﻿14 
  THE 
  BEAN 
  THEIPS. 
  

  

  found 
  that 
  the 
  different 
  stages 
  in 
  the 
  Imperial 
  Valley 
  lacked 
  the 
  red 
  

   markings 
  except 
  in 
  the 
  cooler 
  weather 
  of 
  the 
  late 
  fall. 
  

  

  ORIGIN 
  AND 
  DISTRIBUTION. 
  

  

  This 
  insect 
  was 
  first 
  described 
  by 
  Mr. 
  Theodore 
  Pergande 
  from 
  

   specimens 
  taken 
  in 
  Yuba 
  County, 
  Cal. 
  A 
  few 
  years 
  later 
  he 
  identi- 
  

   fied 
  a 
  thrips 
  from 
  Lewiston, 
  Idaho, 
  as 
  this 
  same 
  species. 
  

  

  Mr. 
  Dudley 
  Moulton 
  reported 
  that 
  this 
  species 
  had 
  been 
  collected 
  

   in 
  Colusa 
  County 
  by 
  Mr. 
  E. 
  K. 
  Carnes, 
  in 
  Santa 
  Rosa 
  County 
  by 
  

   Mr. 
  O. 
  E. 
  Bremner, 
  and 
  in 
  the 
  Santa 
  Cruz 
  Mountains, 
  Santa 
  Clara 
  

   County, 
  by 
  himself. 
  Mr. 
  D. 
  L. 
  Crawford 
  recorded 
  fasciatus 
  from 
  

   Santa 
  Paula, 
  Ventura 
  County, 
  Cal., 
  and 
  from 
  Claremont 
  and 
  Chino, 
  

   Cal. 
  Mr. 
  William 
  B. 
  Parker, 
  of 
  this 
  bureau, 
  collected 
  it 
  at 
  Davis 
  and 
  

   Hamilton 
  City, 
  Cal. 
  Mr. 
  P. 
  R. 
  Jones, 
  engaged 
  in 
  pear 
  thrips 
  in- 
  

   vestigations, 
  reports 
  that 
  this 
  insect 
  occurs 
  very 
  commonly 
  around 
  

   Lindsay 
  and 
  San 
  Jose, 
  Cal. 
  Mr. 
  S. 
  W. 
  Foster, 
  while 
  engaged 
  in 
  the 
  

   same 
  investigation, 
  collected 
  this 
  insect 
  from 
  Martinez, 
  Cal., 
  and 
  later 
  

   found 
  it 
  " 
  frequently 
  throughout 
  Contra 
  Costa 
  County." 
  

  

  Mr. 
  V. 
  L. 
  Wildermuth, 
  engaged 
  in 
  cereal 
  and 
  forage 
  insect 
  in- 
  

   vestigations, 
  has 
  collected 
  this 
  insect 
  in 
  California 
  at 
  Indio, 
  River- 
  

   side 
  County, 
  and 
  at 
  Bard, 
  El 
  Centro, 
  and 
  Holtville, 
  Imperial 
  County, 
  

   and 
  in 
  Arizona 
  at 
  Yuma, 
  Yuma 
  County, 
  Buckeye 
  and 
  Tempe, 
  Mari- 
  

   copa 
  County, 
  and 
  Sacaton, 
  Pinal 
  County. 
  

  

  During 
  the 
  present 
  investigation 
  the 
  writer 
  has 
  collected 
  this 
  insect 
  

   quite 
  extensively 
  from 
  many 
  places 
  in 
  southern 
  California. 
  In 
  1910 
  

   it 
  was 
  found 
  to 
  be 
  very 
  abundant 
  on 
  wild 
  lettuce 
  in 
  several 
  yards 
  

   and 
  alleys 
  in 
  the 
  city 
  of 
  Los 
  Angeles 
  itself. 
  At 
  various 
  times 
  it 
  

   has 
  been 
  collected 
  from 
  Bell, 
  Compton, 
  Gardena, 
  Glendale, 
  Holly- 
  

   wood, 
  Laurel 
  Canyon, 
  Puente, 
  San 
  Gabriel, 
  Sierra 
  Madre, 
  Tropico, 
  

   and 
  Whittier, 
  in 
  Los 
  Angeles 
  County. 
  In 
  Laurel 
  Canyon 
  the 
  author 
  

   found 
  it 
  feeding 
  on 
  wild 
  food 
  plants 
  in 
  uncleared 
  land 
  about 
  6 
  miles 
  

   from 
  cultivated 
  fields. 
  It 
  was 
  also 
  collected 
  near 
  the 
  entrance 
  of 
  the 
  

   canyon, 
  scattered 
  over 
  the 
  mountain 
  sides 
  on 
  various 
  wild 
  plants. 
  At 
  

   Sierra 
  Maclre 
  it 
  was 
  taken 
  at 
  an 
  elevation 
  of 
  750 
  feet. 
  

  

  It 
  was 
  also 
  collected 
  at 
  Garden 
  Grove, 
  Huntington 
  Beach, 
  Smelt- 
  

   zer, 
  and 
  Sunset 
  Beach, 
  in 
  Orange 
  County, 
  Cal. 
  While 
  on 
  a 
  trip 
  in 
  

   October, 
  1910, 
  the 
  author 
  found 
  this 
  insect 
  to 
  be 
  generally 
  distributed 
  

   throughout 
  the 
  town 
  of 
  Oxnard, 
  and 
  in 
  Montalvo 
  and 
  the 
  entire 
  

   outlying 
  sugar-beet 
  district 
  of 
  Ventura 
  County. 
  

  

  In 
  February, 
  1911, 
  the 
  author 
  made 
  a 
  trip 
  to 
  San 
  Diego 
  to 
  investi- 
  

   gate 
  the 
  conditions 
  in 
  reference 
  to 
  truck 
  crops 
  there, 
  and 
  in 
  Mission 
  

   Valley 
  — 
  a 
  long, 
  narrow, 
  and 
  fertile 
  valley 
  lying 
  to 
  the 
  north 
  of 
  San 
  

   Diego, 
  and 
  devoted 
  to 
  truck 
  crops 
  — 
  this 
  insect 
  was 
  found 
  feeding 
  to 
  

   some 
  extent 
  on 
  pea 
  vines. 
  The 
  writer 
  left 
  California 
  for 
  Washing- 
  

   ton, 
  D. 
  C, 
  in 
  September, 
  1911, 
  and 
  while 
  delayed 
  at 
  Sparks, 
  Nev., 
  

   he 
  examined 
  several 
  clumps 
  of 
  wild 
  lettuce 
  growing 
  along 
  the 
  rail- 
  

  

  