﻿130 
  

  

  A. 
  T. 
  STANTON. 
  

  

  surface 
  of 
  the 
  ovum 
  and 
  the 
  lateral 
  areas 
  between 
  the 
  floats 
  and 
  the 
  frill, 
  has 
  a 
  

   reticulated 
  pattern. 
  The 
  floats 
  are 
  oblong 
  in 
  shape 
  and 
  extend 
  over 
  the 
  middle 
  two- 
  

   thirds 
  of 
  the 
  ovum's 
  length 
  ; 
  each 
  float 
  has 
  about 
  twenty 
  corrugations. 
  Length 
  of 
  

   ovum 
  0*45 
  mm., 
  greatest 
  breadth 
  0*16 
  m.m. 
  

  

  This 
  ovum 
  does 
  not 
  differ 
  in 
  any 
  detail 
  from 
  that 
  of 
  A. 
  tessellatus 
  (Bull. 
  Ent. 
  Kes. 
  

   iv,p.l31). 
  

  

  The 
  Newly 
  Hatched 
  Larva. 
  

  

  When 
  it 
  emerges 
  from 
  the 
  egg 
  the 
  larva 
  of 
  Anopheles 
  hochi 
  is 
  peculiar 
  among 
  the 
  

   Malayan 
  species 
  so 
  far 
  examined 
  in 
  regard 
  to 
  the 
  form 
  of 
  the 
  anterior 
  clypeal 
  hairs. 
  

   Even 
  those 
  species 
  in 
  which 
  these 
  hairs 
  are 
  much 
  branched 
  in 
  the 
  mature 
  form 
  show 
  

   only 
  simple 
  bristles 
  in 
  the 
  earliest 
  stage 
  of 
  the 
  larva 
  ; 
  in 
  kochi, 
  however, 
  the 
  inner 
  

   pair 
  of 
  anterior 
  clypeal 
  hairs 
  are 
  coarsely 
  pinnate 
  in 
  the 
  newly 
  hatched 
  larva, 
  though 
  

   they 
  are 
  only 
  very 
  finely 
  so 
  in 
  the 
  mature 
  form. 
  

  

  Fig. 
  1. 
  

  

  Don., 
  

  

  Larva 
  of 
  Anopheles 
  kochi, 
  

   after 
  first 
  moult. 
  

  

  Fig. 
  1 
  shows 
  the 
  appearance 
  of 
  the 
  larva 
  after 
  the 
  first 
  moult. 
  At 
  this 
  stage 
  it 
  

   differs 
  from 
  the 
  newly 
  hatched 
  larva 
  only 
  in 
  its 
  greater 
  length 
  and 
  in 
  the 
  elongation 
  

   of 
  the 
  head. 
  The 
  form 
  and 
  arrangement 
  of 
  the 
  hairs 
  remain 
  as 
  in 
  the 
  newly 
  hatched 
  

   larva 
  and 
  are 
  as 
  follows 
  : 
  — 
  

  

  Head. 
  The 
  inner 
  anterior 
  clypeal 
  hairs 
  are 
  long 
  and 
  coarsely 
  pinnate. 
  The 
  outer 
  

   anterior 
  clypeal 
  hairs 
  are 
  short, 
  only 
  about 
  one-fourth 
  the 
  length 
  of 
  the 
  inner, 
  and 
  

  

  