﻿54 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  tation, 
  while 
  a 
  few 
  others 
  frequent 
  forests 
  and 
  their 
  borders, 
  where 
  they 
  

   revel 
  in 
  luxury 
  from 
  day 
  to 
  day 
  with 
  the 
  katydids 
  and 
  other 
  shade-lov- 
  

   ing 
  insects. 
  Fezotcttix^ 
  with 
  but 
  few 
  excei)tions, 
  prefers 
  cool 
  and 
  shady 
  

   localities, 
  and 
  hence 
  is 
  often 
  found 
  among 
  or 
  near 
  rocks, 
  on 
  monntaiii 
  

   slopes, 
  in 
  clearings 
  or 
  on 
  the 
  outskirts 
  of 
  timber 
  belts, 
  and 
  in 
  meadows. 
  

   A 
  few 
  species, 
  as 
  Chrysocliraon 
  and 
  Stenohothrus, 
  are 
  lovers 
  of 
  the 
  cool 
  

   and 
  damp 
  localities 
  along 
  streams, 
  and 
  as 
  a 
  rule 
  either 
  winter 
  as 
  larvse 
  

   or 
  pupae. 
  These 
  are 
  often 
  seen 
  quite 
  early 
  in 
  spring, 
  and 
  very 
  frequently 
  

   have 
  been 
  the 
  cause 
  of 
  unnecessary 
  alarm 
  among 
  the 
  more 
  ignorant 
  per- 
  

   sons, 
  who 
  imagined 
  them 
  to 
  be 
  forerunners 
  of 
  a 
  general 
  locust 
  invasion. 
  

  

  However 
  numerous 
  these 
  different 
  varieties 
  of 
  locusts 
  that 
  are 
  scat- 
  

   tered 
  throughout 
  the 
  various 
  portions 
  of 
  the 
  United 
  States 
  and 
  north- 
  

   ward, 
  all 
  the 
  others 
  combined 
  do 
  not 
  cause 
  one-tenth 
  so 
  much 
  injury 
  as 
  

   C. 
  spretus 
  does. 
  True, 
  several 
  others 
  at 
  times 
  have 
  been 
  known 
  to 
  be- 
  

   come 
  quite 
  numerous, 
  and 
  have 
  committed 
  much 
  injury 
  to 
  crops 
  and 
  

   vegetation 
  in 
  general. 
  The 
  chief 
  of 
  these 
  are 
  Camnula 
  atrox, 
  Calop- 
  

   tenus 
  differ 
  entialis^ 
  G. 
  femur-riibrum, 
  and 
  0. 
  atJanis; 
  and 
  at 
  such 
  times 
  

   they 
  have 
  all 
  exhibited 
  to 
  a 
  greater 
  or 
  less 
  degree 
  the 
  migratory 
  nature 
  

   of 
  the 
  true 
  plague 
  of 
  the 
  West 
  and 
  Northwest. 
  

  

  In 
  addition 
  to 
  the 
  above-named 
  insects 
  of 
  this 
  order, 
  I 
  have 
  noticed 
  

   the 
  following 
  locusts 
  when 
  their 
  movements 
  partook 
  of 
  the 
  migratory 
  

   character, 
  viz 
  : 
  Acridmm 
  americanum^ 
  (Edipoda 
  x^lattei^ 
  (E. 
  longipennis, 
  

   and 
  Tropidolophus 
  formosus 
  ; 
  the 
  male 
  only 
  of 
  the 
  last 
  exhibiting 
  this 
  

   characteristic. 
  They 
  would 
  start 
  up 
  without 
  any 
  seeming 
  disturbance 
  

   and 
  fly 
  great 
  distances 
  before 
  alighting, 
  and 
  then 
  repeat 
  the 
  action 
  sev- 
  

   eral 
  times, 
  invariably 
  going 
  with 
  the 
  wind. 
  These 
  movements 
  were 
  

   made 
  independently 
  of 
  one 
  another, 
  though 
  occasionally 
  I 
  have 
  noticed 
  

   several 
  locusts 
  in 
  the 
  air 
  at 
  the 
  same 
  time. 
  Whether 
  or 
  not 
  this 
  was 
  

   a 
  case 
  of 
  true 
  migration 
  on 
  the 
  part 
  of 
  these 
  insects 
  I 
  will 
  not 
  now 
  stop 
  

   to 
  inquire 
  j 
  but 
  confess 
  that 
  it 
  not 
  only 
  looked 
  so 
  to 
  me 
  at 
  the 
  time, 
  but 
  

   also 
  answered 
  every 
  i)urpose 
  that 
  such 
  a 
  movement 
  could. 
  

  

  These 
  ''natives," 
  as 
  they 
  are 
  termed 
  in 
  contradistinction 
  to 
  the 
  mi- 
  

   gratory 
  species, 
  deposit 
  their 
  eggs 
  in 
  such 
  localities 
  as 
  agree 
  with 
  the 
  

   habits 
  of 
  the 
  different 
  species. 
  They 
  are, 
  however, 
  generally 
  partial 
  

   to 
  sheltered 
  and 
  partly 
  bare 
  grounds 
  where 
  the 
  soil 
  is 
  firm 
  and 
  not 
  too 
  

   wet. 
  

  

  The 
  youug 
  live 
  where 
  their 
  parents 
  do, 
  and 
  differ 
  but 
  little 
  in 
  their 
  

   habits. 
  They 
  molt 
  from 
  three 
  to 
  four 
  times. 
  ^ 
  

  

  Most, 
  if 
  not 
  all, 
  of 
  these 
  locusts 
  are 
  continually 
  harassed 
  by 
  insect 
  

   and 
  other 
  enemies. 
  These 
  enemies 
  and 
  i)arasites 
  do 
  not 
  materially 
  differ 
  

   from 
  those 
  affecting 
  C. 
  spretus, 
  and 
  therefore 
  require 
  no 
  additional 
  de- 
  

   scription 
  here. 
  

  

  The 
  following 
  is 
  a 
  list 
  of 
  the 
  locusts, 
  or 
  "grasshoppers," 
  as 
  they 
  are 
  

   snore 
  commonlj^ 
  termed, 
  inhabiting 
  the 
  United 
  States 
  and 
  the 
  adjoining 
  

   portions 
  of 
  British 
  America 
  and 
  Canada, 
  as 
  nearly 
  as 
  I 
  can 
  give 
  it 
  at 
  

  

  