﻿28 
  Mr. 
  R. 
  S. 
  Bagnall 
  on 
  new 
  Thysanoptera. 
  

  

  clieeks 
  dark 
  greyish-brown. 
  All 
  legs 
  (excepting 
  coxse) 
  

   yellow. 
  Antennae 
  with 
  joints 
  I 
  and 
  2 
  dark 
  brown, 
  the 
  latter 
  

   lighter 
  apically 
  ; 
  3 
  and 
  5 
  yellow, 
  with 
  very 
  faint 
  tinge 
  of 
  grey 
  

   distally; 
  4 
  yellow, 
  grey-brown 
  near 
  apex; 
  6 
  yellow, 
  dis- 
  

   tinctly 
  tinged 
  with 
  grey 
  di.stally 
  ; 
  and 
  7 
  and 
  8 
  light 
  grey- 
  

   brown. 
  

  

  Head 
  approximately 
  1"2 
  times 
  longer 
  than 
  broad 
  and 
  1*5 
  

   times 
  as 
  long 
  as 
  the 
  prothorax, 
  sides 
  parallel. 
  Mouth-cone 
  

   exceptionally 
  short, 
  maxillary 
  palpi 
  with 
  second 
  joint 
  very 
  

   long. 
  Antennse 
  1*55 
  times 
  as 
  long 
  as 
  the 
  head, 
  joints 
  3 
  and 
  

   4 
  much 
  broader 
  than 
  any 
  of 
  the 
  otliers. 
  llelative 
  lengths 
  of 
  

   joints 
  approximately 
  :— 
  12 
  : 
  18 
  : 
  22 
  : 
  22 
  : 
  10 
  : 
  18 
  : 
  17 
  : 
  12. 
  

  

  Prothorax 
  transverse, 
  about 
  twice 
  as 
  broad 
  as 
  long 
  ; 
  bristles 
  

   at 
  posterior 
  and 
  anterior 
  angles, 
  and 
  the 
  mid-lateral 
  and 
  

   postero-marginal 
  pairs 
  present. 
  The 
  postero-marginal 
  pair 
  

   and 
  those 
  at 
  posterior 
  angles 
  long, 
  the 
  latter 
  0*6 
  as 
  long 
  

   as 
  the 
  prothoiax. 
  Pteroihorax 
  transverse. 
  Fore-femora 
  

   strongly 
  incrassate, 
  with 
  a 
  stout, 
  blunt, 
  tooth-like 
  projection 
  

   at 
  the 
  base 
  within, 
  the 
  inner 
  margin 
  straight 
  and 
  set 
  with 
  a 
  

   few 
  very 
  minute 
  " 
  teeth." 
  Fore-tarsus 
  set 
  with 
  a 
  stout, 
  

   sharp, 
  curved 
  tooth. 
  

  

  Wings 
  practically 
  clear, 
  rather 
  broad 
  ; 
  fore-wings 
  appa- 
  

   rently 
  not 
  constricted 
  as 
  in 
  Haplothrips, 
  with 
  8-11 
  duplicated 
  

   cilia. 
  

  

  Abdomen 
  about 
  as 
  broad 
  as 
  the 
  pterothorax, 
  elongate, 
  

   narrowing 
  evenly 
  from 
  sixth 
  segment 
  to 
  base 
  of 
  tube. 
  Tube 
  

   0"6 
  the 
  length 
  of 
  head, 
  about 
  twice 
  as 
  long 
  as 
  broad 
  at 
  base, 
  

   and 
  twice 
  as 
  broad 
  at 
  base 
  as 
  at 
  apex. 
  Terminal 
  hairs 
  lon,i>er 
  

   than 
  tube, 
  but 
  very 
  slender 
  (and 
  difficult 
  to 
  see) 
  distally, 
  

   colourless, 
  except 
  near 
  base. 
  Lateral 
  abdominal 
  bristles 
  long 
  

   and 
  slender, 
  faintly 
  knobbed 
  ; 
  none 
  so 
  long 
  as 
  the 
  tube. 
  

  

  Type. 
  In 
  the 
  British 
  Museum 
  of 
  Natural 
  History. 
  

  

  Hah. 
  Ceylon 
  : 
  Peradeniya, 
  1 
  ^ 
  taken 
  by 
  Mr. 
  A. 
  

   Rutherford 
  from 
  Memcxylon 
  iin:heUa(itm, 
  28. 
  6. 
  13 
  (Entomo- 
  

   logical 
  Research 
  Committee). 
  

  

  Gynaikothrips 
  karnyi^, 
  sp. 
  n. 
  

  

  Length 
  I'D, 
  breadth 
  of 
  mesothorax 
  0'42 
  mm. 
  

  

  Colour 
  deep 
  blackish-brown, 
  thorax 
  and 
  distal 
  half 
  of 
  tube 
  

   not 
  quite 
  so 
  dark 
  ; 
  all 
  tibiae 
  and 
  tarsi 
  light 
  lemon-yellow, 
  

   and 
  antennal 
  joints 
  3-3 
  lemon- 
  to 
  golden-y.dlow. 
  

  

  Head 
  about 
  1"42 
  times 
  as 
  long 
  as 
  broad 
  and 
  practically 
  

  

  * 
  Named 
  in 
  honour 
  of 
  Dr. 
  II. 
  Karny, 
  who 
  has 
  done 
  so 
  much 
  work 
  on 
  

   gan-thrip.s. 
  

  

  