  

   other 
  spots 
  intermediate 
  to 
  these 
  venular 
  ones 
  — 
  elsewhere, 
  

   with 
  a 
  few 
  exceptions, 
  the 
  spots 
  are 
  venular, 
  forming 
  two 
  in- 
  

   tranervular 
  rows. 
  The 
  costal 
  region 
  is 
  pale 
  ash, 
  traversed 
  by 
  

   black 
  lines 
  rather 
  than 
  reticulated. 
  The 
  median 
  portion 
  of 
  

   the 
  wing 
  is 
  imperfectly 
  reticulated. 
  The 
  terminal 
  margin, 
  

   and 
  the 
  unicolorous 
  fringe 
  is 
  conspicuously 
  marked 
  with 
  a 
  

   black 
  spot 
  on 
  each 
  vein. 
  

  

  Secondaries 
  thinly 
  clothed 
  with 
  fuscous 
  hairs, 
  permitting 
  

   the 
  reticulations 
  of 
  the 
  lower 
  surface 
  to 
  be 
  seen 
  in 
  transpar- 
  

   ency, 
  except 
  between 
  the 
  margin 
  and 
  costal 
  nerve, 
  where 
  it 
  is 
  

   scaled 
  in 
  pale 
  ash 
  as 
  the 
  primaries. 
  Terminal 
  margin 
  and 
  the 
  

   pale 
  fringe, 
  black 
  spotted 
  as 
  the 
  primaries. 
  

  

  Beneath 
  : 
  primaries 
  much 
  as 
  above, 
  with 
  these 
  differences 
  : 
  

   There 
  is 
  an 
  accumulation 
  of 
  blackish 
  elongated 
  scales 
  in 
  the 
  

   basilar 
  region, 
  in 
  the 
  interspaces 
  of 
  the 
  internal, 
  submedian 
  

   and 
  median 
  nerves 
  ; 
  also 
  between 
  veins 
  2 
  and 
  3 
  at 
  their 
  origin, 
  

  

  