﻿16 
  EEPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  course 
  toward 
  the 
  Snake 
  Eiver 
  or 
  a 
  northeasterly 
  course 
  to 
  the 
  Galla- 
  

   tin. 
  Mr. 
  Drew 
  also 
  gave 
  me 
  a 
  few 
  additional 
  facts 
  in 
  reference 
  to 
  the 
  

   swarm 
  of 
  1868 
  iu 
  the 
  vicinity 
  of 
  Helena, 
  where 
  they 
  "came 
  in 
  from 
  the 
  

   north," 
  as 
  he 
  states, 
  "striking 
  the 
  buildings 
  on 
  the 
  south 
  side 
  of 
  the 
  street, 
  

   and 
  fell 
  down 
  in 
  such 
  large 
  numbers 
  as 
  to 
  form 
  ^ 
  drifts 
  ' 
  of 
  'hoppers." 
  

   They 
  left 
  some 
  eggs, 
  as 
  in 
  fact 
  he 
  claimed 
  they 
  do 
  every 
  year 
  that 
  they 
  

   visit 
  any 
  section 
  in 
  this 
  part 
  of 
  the 
  territory. 
  He 
  supposed 
  they 
  were 
  

   hatched 
  in 
  the 
  vicinity 
  of 
  Flathead 
  Lake 
  and 
  the 
  eastern 
  foot-hills 
  of 
  

   the 
  Eockies 
  north 
  of 
  Sun 
  River. 
  

  

  After 
  this 
  the 
  next 
  swarms 
  that 
  he 
  noticed 
  were 
  those 
  of 
  1874, 
  coming- 
  

   in 
  from 
  the 
  east 
  to 
  southeast. 
  From 
  this 
  on 
  they 
  were 
  with 
  them 
  

   annually 
  up 
  to 
  last 
  year, 
  when 
  they 
  disappeared 
  to 
  the 
  west 
  and 
  southwest. 
  

   The 
  damage 
  during 
  this 
  succession 
  of 
  years 
  was 
  great 
  in 
  the 
  Sun 
  Eiver 
  

   Valley, 
  but 
  the 
  years 
  of 
  greatest 
  suffering 
  were 
  those 
  between 
  1874-'78. 
  

   Says 
  he: 
  " 
  In 
  the 
  spring 
  of 
  1877 
  the 
  young 
  were 
  so 
  numerous 
  that 
  the 
  

   ground 
  was 
  comi)letely 
  hidden 
  by 
  them 
  in 
  many 
  localities." 
  The 
  pre- 
  

   vious 
  summer, 
  1876, 
  great 
  swarms 
  came 
  in 
  from 
  the 
  southeast, 
  and 
  de- 
  

   posited 
  their 
  eggs 
  in 
  quantities 
  that 
  could 
  hardly 
  be 
  believed. 
  The 
  

   young 
  were 
  hatched 
  early 
  in 
  May, 
  and 
  left 
  us 
  soon 
  as 
  attaining 
  wings, 
  

   in 
  the 
  latter 
  part 
  of 
  June 
  and 
  early 
  July. 
  They 
  flew 
  to 
  the 
  west 
  and 
  

   southwest. 
  

  

  Here 
  similar 
  methods 
  were 
  adopted 
  to 
  those 
  mentioned 
  heretofore 
  

   for 
  the 
  destruction 
  of 
  the 
  young, 
  viz., 
  ditches, 
  &c. 
  Some 
  farmers 
  do 
  

   not 
  put 
  in 
  their 
  crops 
  until 
  the 
  young 
  are 
  all 
  hatched 
  and 
  they 
  have 
  

   cleaned 
  them 
  off 
  by 
  burning 
  straw, 
  &c., 
  over 
  the 
  fields; 
  but 
  this 
  plan 
  is 
  

   not 
  a 
  good 
  one, 
  since 
  in 
  this 
  country 
  grain 
  requires 
  the 
  entire 
  summer 
  

   to 
  mature, 
  and 
  if 
  not 
  put 
  in 
  early 
  in 
  spring 
  is 
  liable 
  to 
  be 
  hurt 
  by 
  early 
  

   frosts. 
  

  

  At 
  this 
  post 
  similar 
  methods 
  were 
  emploj^ed 
  for 
  the 
  destruction 
  of 
  the 
  

   young, 
  and, 
  while 
  the 
  incoming 
  swarms 
  threatened, 
  an 
  occasional 
  dis- 
  

   charge 
  of 
  muskets 
  and 
  artillery 
  seemed 
  to 
  produce 
  the 
  desired 
  effect 
  of 
  

   keeping 
  them 
  in 
  the 
  air. 
  I 
  am 
  informed 
  that 
  in 
  close 
  proximity 
  to 
  the 
  

   cannons 
  the 
  ground 
  was 
  strewn 
  with 
  the 
  bodies 
  of 
  dead 
  locusts, 
  proba- 
  

   bly 
  killed 
  by 
  the 
  shock 
  occasioned 
  by 
  the 
  discharging 
  guns. 
  

  

  I 
  hear 
  that 
  a 
  few 
  migratory 
  locusts 
  have 
  been 
  seen 
  in 
  the 
  vicinity 
  of 
  

   the 
  south 
  fork 
  of 
  Sun 
  Eiver, 
  about 
  40 
  miles 
  west 
  of 
  Shaw, 
  but 
  over 
  a 
  

   very 
  limited 
  area. 
  \ 
  

  

  August 
  19. 
  — 
  Between 
  Fort 
  Shaw 
  and 
  the 
  Missouri 
  Eiver 
  lies 
  a 
  large 
  

   dry 
  flat, 
  on 
  which 
  at 
  various 
  times 
  numerous 
  locusts 
  have 
  bred, 
  but 
  

   this 
  district, 
  like 
  all 
  others, 
  appears 
  to 
  be 
  entirely 
  free 
  from 
  them 
  this 
  

   season. 
  In 
  fact, 
  there 
  are 
  fewer 
  of 
  C. 
  sprettis 
  in 
  Montana 
  this 
  season 
  

   than 
  of 
  any 
  other 
  species. 
  

  

  August 
  20. 
  — 
  During 
  three 
  hours' 
  hunt 
  for 
  locusts 
  I 
  found 
  but 
  three 
  

   C. 
  spretus. 
  Caught 
  many 
  for 
  trout 
  fishing, 
  but 
  with 
  above 
  result. 
  Ko 
  

   damage 
  mentioned 
  in 
  this 
  vicinity 
  since 
  1876. 
  Came 
  from 
  the 
  southeast 
  

   and 
  east. 
  But 
  little 
  farming 
  done 
  here, 
  and 
  not 
  much 
  grazing. 
  

  

  