﻿Mr. 
  R. 
  S. 
  Bagnall 
  on 
  new 
  Thysanoptera. 
  291 
  

  

  Protliorax 
  witli 
  tlie 
  bristles 
  at 
  angles 
  set 
  on 
  wart?, 
  the 
  

   front 
  pair 
  set 
  directly 
  forward. 
  Fore-femur 
  not 
  strongly 
  

   incrassate, 
  with 
  a 
  few 
  long 
  colourless 
  and 
  faintly 
  knobbed 
  

   bristles. 
  Fore-tibi^ 
  yellowish-red 
  ; 
  intermediate 
  tibipe 
  

   shaded 
  to 
  yellow 
  distally 
  and 
  hind-tibia3 
  yellow 
  at 
  knee 
  

   and 
  distal 
  half. 
  

  

  Abdomen 
  long 
  and 
  slender 
  ; 
  tube 
  0"9 
  the 
  length 
  of 
  head 
  ; 
  

   bristles 
  on 
  segment 
  9 
  about 
  0*6 
  the 
  length 
  of 
  tube. 
  

  

  I 
  have 
  not 
  yet 
  had 
  the 
  opportunity 
  of 
  re-examining 
  the 
  

   type 
  of 
  Mecynothrips 
  simplex, 
  Bagn. 
  (in 
  the 
  British 
  Museum), 
  

   which 
  I 
  think 
  will 
  fall 
  into 
  this 
  genus. 
  M. 
  simplex 
  has 
  the 
  

   fore-femora 
  strongly 
  inflated, 
  shining, 
  sparingly 
  setose, 
  and 
  

   armed 
  with 
  a 
  short 
  tooth 
  at 
  apex 
  within, 
  and 
  the 
  tube 
  is 
  

   shorter 
  in 
  comparison 
  with 
  the 
  length 
  of 
  head. 
  

  

  Type. 
  In 
  Hope 
  Collections, 
  University 
  Museum, 
  Oxford, 
  

   TIab. 
  Ceylon 
  : 
  Peradeniya, 
  two 
  examples, 
  almost 
  certainly 
  

   males, 
  swept 
  from 
  bushes 
  {E. 
  E. 
  Green, 
  '^o. 
  2961). 
  They 
  

   were 
  in 
  association 
  with 
  Ecacanthothrips 
  sanguineus, 
  Bagn. 
  

  

  Family 
  Megathripidae. 
  

   Siphonothrips 
  hrevis^ 
  sp. 
  n. 
  

  

  ^ 
  . 
  — 
  Forma 
  aptera. 
  

  

  Length 
  2'1, 
  breadth 
  of 
  mesothorax 
  about 
  0'38 
  mm. 
  

  

  General 
  colour 
  dark 
  black-brown, 
  abdomen 
  darker 
  than 
  

   the 
  head 
  and 
  prothorax. 
  All 
  femora 
  brown, 
  the 
  inter- 
  

   mediate 
  and 
  posterior 
  pairs 
  light 
  yellowish-white 
  basally, 
  

   and 
  lighter 
  at 
  extreme 
  base; 
  all 
  tibiae 
  yellow, 
  tarsi 
  also 
  

   yellow 
  with 
  a 
  dark 
  patch 
  on 
  second 
  joint. 
  Antennae 
  with 
  

   first 
  two 
  joints 
  dark 
  brown 
  ; 
  second 
  lighter 
  apically 
  ; 
  3 
  yellow, 
  

   lightly 
  tinged 
  with 
  brown 
  near 
  apex 
  ; 
  4 
  yellow, 
  apical 
  fourth 
  

   brown 
  ; 
  5 
  brown, 
  with 
  basal 
  half 
  yellow 
  (6 
  to 
  8 
  broktn 
  off 
  in 
  

   type-specimen, 
  7 
  and 
  8 
  at 
  least 
  presumably 
  totally 
  brown). 
  

  

  Head 
  1"8 
  times 
  as 
  long 
  as 
  broad 
  across 
  eyes, 
  2*8 
  times 
  as 
  

   long 
  as 
  the 
  prothorax, 
  but 
  only 
  very 
  slightly 
  (0"08) 
  longer 
  

   than 
  the 
  tube. 
  Cheeks 
  very 
  slightly 
  incurved 
  behind 
  eyes 
  

   and 
  thence 
  gently 
  ai-cuate 
  to 
  base 
  ; 
  a 
  few 
  minute 
  genal 
  

   spines. 
  Vertex 
  slightly 
  produced 
  beyond 
  eyes, 
  witii 
  a 
  pair 
  

   of 
  rather 
  long 
  bristles, 
  which 
  do 
  not 
  reach 
  to 
  apex 
  of 
  first 
  

   antenna] 
  joint. 
  Eyes 
  small, 
  occupying 
  laterally 
  0*2 
  the 
  

   length 
  of 
  the 
  head, 
  finely 
  facetted; 
  ocelli 
  minute. 
  Mouth- 
  

   cone 
  reaching 
  across 
  prosternum, 
  rounded 
  at 
  tip. 
  Antenna^ 
  

   about 
  twice 
  as 
  long 
  as 
  the 
  head 
  (first 
  5 
  joints 
  = 
  l*5 
  times 
  

  

  