﻿ORIGIN 
  AND 
  DISTRIBUTION. 
  

  

  15 
  

  

  road 
  track 
  and 
  collected 
  both 
  larval 
  and 
  adult 
  forms 
  of 
  the 
  bean 
  

   thrips 
  upon 
  this 
  plant. 
  

  

  Mr. 
  A. 
  C. 
  Morgan, 
  of 
  this 
  bureau, 
  recently 
  reported 
  to 
  the 
  writer 
  

   that 
  he 
  had 
  collected 
  the 
  species 
  on 
  October 
  10, 
  1910, 
  at 
  Clarksville, 
  

   Tenn. 
  The 
  fact 
  that 
  this 
  insect 
  is 
  so 
  widely 
  distributed 
  in 
  all 
  parts 
  

   of 
  California 
  seems 
  to 
  point 
  strongly 
  to 
  that 
  State 
  as 
  its 
  original 
  

   home. 
  This 
  is 
  also 
  strongly 
  supported 
  by 
  the 
  fact 
  that 
  Moulton 
  

   collected 
  it 
  from 
  wild 
  vetch 
  in 
  the 
  Santa 
  Cruz 
  Mountains 
  and 
  that 
  

   the 
  writer 
  collected 
  it 
  in 
  wild, 
  uncultivated 
  tracts 
  in 
  the 
  mountains 
  

   and 
  canyons 
  north 
  of 
  Los 
  Angeles, 
  5 
  and 
  6 
  miles 
  from 
  cultivated 
  

   crops. 
  This 
  point 
  of 
  view 
  is 
  further 
  strengthened, 
  because 
  the 
  au- 
  

   thor 
  has 
  found 
  this 
  insect 
  feeding 
  on 
  more 
  than 
  20 
  native 
  wild 
  

   plants. 
  

  

  Fig. 
  8. 
  — 
  Map 
  showing 
  present 
  known 
  distribution 
  of 
  the 
  bean 
  thrips 
  (Ifeliothrips 
  fasciatus). 
  

  

  (Original.) 
  

  

  Mr. 
  J. 
  D. 
  Hood, 
  formerly 
  of 
  the 
  office 
  of 
  the 
  State 
  entomologist 
  

   of 
  Illinois, 
  recently 
  informed 
  the 
  writer 
  that 
  he 
  possessed 
  specimens 
  

   of 
  this 
  thrips 
  that 
  were 
  collected 
  by 
  Prof. 
  Lawrence 
  Bruner 
  at 
  

   Lincoln, 
  Nebr., 
  February 
  11, 
  1899, 
  and 
  that 
  he 
  had 
  collected 
  this 
  

   same 
  species 
  at 
  Urbana, 
  111., 
  in 
  March, 
  1907. 
  In 
  both 
  cases 
  the 
  

   thrips 
  were 
  taken 
  on 
  California 
  oranges 
  and 
  had 
  evidently 
  been 
  cur- 
  

   ried 
  across 
  the 
  country 
  while 
  hibernating 
  in 
  the 
  navel 
  end 
  of 
  the 
  

   fruit. 
  This 
  is 
  an 
  excellent 
  illustration 
  of 
  how 
  this 
  insect 
  may 
  be 
  

   distributed 
  through 
  the 
  agency 
  of 
  man. 
  

  

  Although 
  this 
  insect 
  is 
  quite 
  minute 
  and 
  has 
  been 
  little 
  studied. 
  

   at 
  the 
  present 
  time 
  it 
  is 
  known 
  to 
  occur 
  through 
  the 
  entire 
  State 
  of 
  

   California, 
  in 
  several 
  places 
  in 
  Arizona, 
  in 
  Nevada, 
  and 
  in 
  Idaho 
  

   Dear 
  the 
  ^Vashington 
  State 
  line. 
  It 
  has 
  also 
  been 
  found 
  in 
  one 
  

   locality 
  in 
  Tennessee. 
  Figure 
  8 
  lias 
  been 
  prepared 
  (o 
  show 
  the 
  

   prpser.t 
  definite 
  localities 
  where 
  this 
  insect 
  has 
  been 
  observed. 
  

  

  