﻿82 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  probable 
  that 
  in 
  this 
  case, 
  likewise, 
  the 
  epoch 
  of 
  fewest 
  spots 
  is 
  their 
  

   season 
  of 
  increase, 
  and 
  that 
  during 
  the 
  ensuing 
  years 
  a 
  tide 
  of 
  migration 
  

   sets 
  in 
  northward. 
  Thus 
  we 
  read 
  in 
  the 
  transactions 
  of 
  the 
  French 
  

   Entomological 
  Society 
  that 
  in 
  1834 
  the 
  south 
  wind 
  was 
  very 
  violent 
  at 
  

   Montpellier^^, 
  and 
  brought 
  Chcerocampa 
  Celerio 
  and 
  Deilephila 
  Lineataj 
  

   alias 
  Livornicay 
  in 
  great 
  numbers 
  from 
  Africa; 
  and 
  subsequently 
  the 
  

   first 
  of 
  these 
  moths, 
  with 
  Chceroca^npa 
  Nerii^ 
  which 
  became 
  common 
  in 
  

   1835, 
  occurred 
  on 
  the 
  continent 
  until 
  1839 
  or 
  thereabouts. 
  The 
  next 
  mi- 
  

   gration, 
  a 
  remarkable 
  one, 
  took 
  form 
  in 
  Germany 
  in 
  1842, 
  and 
  in 
  1846 
  

   the 
  rare 
  hawk 
  moths, 
  ConvolvuUj 
  Livornica, 
  Celerio, 
  and 
  Nerii^ 
  oviposited 
  

   over 
  the 
  whole 
  of 
  western 
  Europe, 
  Celerio 
  reaching 
  as 
  far 
  north 
  as 
  

   Stralsund. 
  After 
  this 
  date, 
  C. 
  Nerii 
  was 
  noticed 
  in 
  France 
  during 
  the 
  

   years 
  1856-'57, 
  and 
  at 
  the 
  same 
  time 
  it 
  was 
  likewise 
  found 
  in 
  England.^ 
  

   It 
  is 
  also 
  to 
  be 
  remarked 
  that 
  the 
  year 
  1874 
  ^^ 
  brought 
  suddenly 
  a 
  rare 
  

   satellite 
  of 
  the 
  hawk 
  moths, 
  Deiopeia 
  Pulchella^ 
  to 
  the 
  notice 
  of 
  Parisian 
  

   entomologists, 
  and 
  in 
  the 
  following 
  two 
  years 
  this 
  southern 
  and 
  eastern 
  

   insect 
  occurred 
  in 
  France 
  and 
  England. 
  

  

  Certain 
  periods 
  likewise 
  may 
  be 
  considered 
  to 
  have 
  brought 
  certain 
  

   lepidopterous 
  species 
  to 
  England. 
  Thus 
  1846 
  was 
  a 
  great 
  ConvolvulijesiVy 
  

   1870 
  a 
  great 
  Livornica 
  year, 
  and 
  1877 
  a 
  great 
  JEdusa 
  year. 
  Yet, 
  although 
  

   these 
  rare 
  visitants 
  duly 
  oviposited 
  and 
  often 
  bred 
  in 
  this 
  country, 
  a 
  

   glance 
  at 
  the 
  table 
  shows 
  that 
  they 
  were 
  virtually 
  eradicated 
  from 
  it 
  

   during 
  the 
  subsequent 
  unfavorable 
  years. 
  It 
  would 
  appear, 
  however, 
  

   that 
  a 
  temporary 
  colony 
  may 
  result 
  from 
  these 
  flights, 
  as 
  in 
  the 
  case 
  of 
  

   Choerocampa 
  N'erii, 
  which 
  propagated 
  in 
  a 
  garden 
  in 
  Berlin 
  between 
  the 
  

   years 
  1829 
  and 
  1832^^2 
  that 
  of 
  Deilephila 
  EiipTiorMce^ 
  which, 
  discovered 
  

   at 
  Braunton 
  Burrows, 
  near 
  Ilfracombe, 
  in 
  1806, 
  became 
  abundant 
  in 
  the 
  

   larva 
  state 
  in 
  that 
  part 
  of 
  Devonshire 
  about 
  1819-'20 
  j 
  ^=^ 
  and 
  that 
  of 
  Dei- 
  

   lephila 
  Galiij 
  which 
  bred 
  on 
  the 
  sand-hills 
  at 
  Deal, 
  between 
  1855 
  and 
  

   1862.2^ 
  

  

  With 
  regard 
  to 
  the 
  quarter 
  whence 
  the 
  arrivals 
  of 
  rare 
  butterflies 
  

   come 
  to 
  us, 
  and 
  their 
  distribution, 
  Mr. 
  Stainton 
  has 
  stated 
  in 
  the 
  Ento- 
  

   mologist's 
  Monthly 
  Magazine 
  (Yol. 
  VII, 
  p. 
  105"^) 
  ^^ 
  that 
  Fieris 
  DapUdiee 
  

  

  "Trans. 
  Soc. 
  Ent. 
  de 
  France, 
  Tom. 
  V, 
  p. 
  365. 
  Other 
  works 
  from 
  whence 
  the 
  following 
  abstract 
  is 
  

   drawn: 
  Stettin 
  Ent. 
  Zeit. 
  ; 
  Soc. 
  Ent. 
  de 
  BelKiqtie; 
  Wiener 
  Ent. 
  Monatschrift 
  ; 
  Nederlands. 
  Ent. 
  Ve- 
  

   reen., 
  Tijds. 
  voor 
  Ent. 
  ; 
  Ent. 
  Nachrichten. 
  There 
  is 
  a 
  want 
  of 
  field 
  record 
  on 
  the 
  continent, 
  and 
  I 
  am 
  

   afraid 
  the 
  prejudice 
  has 
  crept 
  into 
  this 
  country 
  of 
  late 
  years. 
  

  

  20 
  Convolvuli 
  everywhere 
  in 
  the 
  autumn 
  of 
  1858 
  and 
  1859. 
  I^ederlands. 
  Ent. 
  Vereen, 
  Tijds., 
  voor 
  Ent. 
  

  

  2J 
  Convolvuli 
  plentiful 
  at 
  Gratz, 
  Eugen, 
  Nassau, 
  and 
  Sachsen, 
  Aug. 
  and 
  Sept., 
  1875. 
  Ent. 
  Xachrichten. 
  

  

  22 
  (Stettin 
  Ent. 
  Zeitung, 
  viii, 
  S. 
  132.) 
  Herr 
  Bouch6's 
  notice 
  : 
  Ich 
  selbst 
  habe 
  sie 
  (Nerii) 
  in 
  den 
  Jahren 
  

   1829 
  bis 
  1832, 
  jahrlich 
  in 
  meinem 
  Garten 
  theilsalsRaupetheilsals 
  Schmetterling 
  gefangen. 
  . 
  . 
  . 
  Erisch 
  

   war 
  wohl 
  der 
  Erste 
  in 
  Deutschland, 
  der 
  ihn 
  beschrieb. 
  Er 
  berichtet 
  im 
  VIJ 
  Theile 
  p. 
  5 
  seiner 
  "Besch- 
  

   reibung 
  von 
  aUerley 
  Insekten 
  " 
  es 
  sei 
  der 
  Sommer 
  von 
  1727, 
  in 
  welchem 
  sich 
  dieee 
  Eaupenart 
  auf 
  den 
  

   meisten 
  Oleanderbaumen 
  gefunden 
  habe, 
  sehr 
  trocken 
  gewesen. 
  Eosel 
  in 
  3ten 
  Theile 
  seiner 
  "Insek- 
  

   tenbelustigungen" 
  notices 
  the 
  occurrence 
  of 
  Nerii 
  in 
  1740. 
  

  

  23Entomological 
  Magazine 
  for 
  1834. 
  Mr. 
  Eaddon 
  says: 
  No 
  Euphorbife 
  were 
  obtained 
  after 
  1819 
  until 
  

   the 
  3d 
  of 
  October, 
  1834, 
  when 
  a 
  single 
  chrysalis 
  was 
  found; 
  they 
  were 
  exceedingly 
  plentiful 
  in 
  1814 
  

   (100 
  larvae 
  on 
  a 
  piece 
  of 
  spurge) 
  and 
  1815 
  (20 
  pupae 
  obtained). 
  

  

  24 
  Entomologist's 
  Monthly 
  Magazine, 
  Vol. 
  H, 
  p. 
  5-8. 
  

  

  25 
  Also, 
  Trans. 
  Ent. 
  Soc. 
  London, 
  new 
  series, 
  Vol. 
  V, 
  p. 
  234. 
  

  

  