﻿DESCRIPTION. 
  

  

  9 
  

  

  t 
  /trips. 
  The 
  habits 
  of 
  the 
  larva 
  are 
  also 
  quite 
  characteristic 
  of 
  this 
  

   genus, 
  for 
  the 
  habits 
  of 
  the 
  larvae 
  of 
  the 
  greenhouse 
  thrips 
  (Helio- 
  

   thrips 
  hcemorrhoidalis 
  Bouche) 
  and 
  of 
  Heliothrips 
  rubrocinctus 
  

   Giard 
  are 
  almost 
  identical 
  with 
  those 
  of 
  the 
  present 
  species. 
  

  

  THE 
  ADULT 
  FEMALE. 
  

  

  The 
  adult 
  female 
  (fig. 
  2) 
  is 
  about 
  one-twenty-fourth 
  of 
  an 
  inch 
  

   in 
  length 
  (0.9815 
  mm. 
  to 
  1.1174 
  mm.; 
  average, 
  1.0405 
  mm.) 
  and 
  

   about 
  one-fourth 
  as 
  wide 
  as 
  long 
  (0.22G5 
  mm. 
  to 
  0.2869 
  mm.; 
  average 
  

  

  {Heliothrips 
  faaciatus) 
  : 
  a, 
  

   iame 
  ; 
  c. 
  antcnnsi 
  of 
  same. 
  

  

  Adult 
  female 
  ; 
  b, 
  ventral 
  side 
  of 
  

   a. 
  Greatly 
  enlarged; 
  b, 
  c, 
  more 
  

  

  Pig. 
  2.— 
  The 
  bean 
  thrips 
  

   abdominal 
  segment 
  of 
  

   enlarged. 
  (Original.) 
  

  

  width. 
  0.2520 
  nun.) 
  and 
  is 
  fusiform 
  in 
  shape. 
  The 
  head 
  and 
  body 
  

   are 
  black 
  and, 
  under 
  the 
  microscope, 
  are 
  seen 
  to 
  be 
  covered 
  with 
  

   distinct 
  reticulations 
  and 
  short 
  white 
  hairs. 
  The 
  antennae 
  are 
  8- 
  

   segmented 
  and 
  two 
  and 
  one-half 
  times 
  as 
  long 
  as 
  the 
  head, 
  and 
  arc 
  

   held 
  out 
  in 
  front 
  of 
  the 
  body. 
  They 
  are 
  black, 
  more 
  or 
  less 
  banded 
  

   with 
  white, 
  and 
  bear 
  white 
  hairs. 
  The 
  wings 
  are 
  held 
  folded 
  to- 
  

   gether 
  clown 
  the 
  middle 
  of 
  the 
  dorsum; 
  they 
  are 
  black, 
  crossed 
  by 
  

   a 
  white 
  baud 
  at 
  the 
  base 
  and 
  a 
  white 
  band 
  at 
  three-fourths 
  the 
  dis- 
  

   tance 
  from 
  the 
  base. 
  The 
  wings 
  are 
  fringed 
  with 
  long 
  white 
  hairs. 
  

   The 
  legs 
  are 
  black, 
  banded 
  with 
  white' 
  

  

  i 
  For 
  ;> 
  detailed 
  description 
  <>r 
  Hn- 
  genus 
  and 
  the 
  Bpecies 
  f«>r 
  use 
  <>t" 
  systematlsts, 
  see 
  

   Hinds's 
  "Monograph 
  of 
  the 
  Thysanoptera 
  " 
  (Proc. 
  r. 
  s. 
  Nat 
  Mus., 
  vol. 
  26, 
  1902), 
  pp 
  

  

  17 
  1 
  ITT,. 
  

  

  51097 
  — 
  Bull. 
  IIS- 
  12 
  2 
  

  

  