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  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  and 
  passed 
  on 
  southward, 
  leaving 
  eggs 
  at 
  various 
  points 
  along 
  their 
  

   line 
  of 
  march. 
  One 
  swarm 
  seen 
  this 
  year 
  (1880) 
  on 
  Hangman's 
  Creek, 
  

   about 
  48 
  miles 
  south 
  of 
  Spokane 
  Falls, 
  was 
  of 
  considerable 
  extent 
  and 
  

   continued 
  for 
  two 
  days. 
  It 
  was 
  about 
  4 
  miles 
  in 
  width 
  where 
  they 
  flew 
  

   thickest. 
  After 
  going 
  as 
  far 
  south 
  as 
  the 
  Palouse 
  Eiver 
  they 
  began 
  

   depositing 
  eggs 
  and 
  continued 
  to 
  do 
  so 
  until 
  they 
  crossed 
  Snake 
  Eiver, 
  

   after 
  which 
  they 
  seem 
  to 
  have 
  been 
  lost 
  sight 
  of. 
  Yery 
  likely 
  it 
  will 
  

   l^rove 
  to 
  be 
  identical 
  with 
  the 
  swarm 
  that 
  was 
  reported 
  to 
  have 
  appeared 
  

   and 
  to 
  have 
  done 
  damage 
  to 
  grain 
  in 
  the 
  vicinity 
  of 
  Walla 
  Walla 
  dur- 
  

   ing 
  August 
  of 
  this 
  year, 
  1880. 
  

  

  From 
  the 
  above-mentioned 
  swarms 
  originated 
  numerous 
  small 
  ones, 
  

   that 
  were 
  observed 
  throughout 
  various 
  portions 
  of 
  this 
  Territory 
  during 
  

   the 
  present 
  summer, 
  1881. 
  These, 
  however, 
  were 
  nowhere 
  excessively 
  

   numerous, 
  and 
  did 
  but 
  little 
  damage 
  as 
  far 
  as 
  could 
  be 
  ascertained, 
  save 
  

   in 
  a 
  few 
  isolated 
  spots. 
  Only 
  on 
  one 
  occasion 
  were 
  any 
  noticed 
  in 
  the 
  

   air 
  that 
  I 
  could 
  learn 
  of, 
  and 
  this 
  information 
  was 
  so 
  vague 
  that 
  I 
  did 
  

   not 
  ascertain 
  the 
  direction 
  in 
  which 
  they 
  were 
  moving. 
  At 
  Sprague, 
  

   on 
  the 
  line 
  of 
  the 
  Northern 
  Pacific 
  Eailroad, 
  great 
  numbers 
  of 
  young 
  

   were 
  hatched, 
  and 
  also 
  for 
  some 
  distance 
  southward. 
  These, 
  however, 
  

   do 
  not 
  appear 
  to 
  have 
  migrated, 
  but 
  remained 
  and 
  deposited 
  their 
  eggs, 
  

   since, 
  on 
  October 
  15, 
  I 
  found 
  great 
  numbers 
  of 
  their 
  dead 
  bodies 
  lying 
  

   scattered 
  over 
  the 
  ground. 
  I 
  was 
  informed 
  that 
  this 
  particular 
  locality 
  

   is 
  always 
  more 
  or 
  less 
  infested 
  with 
  this 
  insect. 
  

  

  At 
  several 
  other 
  points, 
  especially 
  along 
  Snake 
  Eiver 
  towards 
  Lewis- 
  

   ton, 
  I 
  was 
  informed 
  that 
  young 
  locusts 
  had 
  hatched 
  and 
  done 
  some 
  dam- 
  

   age, 
  but 
  could 
  not 
  learn 
  to 
  what 
  extent 
  this 
  occurred, 
  nor 
  could 
  I 
  ascer- 
  

   tain 
  anything 
  in 
  reference 
  to 
  their 
  movements 
  after 
  maturing. 
  At 
  the 
  

   crossing 
  (Palouse 
  Ferry) 
  of 
  Snake 
  Eiver 
  in 
  early 
  si)ring, 
  May, 
  I 
  believe, 
  

   several 
  fields 
  of 
  grain 
  were 
  destroyed 
  by 
  these 
  little 
  locusts. 
  So 
  it 
  is 
  

   impossible 
  for 
  me 
  to 
  predict 
  anything 
  in 
  reference 
  to 
  locust 
  probabilities 
  

   in 
  this 
  portion 
  of 
  the 
  country 
  for 
  the 
  coming 
  season, 
  not 
  knowing 
  any- 
  

   thing 
  more 
  definite 
  in 
  reference 
  to 
  the 
  movements 
  of 
  the 
  locusts 
  hatched 
  

   here 
  this 
  season. 
  

  

  In 
  the 
  fall 
  of 
  1880 
  great 
  numbers 
  of 
  eggs 
  were 
  deposited 
  in 
  portions 
  

   of 
  Nevada 
  and 
  Western 
  Utah, 
  which 
  undoubtedly 
  gave 
  birth 
  to 
  some 
  

   young 
  locusts 
  in 
  the 
  spring 
  of 
  1881, 
  but 
  not 
  having 
  any 
  data 
  whatever 
  

   from 
  this 
  portion 
  of 
  the 
  West 
  with 
  which 
  to^ 
  substantiate 
  this, 
  1 
  can 
  

   give 
  no 
  further 
  clew. 
  

  

  However 
  free 
  from 
  locusts 
  the 
  country 
  was 
  in 
  1879, 
  alter 
  the 
  great 
  

   raids 
  of 
  1875-77, 
  they 
  are 
  again 
  on 
  the 
  increase, 
  and 
  should 
  be 
  guarded 
  

   against 
  on 
  all 
  sides. 
  Of 
  course, 
  there 
  must 
  have 
  been 
  many 
  more 
  of 
  these 
  

   small 
  swarms 
  in 
  portions 
  of 
  the 
  regions 
  not 
  visited 
  by 
  me, 
  which, 
  if 
  

   nothing 
  occurs 
  to 
  check 
  them, 
  in 
  a 
  few 
  years 
  will 
  materially 
  increase 
  

   their 
  numbers. 
  Of 
  course, 
  at 
  present, 
  the 
  movements 
  of 
  these 
  swarms 
  

   are 
  all 
  independent 
  of 
  one 
  another, 
  but 
  as 
  tbey 
  become 
  larger 
  and 
  more 
  

   numerous 
  they 
  will 
  be 
  more 
  closely 
  connected, 
  and 
  finally 
  become 
  ani- 
  

   mated 
  with 
  one 
  movement. 
  

  

  