﻿FLIGHTS 
  OF 
  LOCUSTS 
  IN 
  1878. 
  161 
  

  

  son, 
  invaded 
  these 
  areas. 
  But 
  that 
  they 
  laid 
  few, 
  if 
  any, 
  eggs 
  will 
  be 
  

   seen 
  by 
  reference 
  to 
  Map 
  3 
  for 
  1878, 
  where 
  no 
  hatching- 
  grounds 
  are 
  in- 
  

   dicated. 
  

  

  In 
  Colorado 
  also 
  many 
  hatched 
  about 
  Greeley 
  and 
  Denver, 
  but 
  owing 
  

   to 
  the 
  unusually 
  heavy 
  rains, 
  with 
  a 
  light 
  fall 
  of 
  snow, 
  and 
  cold 
  weather 
  

   late 
  in 
  April 
  and 
  early 
  in 
  May, 
  the 
  young 
  died 
  in 
  great 
  numbers. 
  A 
  

   few 
  hatched 
  in 
  Lake 
  County 
  along 
  the 
  Arkansas, 
  and 
  in 
  Park 
  County, 
  

   as 
  well 
  as 
  in 
  the 
  San 
  Luis 
  Valley 
  and 
  Wet 
  Mountain 
  Valley, 
  while 
  the 
  

   injury 
  from 
  the 
  unfledged 
  locusts 
  was 
  greater 
  than 
  in 
  any 
  other 
  part 
  of 
  

   the 
  State. 
  

  

  In 
  New 
  Mexico 
  the 
  valley 
  of 
  Taos 
  was 
  devastated 
  by 
  the 
  unfledged 
  

   young, 
  and 
  they 
  were 
  abundant 
  at 
  Las 
  Vegas, 
  and 
  at 
  Santa 
  Fe 
  north- 
  

   ward 
  to 
  San 
  Juan. 
  

  

  In 
  Wyoming 
  the 
  hatching-grounds 
  this 
  year 
  lay 
  between 
  a 
  point 
  50 
  

   miles 
  northeast 
  of 
  Laramie 
  City 
  extending 
  to 
  Custer 
  near 
  the 
  Black 
  

   Hills, 
  and 
  about 
  Fort 
  Reno, 
  as 
  well 
  as 
  in 
  the 
  valley 
  of 
  Hay 
  Creek, 
  while 
  

   the 
  flight 
  of 
  early 
  swarms 
  indioate 
  that 
  they 
  originated 
  from 
  hatching- 
  

   grounds 
  situated 
  not 
  far 
  northwest 
  of 
  Rock 
  Creek 
  Station 
  and 
  Como, 
  

   on 
  the 
  Union 
  Pacific 
  Eailway. 
  It 
  seems 
  also 
  most 
  probable 
  that 
  a 
  few 
  

   hatched 
  out 
  northeast 
  of 
  the 
  Black 
  Hills, 
  as 
  we 
  have 
  indicated 
  on 
  the 
  

   map, 
  small 
  flights 
  being 
  seen 
  ou 
  the 
  Belle 
  Fourche 
  in 
  the 
  Black 
  Hills, 
  

   about 
  the 
  middle 
  of 
  June, 
  going 
  westward. 
  

  

  In 
  Utah 
  hatching-grounds 
  of 
  limited 
  extent 
  occupied 
  tracts 
  about 
  

   Salt 
  Lake 
  City 
  and 
  Farmington, 
  and 
  many 
  hatched 
  out 
  in 
  the 
  northern 
  

   part 
  of 
  the 
  Territory, 
  viz, 
  in 
  Malade, 
  Cache, 
  Morgan, 
  Weber, 
  and 
  Davis 
  

   Counties. 
  When 
  fledged 
  the 
  locusts 
  fled 
  southward. 
  

  

  In 
  Idaho 
  locusts 
  bred 
  in 
  considerable 
  quantities 
  at 
  Boise 
  City, 
  and 
  

   when 
  fledged 
  it 
  is 
  most 
  probable 
  that 
  these 
  were 
  the 
  visitants 
  which 
  late 
  

   in 
  July 
  and 
  early 
  in 
  August 
  proved 
  so 
  destructive 
  to 
  the 
  southwest 
  of 
  

   Boise 
  in 
  the 
  Bruneau 
  Valley. 
  

  

  The 
  hatching-grounds 
  in 
  Montana 
  were 
  evidently 
  of 
  considerable 
  ex- 
  

   tent, 
  the 
  young, 
  when 
  winged, 
  almost 
  wholly 
  flying 
  southward 
  into 
  

   Idaho 
  and 
  Utah, 
  none 
  to 
  any 
  extent, 
  so 
  far 
  as 
  known, 
  flying 
  eastward 
  

   upon 
  the 
  plains. 
  The 
  young 
  were 
  observed 
  hatching 
  out 
  in 
  the 
  valley 
  of 
  

   Marias 
  Biver, 
  also 
  about 
  Fort 
  Benton, 
  as 
  well 
  as 
  near 
  Fort 
  Peck 
  and 
  Wolf 
  

   Point, 
  while 
  extensive 
  hatching-grounds 
  extended 
  along 
  the 
  Yellow- 
  

   stone 
  Biver 
  from 
  Froze-to 
  -death 
  Creek 
  to 
  Clark's 
  Fork. 
  

  

  In 
  British 
  America 
  locusts 
  hatched 
  at 
  Fort 
  McLeod, 
  northwest 
  of 
  

   Fort 
  Benton. 
  

  

  FLIGHTS 
  in 
  1878. 
  

  

  In 
  1878 
  the 
  hatching-grounds 
  were 
  much 
  more 
  limited 
  in 
  number 
  

   and 
  extent 
  than 
  in 
  the 
  previous 
  year. 
  None 
  worthy 
  of 
  mention 
  existed 
  

   east 
  of 
  the 
  Rocky 
  Mountains, 
  and 
  it 
  was 
  only 
  in 
  Montana 
  that 
  the 
  

   young 
  appeared 
  to 
  any 
  considerable 
  extent. 
  Two 
  small, 
  scattered 
  

   nights, 
  causing, 
  however, 
  no 
  local 
  damage, 
  crossed 
  the 
  southwest 
  corner 
  

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