﻿MEETING-POINT 
  OF 
  THE 
  THREE 
  SUB-REGIONS. 
  67 
  

  

  Pallas 
  asserts 
  the 
  C. 
  itaUcus 
  extends 
  not 
  only 
  to 
  the 
  Crimea, 
  but 
  

   beyond 
  the 
  European 
  boundary 
  even 
  to 
  the 
  Irtish; 
  thus 
  invading 
  the 
  

   area 
  of 
  P. 
  migratorius. 
  Dr. 
  Clark, 
  who 
  traveled 
  over 
  the 
  northern 
  part 
  

   of 
  this 
  debatable 
  section, 
  remarks 
  that 
  the 
  locusts 
  — 
  

  

  Consisted 
  of 
  two 
  species, 
  G-njllus 
  tartaricus 
  and 
  the 
  Gryllus 
  migratorius, 
  or 
  the 
  common 
  

   migratory 
  locust. 
  The 
  first, 
  almost 
  twice 
  the 
  size 
  of 
  the 
  second, 
  because 
  it 
  precedes 
  

   the 
  other, 
  bears 
  the 
  name 
  of 
  herald 
  or 
  messenger. 
  The 
  migratory 
  locust 
  has 
  red 
  legs 
  

   and 
  its 
  inferior 
  wings 
  exhibit 
  a 
  lively 
  red 
  color. 
  

  

  His 
  G. 
  tartaricus 
  is 
  evidently 
  P. 
  migratorius. 
  and 
  his 
  G. 
  migratorius 
  the 
  

   <J. 
  italic 
  us. 
  

  

  Niebuhr 
  and 
  Forskal 
  speak 
  of 
  two 
  migratory 
  species 
  being 
  found 
  in 
  

   Arabia, 
  Persia, 
  and 
  Syria, 
  one 
  of 
  which, 
  judging 
  from 
  their 
  notices, 
  is 
  

   certainly 
  A. 
  peregrinum, 
  which 
  prevails 
  almost 
  to 
  the 
  exclusion 
  of 
  the 
  

   others 
  in 
  Arabia 
  and 
  Southern 
  Persia. 
  

  

  Palgrave 
  notices 
  the 
  distinction 
  between 
  the 
  species 
  found 
  in 
  the 
  

   south 
  and 
  north 
  part 
  of 
  this 
  region. 
  Burkhardt 
  mentions 
  the 
  fact 
  of 
  

   there 
  being 
  more 
  than 
  one 
  species. 
  It 
  is 
  now 
  also 
  well 
  knowD, 
  as 
  as- 
  

   serted 
  by 
  Eev. 
  William 
  Houghton, 
  in 
  the 
  able 
  article 
  " 
  Locust," 
  in 
  Smith's 
  

   Bible 
  Dictionary, 
  that 
  both 
  P. 
  migratorius 
  and 
  A. 
  peregrinum 
  occur 
  in 
  

   Syria, 
  Arabia 
  &c, 
  bujb 
  we 
  are 
  inclined 
  to 
  think 
  the 
  former 
  comparatively 
  

   rare 
  in 
  Central 
  and 
  Southern 
  Arabia. 
  

  

  From 
  these 
  notices, 
  which 
  might 
  be 
  multiplied, 
  it 
  is 
  evident, 
  notwith- 
  

   standing 
  the 
  confusion 
  and 
  manifest 
  errors, 
  that 
  more 
  than 
  one 
  species 
  

   of 
  migratory 
  locusts 
  visit 
  this 
  southern 
  portion 
  of 
  Asia, 
  or 
  meeting- 
  

   point 
  of 
  the 
  three 
  faunal 
  subregions. 
  This 
  is 
  precisely 
  what 
  was 
  to 
  be 
  

   expected 
  upon 
  the 
  theory 
  we 
  are 
  presenting 
  in 
  reference 
  to 
  the 
  distri- 
  

   bution 
  of 
  the 
  three 
  principal 
  migratory 
  species. 
  Nor 
  should 
  the 
  fact 
  be 
  

   overlooked 
  that 
  the 
  southern 
  district 
  of 
  Wallace's 
  Mediterranean 
  sub- 
  

   region 
  extends 
  eastward 
  to 
  the 
  confines 
  of 
  India, 
  where, 
  as 
  we 
  have 
  seen, 
  

   it 
  is 
  probable 
  that 
  A. 
  peregrinum 
  is 
  the 
  migratory 
  species. 
  The 
  reader 
  

   will 
  also 
  note 
  the 
  close 
  agreement 
  of 
  Major 
  Moore's 
  and 
  Salt's 
  state- 
  

   ments 
  with 
  this 
  theory. 
  

  

  It 
  would 
  be 
  interesting 
  to 
  extend 
  this 
  examination 
  to 
  the 
  locusts 
  of 
  

   the 
  southern 
  hemisphere, 
  but 
  this 
  would 
  require 
  more 
  space 
  than 
  we 
  

   can 
  devote 
  to 
  these 
  collateral 
  points 
  ; 
  moreover, 
  our 
  data 
  are 
  not 
  sufficient 
  

   to 
  render 
  such 
  an 
  examination 
  satisfactory. 
  Let 
  it 
  suffice 
  for 
  us 
  to 
  state 
  

   that 
  from 
  the 
  meager 
  data 
  we 
  have 
  been 
  able 
  to 
  obtain 
  we 
  are 
  led 
  to 
  

   believe 
  that 
  the 
  Australian 
  and 
  New 
  Zealand 
  locust 
  or 
  locusts 
  (if 
  dis- 
  

   tinct) 
  are 
  CEdipodsean 
  and 
  somewhat 
  closely 
  allied 
  to 
  P. 
  migratorius; 
  

   that 
  the 
  one 
  which 
  devastates 
  Southern 
  Africa 
  is 
  possibly 
  A. 
  peregrinum 
  

   or 
  some 
  other 
  species 
  of 
  Acridium 
  ; 
  that 
  there 
  is 
  probably 
  but 
  one 
  mi- 
  

   grating 
  species 
  of 
  South 
  America, 
  A. 
  paranense, 
  which 
  is 
  closely 
  allied 
  

   to 
  A. 
  americanum. 
  If 
  we 
  are 
  correct 
  in 
  these 
  conclusions, 
  we 
  are 
  justi- 
  

   fied 
  in 
  stating, 
  in 
  general 
  terms, 
  that 
  each 
  species 
  of 
  migratory 
  locust 
  

   is 
  confined, 
  in 
  its 
  permanent 
  distribution, 
  to 
  its 
  own 
  faunal 
  region 
  or 
  

  

  