﻿196 
  Thietieth 
  Reeoet 
  ox 
  the 
  State 
  Museum. 
  [84] 
  

  

  Cerura 
  borealis 
  (Boisd). 
  

  

  This 
  is 
  quite 
  a 
  different 
  insect 
  from 
  the 
  preceding, 
  and 
  need 
  

   not 
  be 
  mistaken 
  for 
  it, 
  or 
  any 
  other 
  species. 
  It 
  is 
  figured 
  in 
  

   (Turner's 
  Animal 
  Kingdom, 
  London, 
  1836, 
  vol. 
  IV, 
  pi. 
  98, 
  fig. 
  

   5, 
  as 
  Dicranura 
  borealis 
  Bdv. 
  The 
  figure 
  leaves 
  no 
  doubt 
  of 
  

   the 
  species 
  intended. 
  On 
  the 
  right 
  wing 
  of 
  the 
  illustration, 
  

   the 
  five 
  inferior 
  nervular 
  spots 
  (see 
  description 
  below) 
  are 
  

   faithfully 
  depicted 
  in 
  proper 
  position 
  on 
  the 
  median 
  nervules 
  

   (the 
  two 
  superior 
  ones 
  not 
  shown). 
  On 
  the 
  left 
  wing 
  the 
  two 
  

   inner 
  sinuses 
  and 
  the 
  three 
  outer 
  of 
  the 
  mesial 
  band 
  are 
  cor- 
  

   rectly 
  represented 
  in 
  form, 
  size 
  and 
  position. 
  The 
  absence 
  of 
  

   the 
  two 
  costal 
  black 
  spots 
  between 
  the 
  bands, 
  and 
  of 
  some 
  of 
  

   the 
  extrabasilar 
  ones, 
  would 
  indicate 
  some 
  imperfection 
  in 
  

   the 
  example 
  figured. 
  It 
  is 
  also 
  well 
  figured 
  in 
  Smith 
  and 
  

   Abbot's 
  Lepi 
  diopter 
  ous 
  Insects 
  of 
  Georgia, 
  London, 
  1797, 
  p. 
  

   141, 
  pi. 
  71, 
  as 
  Phalcena 
  furcida 
  — 
  believed 
  by 
  Smith 
  to 
  be 
  

   identical 
  with 
  the 
  furcida, 
  of 
  Europe 
  ; 
  but 
  to 
  this 
  insect 
  it 
  

   bears 
  no 
  greater 
  resemblance 
  than 
  to 
  C. 
  occiderdalis. 
  

  

  It 
  is 
  characterized 
  by 
  its 
  white 
  head 
  and 
  collar, 
  thorax 
  in 
  front 
  

   marked 
  with 
  a 
  conspicuous 
  transverse 
  black 
  line, 
  abdominal 
  

   segments 
  broadly 
  banded 
  with 
  fuscous 
  dorsally. 
  Primaries 
  

   of 
  a 
  snow 
  white 
  ground 
  color, 
  a 
  basilar 
  black 
  dot, 
  followed 
  by 
  

   four 
  other 
  nervular 
  ones, 
  forming 
  an 
  angular 
  line 
  ; 
  a 
  broad, 
  

   centrally 
  constricted, 
  well-defined, 
  mesial 
  band, 
  of 
  about 
  the 
  

   same 
  width 
  on 
  the 
  two 
  margins 
  ; 
  between 
  this 
  and 
  the 
  sub- 
  

   terminal 
  band 
  are 
  two 
  distinct 
  costal 
  spots, 
  and 
  below 
  these 
  

   on 
  the 
  nervules, 
  seven 
  black 
  spots 
  arranged 
  in 
  an 
  oval, 
  as 
  

   follows: 
  the 
  two 
  inferior 
  ones 
  on 
  the 
  first 
  median 
  nervule 
  

   (vein 
  2). 
  the 
  two 
  medial 
  spots 
  of 
  the 
  exterior 
  four, 
  at 
  about 
  the 
  

   inner 
  third 
  of 
  the 
  second 
  and 
  third 
  median 
  nervules 
  — 
  veins 
  

   3 
  and 
  4; 
  of 
  the 
  two 
  medial 
  spots 
  of 
  the 
  interior 
  ones, 
  the 
  lower 
  

   is 
  at 
  or 
  just 
  before 
  the 
  bifurcation 
  of 
  veins 
  3 
  and 
  4, 
  and 
  the 
  

   upper 
  is 
  on 
  the 
  discal 
  cross- 
  vein; 
  the 
  superior 
  spot 
  of 
  the 
  oval 
  is 
  

   on 
  vein 
  5, 
  equidistant 
  from 
  the 
  two 
  superior 
  medial 
  spots 
  below 
  

   it. 
  The 
  subterminal 
  line 
  is 
  distinctly 
  marked, 
  and 
  followed 
  

   by 
  the 
  subterminal 
  band, 
  reduced 
  to 
  a 
  line 
  as 
  it 
  crosses 
  veins 
  

   3 
  and 
  4, 
  but 
  again 
  expanding 
  on 
  the 
  inner 
  margin. 
  

  

  Secondaries 
  with 
  a 
  well 
  marked 
  discal 
  spot, 
  and 
  with 
  a 
  broad 
  

   marginal 
  band; 
  the 
  latter 
  in 
  some 
  examples 
  is 
  obsolete. 
  

  

  Expanse 
  of 
  wings: 
  from 
  1.50 
  to 
  1.70 
  inch. 
  

  

  Habitat. 
  — 
  Xew 
  York, 
  Pennsylvania, 
  Virginia, 
  Georgia, 
  

   Missouri 
  (Aug. 
  26, 
  at 
  light, 
  Riley). 
  

  

  