﻿30 
  Mr. 
  R. 
  S. 
  Bagnall 
  on 
  new 
  Thysanoptera. 
  

  

  clavate, 
  6 
  with 
  apex 
  rather 
  broadly 
  truncate^ 
  and 
  7 
  and 
  8 
  

   broadly 
  united. 
  

  

  Prothorax 
  about 
  2*3 
  times 
  as 
  broad 
  as 
  long- 
  ; 
  bristles 
  at 
  

   hind-angles 
  and 
  the 
  postero-marginal 
  pair 
  present, 
  the 
  first- 
  

   named 
  long, 
  about 
  0*5 
  as 
  long 
  as 
  prothorax. 
  Pterothorax 
  

   transverse, 
  about 
  1'25 
  times 
  as 
  broad 
  as 
  long. 
  Legs 
  rather 
  

   stout 
  and 
  long 
  ; 
  each 
  intermediate 
  and 
  hind-femur 
  with 
  a 
  

   short 
  stout 
  seta 
  on 
  the 
  outer 
  margin 
  beyond 
  middle. 
  Wings 
  

   absent. 
  

  

  Abdomen 
  elongate-ovate, 
  0"65 
  the 
  total 
  length 
  of 
  the 
  

   insect, 
  broadest 
  at 
  about 
  fifth 
  segment, 
  where 
  it 
  is 
  I"-! 
  times 
  

   as 
  broad 
  as 
  the 
  mesothorax. 
  

  

  Tube 
  stout, 
  about 
  0*8 
  as 
  long 
  as 
  the 
  head, 
  1'75 
  times 
  as 
  

   long 
  as 
  broad 
  at 
  base 
  and 
  less 
  than 
  0*5 
  as 
  broad 
  at 
  apex 
  

   as 
  at 
  base; 
  terminal 
  hairs 
  short 
  and 
  weak^ 
  not 
  quite 
  0*6 
  as 
  

   long 
  as 
  the 
  tube. 
  Lateral 
  abdominal 
  bristles 
  not 
  long, 
  but 
  

   noticeably 
  strong, 
  especially 
  those 
  on 
  segments 
  7-9. 
  

  

  Type. 
  In 
  Hope 
  Collections, 
  University 
  Museum, 
  Oxford. 
  

  

  Hah. 
  Japan 
  : 
  Okinawa, 
  Luchu 
  Is., 
  1 
  ? 
  collected 
  by 
  Mr. 
  

   J. 
  E. 
  A. 
  Lewis. 
  

  

  Trichothrips 
  hivis'i, 
  sp. 
  n. 
  

  

  ^ 
  . 
  — 
  Length 
  about 
  I'iS, 
  breadth 
  of 
  mesothorax 
  0*285 
  ram. 
  

  

  Colour 
  lemon-yellow, 
  antennae 
  very 
  lightly 
  tinged 
  with 
  

   grey 
  ; 
  first 
  two 
  antennal 
  joints, 
  frons 
  and 
  cheeks^ 
  distal 
  half 
  

   of 
  mesothorax, 
  sides 
  of 
  pterothorax, 
  first 
  abdominal 
  segment, 
  

   and 
  the 
  anterior 
  corners 
  of 
  segments 
  2-8 
  shaded 
  with 
  grey- 
  

   brown. 
  

  

  Head 
  I'l 
  times 
  as 
  long 
  as 
  broad 
  and 
  1*3 
  as 
  long 
  as 
  the 
  

   prothorax. 
  Cheeks 
  constricted 
  behind 
  eyes 
  and 
  near 
  base. 
  

   Eyes 
  prominent, 
  occupying 
  0'35 
  the 
  length 
  of 
  the 
  head, 
  

   widely 
  separated. 
  Ocelli 
  rather 
  large, 
  posterior 
  ones 
  well 
  

   apart 
  from 
  inner 
  margins 
  of 
  the 
  eyes. 
  Postocular 
  bristles 
  

   long 
  and 
  slender 
  ; 
  interocular 
  pair 
  rather 
  short. 
  Mouth-cone 
  

   blunt, 
  broadly 
  rounded 
  at 
  apex, 
  reaching 
  a 
  little 
  more 
  than 
  

   halfway 
  across 
  prosternum. 
  Antennaj 
  twice 
  as 
  long 
  as 
  tiie 
  

   head 
  ; 
  relative 
  lengths 
  of 
  joints 
  as 
  follows 
  : 
  — 
  13 
  : 
  14 
  : 
  20 
  : 
  

   16 
  : 
  16 
  : 
  16 
  : 
  13"5 
  : 
  16; 
  apical 
  joint 
  narrowly 
  pyriforra. 
  

  

  Prothorax 
  trapezoidal, 
  twice 
  as 
  broad 
  across 
  hind-angles 
  

   as 
  long, 
  with 
  a 
  distinct 
  median 
  line 
  ; 
  mid-lateral, 
  postero- 
  

   marginal 
  bristles, 
  and 
  pair 
  at 
  hind-angles 
  present, 
  long 
  and 
  

   slender, 
  the 
  postero-marginal 
  pair 
  tiie 
  longest, 
  Pterothorax 
  

   about 
  as 
  long 
  as 
  broad 
  ; 
  wings 
  reduced^ 
  narrow 
  and 
  vestigial 
  

   in 
  character, 
  reaching 
  to 
  hind-margin 
  of 
  first 
  abdominal 
  

   segment. 
  Legs 
  moderately 
  long 
  and 
  stout 
  ; 
  fore-femur 
  

  

  