﻿278 
  F. 
  W. 
  EDWARDS. 
  

  

  in 
  Ochlerotatus 
  than 
  in 
  Stegomyia 
  or 
  Aedes. 
  The 
  male 
  genitalia 
  offer 
  little 
  assistance 
  

   in 
  classifying 
  the 
  insect, 
  since 
  their 
  structure 
  is 
  so 
  aberrant. 
  The 
  rather 
  small 
  but 
  

   curiously 
  complex 
  hypopygium 
  is 
  almost 
  hidden 
  by 
  the 
  greatly 
  developed 
  

   seventh 
  sternite 
  (fig. 
  2). 
  

  

  Fig. 
  2. 
  Male 
  armature^of 
  Ochlerotatus 
  pembaensis, 
  Theo. 
  

  

  The 
  Oriental 
  species, 
  0. 
  (" 
  Stegomyia 
  ") 
  micropterus, 
  Giles, 
  would 
  appear 
  to 
  be 
  a 
  

   near 
  ally 
  of 
  0. 
  pembaensis, 
  as 
  it 
  resembles 
  it 
  in 
  everything 
  except 
  the 
  male 
  genitalia 
  

   and 
  the 
  more 
  brownish 
  tint 
  ; 
  in 
  0. 
  micropterus 
  the 
  male 
  genitalia 
  and 
  also 
  the 
  larvae 
  

   (which 
  have 
  been 
  found 
  by 
  Major 
  James, 
  living 
  in 
  bamboo 
  stems 
  in 
  Ceylon) 
  approach 
  

   closely 
  to 
  the 
  ordinary 
  Ochlerotatus 
  type. 
  

  

  Genus 
  Taeniorhynchus, 
  Arrib. 
  

  

  1 
  . 
  Tibiae 
  all 
  black 
  or 
  violet-black 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  2 
  

  

  Tibiae 
  yellow, 
  often 
  with 
  black 
  rings 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  3 
  

  

  2. 
  Violet-black 
  species, 
  thorax 
  with 
  a 
  patch 
  of 
  

  

  whitish 
  scales 
  in 
  front 
  . 
  . 
  . 
  . 
  . 
  . 
  metallicus, 
  Theo. 
  

  

  Thorax 
  shining 
  black, 
  abdomen 
  golden-yellow 
  nigriihorax, 
  Theo. 
  

  

  3. 
  Hind 
  tibiae 
  entirely 
  yellow 
  4 
  

  

  Hind 
  tibiae 
  with 
  a 
  black 
  ring 
  in 
  the 
  middle 
  . 
  . 
  . 
  . 
  . 
  . 
  6 
  

  

  4. 
  Wing-scales 
  and 
  scales 
  on 
  palpi 
  in 
  both 
  sexes 
  

  

  all 
  yellow 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  auripennis, 
  sp. 
  n. 
  

  

  Wings 
  with 
  some 
  dark 
  scales 
  ; 
  tips 
  of 
  palpi 
  

  

  black-scaled 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  5 
  

  

  5. 
  Wings 
  with 
  dark 
  scales 
  almost 
  confined 
  to 
  the 
  

  

  sixth 
  longitudinal 
  vein 
  microannulatus, 
  Theo. 
  

  

  Fourth, 
  fifth 
  and 
  sixth 
  veins 
  mainly 
  dark- 
  

   scaled 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  chubbi, 
  sp. 
  n. 
  

  

  6. 
  Golden-yellow 
  species 
  ; 
  costa 
  entirely 
  yellow 
  ; 
  

  

  dark 
  scales 
  on 
  wings 
  few 
  or 
  absent 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  . 
  7 
  

  

  Darker 
  species 
  ; 
  costa 
  with 
  at 
  least 
  a 
  few 
  dark 
  

  

  scales 
  ; 
  dark 
  scales 
  on 
  wings 
  numerous 
  . 
  . 
  . 
  . 
  . 
  . 
  9 
  

  

  