﻿PACKAED.] 
  THE 
  LOCUST 
  IN 
  COLORADO 
  AND 
  KANSAS. 
  > 
  593 
  

  

  soil, 
  but 
  still 
  the 
  locasts 
  crept 
  under. 
  Peach-trees 
  were 
  defoliated, 
  the 
  

   fruit 
  devoured, 
  and 
  the 
  stones 
  left 
  attached 
  to 
  the 
  stems, 
  while 
  the 
  

   branches 
  were 
  girdled. 
  As 
  the 
  habits 
  of 
  the 
  grasshopper 
  were 
  studied 
  

   at 
  Lawrence 
  by 
  Prof. 
  F. 
  H. 
  Snow, 
  of 
  the 
  University 
  of 
  Kansas, 
  and 
  

   published 
  in 
  the 
  Transactions 
  of 
  the 
  Kansas 
  Academy 
  of 
  Science 
  for 
  

   1875, 
  I 
  condense 
  his 
  statements 
  as 
  the 
  results 
  of 
  the 
  observations 
  of 
  an 
  

   a(;complished 
  entomologist 
  living 
  farther 
  west 
  than 
  any 
  other 
  trained 
  

   observer. 
  Professor 
  Snow 
  first 
  observed 
  the 
  recently-hatched 
  locust 
  on 
  

   the 
  6th 
  of 
  April. 
  "They 
  were 
  very 
  diminutive 
  in 
  size, 
  and 
  when 
  dis- 
  

   turbed 
  by 
  my 
  walking 
  among 
  them, 
  would 
  hop 
  only 
  two 
  or 
  three 
  inches 
  

   high, 
  looking 
  very 
  much 
  like 
  the 
  grains 
  of 
  sand 
  in 
  rapid 
  motion 
  upon 
  a 
  

   vibrating 
  acoustic 
  plate." 
  About 
  the 
  10th 
  of 
  May 
  the 
  young 
  locusts 
  

   began 
  to 
  desert 
  tbeir 
  hatching-grounds, 
  which, 
  it 
  should 
  be 
  borne 
  in 
  

   mind, 
  is 
  where 
  the 
  locusts 
  which 
  had 
  arrived 
  from 
  the 
  Rocky 
  Mountain 
  

   ])lateau 
  during 
  the 
  previous 
  summer 
  laid 
  their 
  eggs, 
  the 
  latter 
  being 
  

   the 
  parents 
  of 
  the 
  brood 
  observed 
  by 
  Professor 
  Snow. 
  As 
  these 
  locusts 
  

   increased 
  in 
  size 
  they 
  spread 
  around, 
  and 
  it 
  was 
  at 
  this 
  time, 
  namely, 
  

   before 
  the 
  wings 
  are 
  formed, 
  that 
  they 
  were 
  most 
  injurious. 
  In 
  fifty- 
  

   five 
  days 
  after 
  hatching, 
  the 
  locust 
  acquires 
  its 
  wings 
  and 
  takes 
  flight. 
  

   They 
  were 
  first 
  seen 
  to 
  rise 
  and 
  take 
  flight, 
  for 
  their 
  final 
  departure, 
  on 
  

   June 
  3. 
  By 
  the 
  12th 
  of 
  June, 
  just 
  two 
  weeks 
  from 
  the 
  time 
  of 
  their 
  

   last 
  molt, 
  very 
  few 
  remained 
  in 
  the 
  pupa 
  (or 
  partially-winged) 
  condi- 
  

   tion. 
  The 
  destruction 
  in 
  1875 
  was 
  confined 
  to 
  a 
  narrow 
  strip 
  on 
  the 
  

   eastern 
  border 
  of 
  Kansas, 
  along 
  both 
  sides 
  of 
  the 
  Kansas 
  Pacific 
  Rail- 
  

   road. 
  

  

  Between 
  Lawrence 
  and 
  Topeka 
  the 
  damage 
  was 
  much 
  less 
  than 
  about 
  

   Lawrence, 
  and 
  west 
  of 
  Topeka 
  I 
  could 
  not 
  see 
  that 
  the 
  crops 
  had 
  been 
  

   affected. 
  At 
  Fort 
  Riley 
  very 
  few 
  locusts 
  were 
  seen 
  along 
  the 
  railroad- 
  

   track. 
  Reaching 
  Denver 
  June 
  26, 
  a 
  few 
  locusts, 
  the 
  remains 
  of 
  the 
  spring- 
  

   swarms, 
  were 
  seen 
  hopping 
  over 
  the 
  ground. 
  At 
  Denver, 
  5,211 
  feet 
  

   elevation, 
  the 
  young 
  hatch 
  from 
  March 
  15 
  until 
  May 
  15 
  ; 
  there 
  is 
  an 
  early 
  

   and 
  a 
  late 
  brood. 
  A 
  farmer 
  told 
  us 
  that 
  he 
  saw 
  the 
  young 
  on 
  the 
  snow 
  

   March 
  20, 
  and 
  again 
  after 
  another 
  fall 
  of 
  snow 
  March 
  28. 
  A 
  month 
  

   later, 
  about 
  the 
  middle 
  of 
  April, 
  a 
  second 
  brood, 
  and 
  about 
  the 
  middle 
  of 
  

   May 
  a 
  third 
  brood 
  appears. 
  

  

  At 
  Boulder 
  the 
  injury 
  from 
  grasshoppers 
  had 
  been 
  light; 
  the 
  grass- 
  

   hoppers 
  appeared 
  in 
  greatest 
  numbers 
  about 
  the 
  1st 
  of 
  May, 
  stripping 
  

   some 
  cornfields, 
  and 
  destroying 
  about 
  half 
  the 
  crop, 
  and 
  then 
  went 
  up 
  

   the 
  Boulder 
  Canon, 
  May 
  15. 
  They 
  were 
  still 
  not 
  infrequently 
  seen 
  on 
  

   the 
  plains. 
  

  

  June 
  30, 
  at 
  Nederland 
  up 
  the 
  Boulder 
  Canon, 
  I 
  first 
  saw 
  the 
  locusts 
  

   flying 
  in 
  the 
  air, 
  toward 
  the 
  west, 
  the 
  wind 
  blowing 
  from 
  the 
  east. 
  

   Their 
  pupae 
  were 
  very 
  abundant 
  on 
  grass, 
  logs, 
  etc. 
  I 
  was 
  told 
  that 
  

   tliey 
  had 
  become 
  fledged 
  on 
  the 
  25th-27th, 
  and 
  immediately 
  began 
  to 
  fly 
  

   westward 
  up 
  the 
  caiion. 
  At 
  Caribou 
  (9,167 
  feet 
  elevation), 
  the 
  grass- 
  

   hoppers 
  had 
  destroyed 
  the 
  first 
  crop. 
  Around 
  the 
  base 
  of 
  Arapahoe 
  

   Peak, 
  between 
  11,000 
  and 
  12,000 
  feet 
  elevation, 
  adult 
  winged 
  locusts 
  

   were 
  seen, 
  but 
  no 
  young. 
  

  

  July 
  2, 
  in 
  ridiug 
  from 
  Kederland 
  to 
  Blackhawk, 
  the 
  air 
  was 
  filled 
  with 
  

   grasshoppers 
  at 
  an 
  altitude 
  of 
  several 
  hundred 
  feet, 
  sailing 
  on 
  the 
  wind 
  

   and 
  driven 
  eastward. 
  The 
  stage-driver 
  told 
  me 
  that 
  they 
  had 
  been 
  

   flying 
  five 
  days. 
  The 
  potato-plants 
  were 
  at 
  this 
  point 
  5 
  inches 
  high. 
  

   At 
  Blackhawk, 
  (7,543 
  feet 
  elevation), 
  the 
  pupse 
  of 
  the 
  locust 
  was 
  abun- 
  

   dant, 
  as 
  well 
  as 
  winged 
  individuals. 
  

  

  At 
  Golden, 
  at 
  base 
  of 
  the 
  Foot 
  Hills 
  (5,729 
  feet 
  elevation), 
  July 
  3, 
  the 
  

   locust 
  had 
  been 
  fledged 
  for 
  five 
  days, 
  and 
  the 
  pupse 
  weie 
  still 
  abundant 
  

   38 
  GS 
  

  

  