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  VI 
  TABLE 
  OF 
  CONTENTS. 
  

  

  m 
  ♦ 
  Page. 
  

  

  The 
  brain 
  of 
  the 
  locust— 
  Continued. 
  

  

  —The 
  antennal 
  or 
  olfactory 
  lobes, 
  235— 
  The 
  commissural 
  lobes, 
  235— 
  The 
  

   brain 
  of 
  locusts 
  compared 
  with 
  that 
  of 
  other 
  insects, 
  235, 
  236— 
  Structure 
  of 
  

   the 
  brain 
  in 
  the 
  embryo 
  locust, 
  236— 
  The 
  brain 
  of 
  the 
  embryo 
  locust 
  com- 
  

   pared 
  with 
  the 
  first 
  thoracic 
  ganglion, 
  238— 
  The 
  brain 
  in 
  the 
  second 
  em- 
  

   bryonic 
  stage, 
  238, 
  239— 
  Structure 
  of 
  the 
  subcesophageal 
  ganglion, 
  239— 
  

   The 
  brain 
  of 
  the 
  freshly 
  hatched 
  larva 
  of 
  Caloptenus 
  spretus, 
  239— 
  of 
  the 
  

   third 
  larval 
  stage 
  of 
  C. 
  bivittatus, 
  239— 
  of 
  the 
  second 
  or 
  last 
  pupal 
  stage 
  of 
  

   C. 
  spretus, 
  240, 
  241— 
  Bibliography 
  of 
  the 
  internal 
  structure 
  of 
  the 
  brain 
  

   of 
  Crustacea 
  and 
  insects, 
  241, 
  242. 
  

  

  CHAPTER 
  XII. 
  

  

  Locust 
  ravages 
  in 
  California 
  

  

  Position 
  of 
  the 
  genus 
  Camnula 
  in 
  the 
  (Edipodini, 
  242, 
  243— 
  Description 
  "of 
  the 
  

   genus 
  Camnula, 
  243— 
  of 
  (Edipodapellucida, 
  243— 
  of 
  (Edipoda 
  atrox, 
  243, 
  244— 
  

   of 
  Camnula 
  pellucida, 
  244-246— 
  The 
  locust 
  in 
  California 
  in 
  1878, 
  246— 
  in 
  

   Sierra 
  Valley, 
  247— 
  in 
  the 
  vicinity 
  of 
  Loyalton, 
  247, 
  248— 
  of 
  Sie'rraville, 
  

   249— 
  History 
  of 
  locust 
  devastation 
  in 
  California, 
  250— 
  Enemies 
  of 
  the 
  

   Californian 
  locust, 
  251— 
  Protective 
  measures, 
  251,252— 
  Life 
  history 
  of 
  

   Camnula 
  atrox, 
  252, 
  253-The 
  red 
  or 
  locust 
  mite, 
  253-Damage 
  done 
  by 
  the 
  

   locust 
  in 
  Sierra 
  Valley, 
  254, 
  255— 
  The 
  locust 
  in 
  California 
  in 
  1879, 
  255-257— 
  

   Description 
  of 
  (Edipoda 
  obliterata, 
  257-259-Remarks 
  on 
  Cratypedes 
  PuU 
  

   nami, 
  259. 
  

  

  CHAPTER 
  XIII. 
  

  

  Further 
  facts 
  about 
  the 
  natural 
  enemies 
  of 
  the 
  locust 
  259 
  

  

  Blister-beetle 
  larvae 
  feeding 
  on 
  the 
  eggs 
  of 
  the 
  Californian 
  locust, 
  259, 
  260— 
  

   Retardation 
  in 
  the 
  development 
  of 
  blister-beetles, 
  as 
  shown 
  in 
  Epieauta 
  

   wttata, 
  260— 
  Philosophy 
  of 
  such 
  retardation, 
  260,261— 
  Eggs 
  of 
  Chauliog- 
  

   nathus 
  pennsylvanicus, 
  261-Habits 
  of 
  the 
  young 
  larva, 
  261, 
  262— 
  Egg-laying 
  

   of 
  Asilid-flies, 
  and 
  particularly 
  of 
  Mallophora 
  orcina, 
  262— 
  Bee^fly 
  larva 
  

   common 
  among 
  the 
  eggs 
  of 
  Camnula 
  pellucida, 
  263-Habits 
  of 
  bee-fly 
  

   larvae, 
  263, 
  264— 
  Observations 
  on 
  the 
  larval 
  habits 
  of 
  Bombilii, 
  264,265— 
  

   Larval 
  habits 
  of 
  Argyramvba, 
  265, 
  266— 
  Abundance 
  of 
  bee-flies 
  and 
  blis- 
  

   ter-beetles 
  in 
  the 
  Western 
  country, 
  connected 
  with 
  the 
  abundance 
  of 
  

   locusts, 
  266— 
  Life 
  history 
  of 
  Systwchus 
  oreas, 
  266, 
  267— 
  Description 
  of 
  its 
  

   larva, 
  267-of 
  the 
  pupa, 
  267,268-of 
  the 
  imago, 
  268-Description 
  of 
  Sys- 
  

   tachus 
  oreas, 
  268-Larva 
  of 
  Triodites 
  mus, 
  268, 
  269-Image 
  of 
  Triodites 
  mus, 
  

   269— 
  Dr. 
  T. 
  A. 
  Chapman's 
  observations 
  on 
  Bombylius 
  major, 
  269— 
  Hair- 
  

   worms 
  and 
  red-mites 
  abundant 
  upon 
  locusts 
  in 
  California, 
  270-Chalcid- 
  

   fly 
  parasitic 
  on 
  locusts, 
  270-Synonymy 
  of 
  the 
  locust-egg 
  parasite 
  270- 
  

   Digger-wasps 
  killing 
  locusts, 
  270.' 
  

  

  • 
  Chapter 
  XIV. 
  

   Courses 
  that 
  may 
  be 
  adopted 
  by 
  the 
  general 
  government 
  to 
  lessen 
  

  

  LOCUST 
  INJURY 
  **>oo*.n 
  

  

  Importance 
  of 
  destroying 
  the 
  locusts 
  in 
  their 
  native 
  breeding-grounds, 
  

   I 
  V" 
  ,.°* 
  P 
  ltulatiou 
  of 
  means 
  suggested 
  in 
  first 
  report, 
  271-Importation 
  

   of 
  English 
  rooks, 
  271-Importance 
  of 
  burning 
  over 
  the 
  permanent 
  breed- 
  

   ing-grounds, 
  272-Brceding-grounds 
  occupy 
  comparatively 
  small 
  areas 
  in 
  

   the 
  Permanent 
  region, 
  273-Protection 
  from 
  invading 
  swarms, 
  273-Locust 
  

   warnings 
  through 
  the 
  Signal 
  Bureau, 
  273-Diverting 
  swarms 
  by 
  means 
  of 
  

   smoke 
  274-Co-operation 
  of 
  governments 
  and 
  governmental 
  institutions, 
  

   ^-Apathy 
  apt 
  to 
  result 
  from 
  periods 
  of 
  immunity 
  from 
  locust 
  inva- 
  

   sions, 
  274-How 
  the 
  government 
  can 
  aid, 
  275-Surface 
  characteristics 
  of 
  

  

  271 
  

  

  