﻿26 
  Mr. 
  R. 
  S. 
  Bagnall 
  on 
  new 
  Thysanoptera. 
  

  

  base 
  of 
  4 
  lig-ht 
  lemon-yellow 
  ; 
  2 
  and 
  4 
  to 
  7 
  brown, 
  2 
  some- 
  

   times 
  ligliter 
  distall3^ 
  Fore-wings 
  smokj-brown, 
  basal 
  

   fourth 
  liglit. 
  

  

  Head 
  almost 
  as 
  in 
  Iiololeticus, 
  about 
  1*25 
  times 
  as 
  broad 
  as 
  

   long, 
  and 
  about 
  as 
  long 
  as 
  the 
  protliorax. 
  Eyes 
  as 
  in 
  holo- 
  

   leucus, 
  pigmentation 
  deep 
  purplish-black 
  ; 
  ocelli 
  with 
  crimson 
  

   crescentic 
  pigmentation. 
  Mouth-cone 
  not 
  quite 
  reaching 
  

   across 
  prosternum 
  ; 
  maxillary 
  palpi 
  long, 
  with 
  middle 
  joint 
  

   the 
  shortest 
  ; 
  labial 
  palpi 
  long 
  and 
  slender. 
  Antennae 
  about 
  

   2*3 
  limes 
  as 
  long 
  as 
  the 
  head; 
  relative 
  leiigtlis 
  of 
  joints 
  ap- 
  

   proximately: 
  — 
  7 
  : 
  12 
  : 
  17 
  : 
  16 
  : 
  12 
  : 
  17 
  : 
  5 
  — 
  2 
  broader 
  than 
  

   any 
  of 
  tiie 
  following, 
  o 
  pedicellate, 
  and 
  5 
  and 
  6 
  lather 
  

   broadly 
  jointed. 
  

  

  Prothorax 
  1'5 
  times 
  as 
  long 
  as 
  broad, 
  with 
  setge 
  as 
  in 
  

   hololeucus, 
  dorsal 
  surface 
  not 
  striated. 
  Pterothorax 
  about 
  as 
  

   broad 
  as 
  long. 
  Legs 
  as 
  in 
  hololeucus, 
  hind-tibiae 
  shorter, 
  

   with 
  a 
  series 
  of 
  siiort 
  setse 
  on 
  the 
  distal 
  lialf 
  within. 
  Wings 
  

   reaching 
  to 
  the 
  ninth 
  abdominal 
  segment, 
  fore-wings 
  about 
  

   15 
  times 
  as 
  long 
  as 
  broad 
  across 
  middle. 
  Veins 
  of 
  fore-winor 
  

   not 
  distinct, 
  upper 
  vein 
  with 
  3 
  widely-spaced 
  setse 
  in 
  distal 
  

   half 
  ; 
  lower 
  vein 
  with 
  a 
  series 
  of 
  1-1 
  and 
  costa 
  26 
  to 
  30 
  seta\ 
  

   C;ilia 
  as 
  in 
  hololeucus. 
  Hind-wing 
  with 
  a 
  dark 
  median 
  vein 
  

   to 
  apex. 
  

  

  Abdomen 
  ovate 
  or, 
  when 
  segments 
  are 
  fully 
  extended, 
  

   elongate-ovate, 
  apically 
  rather 
  sharply 
  nai 
  rowed 
  and 
  pointed. 
  

   Eighth 
  tergite 
  very 
  finely 
  fringed. 
  Terminal 
  bristles 
  long, 
  

   ninth 
  segment 
  with 
  a 
  pair 
  of 
  short 
  widely-separated 
  bristles 
  

   (0*3 
  to 
  0*4 
  the 
  length 
  of 
  the 
  long 
  ones), 
  which 
  are 
  inwardly 
  

   directed 
  distally. 
  Lateral 
  abdominal 
  bristles 
  somewhat 
  long. 
  

  

  Also 
  a 
  distinctive 
  species. 
  

  

  Tijpe. 
  In 
  Hope 
  Collections, 
  Universlt}^ 
  Museum, 
  Oxford. 
  

   Hab. 
  Japan 
  : 
  Okinawa, 
  Luchu 
  Is., 
  on 
  nasturtium, 
  May, 
  

   and 
  at 
  Kobe, 
  with 
  T. 
  hololeucus, 
  sp. 
  n., 
  July 
  1913 
  (J. 
  E. 
  A. 
  

  

  Lewis) 
  . 
  

  

  Suborder 
  T 
  U 
  B 
  U 
  L 
  I 
  F 
  E 
  ii 
  A. 
  

  

  Docessissophothn'ps 
  frontalis, 
  sp. 
  n. 
  

  

  Length 
  about 
  5'5 
  mm. 
  

  

  Colour 
  deep 
  blackish-brown 
  ; 
  fore-tibia? 
  light 
  yellowish- 
  

   brown, 
  all 
  tarsi 
  dark 
  yellowish-brown 
  ; 
  wings 
  smoky-brown, 
  

   cilia 
  darker. 
  Antennae 
  absent 
  in 
  the 
  unique 
  example. 
  

  

  Head 
  twice 
  as 
  long 
  as 
  broad, 
  almost 
  as 
  in 
  D. 
  major, 
  Bagn., 
  

   but 
  with 
  the 
  vertex 
  produced 
  into 
  a 
  prominent 
  hump, 
  with 
  

  

  