﻿242 
  REPORT 
  UNITED 
  STATES 
  ENTOMOLOGICAL 
  COMMISSION. 
  

  

  pen, 
  imd 
  Kaferzustande. 
  Von 
  H. 
  Michels. 
  Zeitsehrift 
  fur 
  wissens. 
  Zoologie. 
  Bd. 
  

  

  xxxiv, 
  p. 
  C41-702. 
  PI. 
  33-36. 
  1880. 
  

   Packard. 
  On 
  the 
  internal 
  structure 
  of 
  the 
  Brain 
  of 
  Limulus 
  Polyphemus. 
  By 
  A. 
  S. 
  

  

  Packard, 
  jr. 
  American 
  Naturalist, 
  June, 
  1880, 
  p. 
  444-448. 
  

   . 
  The 
  Eyes 
  and 
  Brain 
  of 
  Cermatia 
  forceps. 
  By 
  A. 
  S. 
  Packard, 
  jr. 
  American 
  

  

  Naturalist, 
  August 
  1880, 
  p. 
  602. 
  

  

  The 
  Anatomy, 
  Histology, 
  and 
  Embryology 
  of 
  Limulus 
  Polyphemus. 
  By 
  A. 
  

  

  S. 
  Packard, 
  jr. 
  Anniversary 
  Memoirs 
  of 
  the 
  Boston 
  Society 
  of 
  Natural 
  History. 
  

   Boston, 
  1880, 
  pp. 
  1-45. 
  PL 
  i-vii. 
  

   Krieger. 
  Ueber 
  das 
  Centralnervensystem 
  des 
  Flusskrebses. 
  Von 
  K. 
  R. 
  Krieger, 
  

   Zeitsehrift 
  fur 
  wissenschaft. 
  Zoologie. 
  Bd. 
  xxxiii, 
  Jan. 
  23, 
  1880, 
  p. 
  527. 
  Plates. 
  

  

  CHAPTER 
  XII. 
  

   LOCUST 
  BAVAGES 
  IN 
  CALIFOBNIA. 
  

  

  As 
  the 
  chronology 
  of 
  the 
  history 
  of 
  the 
  locusts 
  in 
  California 
  has 
  been 
  

   given 
  in 
  our 
  first 
  report, 
  we 
  only 
  add 
  here 
  the 
  data 
  obtained 
  since 
  that 
  

   time 
  and 
  such 
  as 
  we 
  deem 
  of 
  importance 
  then 
  omitted. 
  

  

  Up 
  to 
  the 
  present 
  time 
  the 
  question 
  as 
  to 
  whether 
  Caloptenus 
  spretus 
  

   ever 
  invades 
  California 
  remains 
  an 
  

   open 
  one 
  which 
  we 
  have 
  been 
  unable 
  

   to 
  answer 
  decisively. 
  830 
  That 
  Cam- 
  

   nula 
  pellucida 
  ((Edipoda 
  atrox 
  is 
  a 
  

   synonym) 
  is 
  often 
  very 
  destructive, 
  

   is 
  conclusively 
  shown 
  by 
  the 
  data 
  

   here 
  given, 
  furnished 
  by 
  Mr. 
  J. 
  G. 
  

   Lemmon, 
  of 
  Sierra 
  Valley, 
  California. 
  

   But 
  that 
  this 
  species 
  is 
  truly 
  migra- 
  

   tory, 
  or 
  migratory 
  in 
  the 
  sense 
  this 
  

   term 
  is 
  usually 
  understood 
  when 
  ap- 
  

   plied 
  to 
  locusts, 
  appears 
  very 
  doubt- 
  

   ful 
  j 
  in 
  fact, 
  as 
  will 
  be 
  seen 
  by 
  refer- 
  FlG 
  - 
  io.-camnuia 
  peiiudda. 
  

   ence 
  to 
  Mr. 
  Lemmon's 
  statement, 
  there 
  are 
  strong 
  reasons 
  for 
  believing 
  

   it 
  is 
  not, 
  which 
  agrees 
  with 
  our 
  opinion 
  judging 
  from 
  the 
  insect 
  alone. 
  

  

  As 
  introductory 
  to 
  the 
  data 
  furnished 
  by 
  Mr. 
  Lemmon 
  we 
  give 
  here 
  

   a 
  description 
  of 
  this 
  species 
  and 
  also 
  the 
  generic 
  characters. 
  

  

  Before 
  presenting 
  a 
  description 
  from 
  the 
  specimens 
  now 
  before 
  us 
  we 
  

   will 
  indicate 
  briefly 
  the 
  position 
  the 
  genus 
  occupies 
  in 
  the 
  family, 
  accord- 
  

   ing 
  to 
  recent 
  classification. 
  

  

  By 
  reference 
  to 
  pages 
  34 
  and 
  35 
  of 
  our 
  First 
  Beport 
  the 
  reader 
  will 
  

   observe 
  that 
  the 
  subfamily 
  Acridinw, 
  so 
  far 
  as 
  represented 
  in 
  this 
  coun- 
  

  

  330 
  It 
  should 
  be 
  mentioned, 
  however, 
  that 
  Mr. 
  Packard, 
  as 
  tho 
  result 
  of 
  his 
  journey 
  

   through 
  California, 
  Western 
  Washington 
  Territory, 
  and 
  Oregon, 
  has 
  stated 
  his 
  belief 
  

   that 
  the 
  Rocky 
  Mountain 
  locust 
  (C. 
  spretus) 
  does 
  not 
  inhabit 
  nor 
  visit 
  the 
  Pacific 
  

   Coast, 
  nor 
  pass 
  west 
  of 
  the 
  Sierra 
  Nevada 
  and 
  Cascade 
  Mountaius. 
  — 
  [See 
  first 
  report, 
  

   p. 
  455, 
  and 
  Appendix, 
  p. 
  142. 
  ] 
  

  

  