﻿Mr. 
  R. 
  S. 
  Bagnall 
  on 
  new 
  Tliysanopteva. 
  295 
  

  

  Cryptothrips 
  insularis, 
  sp. 
  ii. 
  

  

  Lengtli 
  about 
  2'25, 
  breadth 
  of 
  mesotlicrax 
  0'38 
  mm. 
  

  

  Near 
  C. 
  dentipes, 
  E,eut. 
  Colour 
  ahiKSt 
  black 
  ; 
  legs 
  dark 
  

   blown, 
  tibise 
  somevvlmt 
  lighter 
  apicallj 
  ; 
  tarsi 
  yellowish- 
  

   brown. 
  Antennae 
  concolorous 
  with 
  liead, 
  joint 
  3 
  yellow, 
  

   dark 
  brov\u 
  near 
  apex. 
  

  

  Form 
  linear, 
  apterous. 
  

  

  Head 
  as 
  in 
  dentipes, 
  about 
  1'25 
  times 
  as 
  long 
  as 
  broad 
  

   behind 
  eyes 
  and 
  about 
  twice 
  as 
  long 
  as 
  the 
  prothorax. 
  

   Eyes 
  small, 
  occupying 
  0*25 
  the 
  length 
  of: 
  head, 
  moderately 
  

   finely 
  facetted. 
  Ocelli 
  small, 
  posterior 
  pair 
  widely 
  sei)arated 
  

   and 
  touching 
  inner 
  margins 
  of 
  eyes, 
  Antenna3 
  1"75 
  times 
  

   the 
  length 
  of 
  head, 
  intermediate 
  joints 
  not 
  elongated 
  as 
  in 
  

   dentipes, 
  3-5 
  approximately 
  subequal 
  and 
  but 
  sliglitly 
  longer 
  

   than 
  6. 
  

  

  Prothorax 
  transverse, 
  about 
  1*8 
  times 
  as 
  broad 
  as 
  long 
  ; 
  

   two 
  foveee, 
  one 
  above 
  the 
  other, 
  near 
  each 
  lateral 
  margin. 
  

   Pterothorax 
  only 
  a 
  little 
  broader 
  than 
  the 
  width 
  across 
  fore- 
  

   coxa3, 
  transverse. 
  Legs 
  somewhat 
  short. 
  

  

  Abdomen 
  elongated, 
  linear, 
  a 
  little 
  broader 
  than 
  the 
  

   pteroihorax 
  ; 
  segments 
  8-9 
  sharply 
  narrowing 
  to 
  base 
  of 
  

   tube. 
  Tube 
  short, 
  stout, 
  0"6 
  the 
  length 
  of 
  head. 
  Setge 
  

   indeterminable 
  in 
  the 
  carded 
  specimen. 
  

  

  Type. 
  In 
  the 
  British 
  Museum 
  of 
  Natural 
  History, 
  

  

  nab. 
  Canary 
  Isles 
  (7'. 
  V. 
  Wollaston), 
  

  

  The 
  shape 
  of 
  the 
  head 
  is 
  almost 
  exactly 
  as 
  in 
  C. 
  dentipes, 
  

   but 
  not 
  quite 
  so 
  broad. 
  From 
  this 
  species 
  it 
  is 
  readily 
  

   separated 
  by 
  its 
  linear 
  form, 
  the 
  short 
  antennae 
  (twice 
  as 
  

   long 
  as 
  the 
  head 
  in 
  dentipes^ 
  and 
  short 
  intermediate 
  joints, 
  

   the 
  darker 
  fore-tibia?, 
  shorter 
  legs, 
  and 
  the 
  short 
  tube, 
  which 
  

   in 
  dentipes 
  is 
  as 
  long 
  as 
  the 
  head. 
  

  

  Genus 
  MiCEOCANTHOTHRiPS, 
  nov. 
  

  

  For 
  some 
  time 
  I 
  have 
  been 
  aware 
  that 
  my 
  Ceplialothrips 
  

   spinosus 
  could 
  not 
  be 
  retained 
  in 
  that 
  genus. 
  A 
  very 
  strong 
  

   aititicial 
  light 
  enables 
  one 
  to 
  examine 
  the 
  femora 
  tucked 
  up 
  

   under 
  the 
  head 
  through 
  the 
  dark 
  chitin, 
  and 
  I 
  have 
  thus 
  

   drawn 
  up 
  the 
  following 
  brief 
  diagnosis, 
  which 
  is 
  sutiieient 
  to 
  

   characterise 
  the 
  genus 
  for 
  the 
  time 
  being. 
  If 
  further 
  speci-- 
  

   mens 
  do 
  not 
  come 
  to 
  hand, 
  I 
  propose 
  to 
  carefully 
  remount 
  the 
  

   unique 
  preparation. 
  

  

  It 
  cannot 
  be 
  referred 
  to 
  any 
  of 
  the 
  known 
  genera 
  with 
  

   armed 
  fore-femora, 
  and 
  would 
  seem 
  to 
  come 
  in 
  the 
  Ilaplo- 
  

   thrips 
  group. 
  

  

  20* 
  

  

  