﻿102 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  But 
  one 
  well-attested 
  case 
  of 
  locusts 
  or 
  grasshoppers 
  being 
  driven 
  into 
  

   the 
  waters 
  of 
  a 
  gulf 
  or 
  lake 
  in 
  this 
  country, 
  except 
  instances 
  where 
  

   swarms 
  have 
  fallen 
  into 
  Salt 
  Lake, 
  is 
  known. 
  This 
  occurred 
  in 
  August 
  

   of 
  1879. 
  A 
  vast 
  number 
  of 
  C. 
  femur 
  rubrum 
  were 
  observed 
  floating 
  in 
  

   Lake 
  Michigan 
  , 
  between 
  Eacine 
  and 
  Waukegan. 
  So 
  numerous 
  were 
  they 
  

   that 
  myriads 
  were 
  cast 
  ashore 
  by 
  the 
  waves 
  in 
  winrows 
  along 
  the 
  beach. 
  

   A 
  hundred 
  specimens 
  of 
  these, 
  collected 
  by 
  the 
  well-known 
  naturalist 
  

   Dr. 
  Hoy, 
  and 
  sent 
  to 
  Mr. 
  Thomas, 
  were 
  all 
  of 
  the 
  species 
  named. 
  These 
  

   were 
  cast 
  into 
  the 
  lake 
  by 
  the 
  severe 
  wind- 
  storm 
  of 
  the 
  day 
  preceding 
  

   that 
  on 
  which 
  they 
  were 
  observed. 
  

  

  Tile 
  writer 
  of 
  this 
  chapter, 
  after 
  a 
  careful 
  examination 
  of 
  all 
  the 
  ac- 
  

   counts 
  he 
  could 
  find 
  of 
  locust 
  swarms 
  actually 
  observed 
  falling 
  into 
  the 
  sea, 
  

   is 
  led 
  to 
  the 
  conclusion 
  that 
  as 
  a 
  very 
  general, 
  if 
  not 
  an 
  almost 
  universal 
  

   rule, 
  they 
  are 
  driven 
  against 
  their 
  will 
  by 
  severe 
  wind. 
  The 
  chief 
  ex- 
  

   ceptions, 
  if 
  there 
  are 
  any, 
  appear 
  to 
  be 
  where 
  they 
  attempt 
  to 
  cross 
  over 
  

   large 
  bodies 
  of 
  water, 
  as 
  to 
  the 
  Canary 
  Islands, 
  from 
  the 
  African 
  shore. 
  

   In 
  such 
  cases 
  their 
  coming 
  down 
  may 
  be 
  accounted 
  for 
  in 
  several 
  ways 
  

   consistent 
  with 
  what 
  we 
  know 
  of 
  the 
  laws 
  governing 
  their 
  flights, 
  with- 
  

   out 
  resorting 
  to 
  the 
  hypothesis 
  of 
  the 
  abnormal 
  propensity 
  heretofore 
  

   mentioned. 
  It 
  may 
  be 
  on 
  account 
  of 
  the 
  difference 
  in 
  the 
  temperature 
  

   and 
  humidity 
  of 
  the 
  atmosphere 
  already 
  suggested. 
  It 
  may 
  be 
  occa- 
  

   sioned 
  by 
  meeting 
  an 
  adverse 
  current 
  of 
  air, 
  or 
  that 
  the 
  current 
  on 
  which 
  

   they 
  are 
  borne 
  is 
  fading 
  out. 
  

  

  Kirby 
  and 
  Spence 
  record 
  an 
  example 
  of 
  the 
  great 
  flying 
  power 
  of 
  the 
  

   locust. 
  The 
  ship 
  Georgia, 
  which 
  sailed 
  from 
  Lisbon 
  to 
  Havana 
  with 
  a 
  

   light 
  wind 
  from 
  the 
  southeast, 
  found 
  itself 
  on 
  the 
  21st 
  of 
  November, 
  1811, 
  

   at 
  a 
  distance 
  of 
  200 
  English 
  miles 
  from 
  the 
  Canarian 
  Islands, 
  the 
  near- 
  

   est 
  land 
  ; 
  suddenly 
  there 
  came 
  on 
  a 
  calm, 
  a 
  light 
  breeze 
  rose 
  from 
  the 
  

   northwest, 
  and 
  at 
  the 
  same 
  time 
  there 
  fell 
  from 
  the 
  clouds 
  a 
  countless 
  

   multitude 
  of 
  great 
  locusts, 
  so 
  that 
  they 
  covered 
  the 
  deck, 
  the 
  masts, 
  and 
  

   every 
  part 
  of 
  the 
  ship 
  on 
  which 
  they 
  could 
  alight. 
  They 
  appeared 
  not 
  

   in 
  the 
  least 
  tired, 
  but 
  sprang, 
  on 
  the 
  contrary, 
  quickly 
  up 
  when 
  it 
  was 
  

   sought 
  to 
  catch 
  them, 
  and 
  tried 
  to 
  escape. 
  The 
  calm 
  or 
  a 
  very 
  light 
  

   breeze 
  lasted 
  a 
  full 
  hour, 
  and 
  during 
  this 
  time 
  a 
  shower 
  continued 
  fall- 
  

   ing 
  upon 
  and 
  around 
  the 
  vessel. 
  204 
  Otto 
  von 
  Kotzebue 
  observes, 
  in 
  his 
  

   Voyage 
  round 
  the 
  World, 
  that 
  the 
  course 
  from 
  Plymouth 
  to 
  Teneriffe 
  hav- 
  

   ing 
  been 
  very 
  long, 
  protracted 
  by 
  many 
  calms, 
  only 
  one 
  noteworthy 
  cir- 
  

   cumstance 
  struck 
  him, 
  namely, 
  a 
  vast 
  multitude 
  of 
  locusts, 
  with 
  which 
  

   the 
  sea 
  was 
  covered 
  for 
  many 
  miles. 
  205 
  

  

  It 
  is 
  possible 
  that 
  these 
  voyagers, 
  possessing 
  such 
  keen 
  eyes, 
  in 
  search- 
  

   ing 
  out 
  the 
  green 
  fields 
  of 
  the 
  plains, 
  are 
  deceived 
  by 
  the 
  dark 
  green 
  hue 
  

   of 
  the 
  sea. 
  Aeronauts 
  could 
  possibly 
  enlighten 
  us 
  on 
  this 
  point. 
  

  

  It 
  is 
  somewhat 
  strange 
  that 
  Koppen, 
  after 
  showing, 
  as 
  he 
  does, 
  that 
  

   locusts 
  avoid 
  wooded 
  and 
  mountain 
  regions, 
  should 
  accept 
  Darwin's 
  ex- 
  

  

  204 
  Introduction 
  to 
  Entomology, 
  Ok 
  en's 
  E<ln., 
  vol. 
  i, 
  p. 
  246. 
  

  

  2l,fl 
  Allgeioeino 
  geograplnscuc 
  Epherueriuen 
  von 
  Bertuch, 
  19r 
  Jahrgang, 
  Feb. 
  180G, 
  p. 
  254. 
  

  

  