﻿200 
  Thirtieth 
  Report 
  oh 
  the 
  State 
  Museum. 
  ~\$] 
  

  

  Mr. 
  Strecker, 
  to 
  whom 
  I 
  communicated 
  the 
  MS. 
  name 
  of 
  

   this 
  species, 
  together 
  with 
  its 
  distinctive 
  features 
  as 
  observed 
  

   by 
  me. 
  expresses, 
  in 
  letter, 
  his 
  opinion 
  that 
  it 
  may 
  prove 
  to 
  

   be 
  but 
  a 
  form 
  of 
  scitlscrijjfa. 
  inasmuch 
  as 
  some 
  of 
  his 
  ex- 
  

   amples 
  '• 
  show 
  no 
  thoracic 
  band 
  at 
  all. 
  not 
  even 
  traces 
  of 
  

   it, 
  and 
  again, 
  others 
  'four 
  examples 
  have 
  the 
  usual 
  

  

  black 
  marginal 
  spots 
  of 
  the 
  secondaries 
  very 
  distinct, 
  so 
  much 
  

   so 
  as 
  any 
  settiscripta 
  I 
  ever 
  saw 
  : 
  the 
  veins 
  on 
  secondaries 
  in 
  

   some 
  are 
  also 
  dark, 
  like 
  .sciti 
  script 
  a." 
  

  

  Should 
  this 
  species 
  be 
  shown 
  to 
  vary 
  to 
  the 
  above 
  extent, 
  it 
  

   would 
  be 
  an 
  anomaly 
  in 
  the 
  genus, 
  for 
  nothing 
  approaching 
  

   so 
  great 
  variation 
  has 
  come 
  under 
  my 
  observation 
  in 
  the 
  

   course 
  of 
  my 
  critical 
  study 
  of 
  the 
  several 
  species. 
  To 
  the 
  con- 
  

   trary. 
  I 
  have 
  found 
  the 
  species 
  to 
  be 
  remarkably 
  constant 
  in 
  

   their 
  ornamentation. 
  

  

  I 
  would 
  not 
  hesitate 
  to 
  refer 
  examples 
  so 
  differently 
  marked 
  

   as 
  indicated 
  by 
  Mr. 
  Strecker 
  to 
  distinct 
  species, 
  in 
  the 
  absence 
  

   of 
  sufficient 
  evidence 
  of 
  their 
  identity. 
  

  

  The 
  above 
  descriptions 
  are 
  published 
  at 
  the 
  present 
  time, 
  in 
  

   advance 
  of 
  an 
  extended 
  paper 
  on 
  the 
  species 
  of 
  Cerura 
  — 
  

   American 
  and 
  European 
  — 
  which, 
  as 
  is 
  known 
  to 
  many 
  of 
  my 
  

   correspondents, 
  was 
  commenced 
  some 
  time 
  ago. 
  It 
  has 
  been 
  

   delayed, 
  from 
  my 
  inability 
  to 
  obtain 
  a 
  few 
  species 
  which 
  it 
  

   seemed 
  desirable 
  to 
  embrace 
  in 
  it. 
  and 
  from 
  not 
  having 
  been 
  

   able 
  to 
  arrange 
  for 
  the 
  satisfactory 
  illustration 
  of 
  the 
  paper. 
  

  

  I 
  avail 
  myself 
  of 
  the 
  present 
  opportunity 
  to 
  express 
  my 
  

   obligations 
  to 
  my 
  friends 
  — 
  to 
  Messrs. 
  Bowles. 
  Caulheld. 
  

   Grote. 
  Hill. 
  Hoy. 
  Kuetzing, 
  von 
  Meske, 
  Pearson, 
  Riemann, 
  

   Riley, 
  Strecker 
  and 
  Tepper 
  — 
  who 
  have 
  freely 
  loaned 
  me 
  all 
  

   the 
  examples 
  contained 
  in 
  their 
  collections, 
  and 
  have 
  most 
  

   generously 
  permitted 
  me 
  to 
  retain 
  them 
  for 
  an 
  unusual 
  

   length 
  of 
  time. 
  

  

  