﻿422 
  

  

  J. 
  W. 
  S. 
  MACFIE 
  AND 
  A. 
  INGRAM. 
  

  

  feebly 
  chitinised, 
  and 
  finely 
  fringed 
  at 
  its 
  blunt 
  distal 
  end. 
  The 
  siphon 
  (fig. 
  10) 
  is 
  

   shorter 
  than 
  that 
  of 
  E. 
  chrysogaster, 
  and 
  is 
  less 
  than 
  twice 
  as 
  long 
  as 
  the 
  basal 
  breadth, 
  

   the 
  ratio 
  of 
  length 
  to 
  basal 
  breadth 
  being 
  about 
  1 
  -5 
  to 
  1 
  ; 
  it 
  bears 
  in 
  place 
  of 
  a 
  tuft 
  

   a 
  single 
  long 
  seta 
  on 
  its 
  basal 
  third, 
  and 
  has 
  either 
  no 
  pecten 
  or 
  only 
  a 
  single 
  spine. 
  

   The 
  dorsal 
  and 
  subventral 
  setae 
  at 
  the 
  posterior 
  margin 
  of 
  the 
  anal 
  segment 
  are 
  

   longer 
  than 
  in 
  E. 
  chrysogaster. 
  

  

  Diagnosis. 
  — 
  The 
  larva 
  of 
  E. 
  quinqueviitatus 
  may 
  be 
  distinguished 
  from 
  that 
  of 
  

   E. 
  chrysogaster 
  by 
  the 
  characters 
  given 
  above. 
  We 
  have 
  not 
  had 
  an 
  opportunity 
  

   of 
  examining 
  the 
  larva 
  of 
  E. 
  inomatus, 
  the 
  only 
  other 
  African 
  species 
  of 
  which 
  the 
  

   larva 
  has 
  apparently 
  been 
  described, 
  but 
  from 
  the 
  characters 
  given 
  by 
  Edwards 
  it 
  

   is 
  clear 
  that 
  it 
  more 
  closely 
  resembles 
  E. 
  quinquevittaUis 
  ; 
  indeed 
  the 
  only 
  point 
  

   mentioned 
  which 
  might 
  serve 
  to 
  separate 
  them, 
  namely, 
  the 
  two-haired 
  tuft 
  on 
  

   the 
  siphon 
  of 
  E. 
  inomatus, 
  is 
  not 
  likely 
  to 
  be 
  sufficient, 
  if 
  one 
  may 
  judge 
  from 
  the 
  

   range 
  of 
  variations 
  of 
  this 
  tuft 
  in 
  other 
  mosquitos. 
  

  

  TERZI 
  — 
  ' 
  

  

  Fig. 
  11. 
  Pupa 
  of 
  Ereimopodites 
  quinqueviitatus, 
  Theo. 
  : 
  a, 
  trumpet; 
  

  

  b, 
  paddles. 
  

  

  Pupa. 
  — 
  The 
  chief 
  differences 
  between 
  the 
  pupae 
  of 
  E. 
  quinquevittatus 
  and 
  E. 
  

   chrysogaster 
  are 
  as 
  follows:- 
  — 
  In 
  E. 
  quinquevittatus 
  the 
  respiratory 
  trumpets 
  (fig. 
  11, 
  a) 
  

   are 
  shorter, 
  length 
  about 
  • 
  5 
  mm. 
  ; 
  the 
  ratio 
  of 
  the 
  length 
  of 
  the 
  meatus 
  to 
  the 
  total 
  

   length 
  is, 
  however, 
  unchanged, 
  namely, 
  about 
  1 
  to 
  1 
  -4. 
  One 
  seta 
  on 
  the 
  cephalo- 
  

   thorax 
  is 
  especially 
  well 
  developed, 
  and 
  composed 
  of 
  two 
  to 
  four 
  long, 
  stout, 
  black, 
  

   pubescent 
  branches 
  ; 
  this 
  seta 
  is 
  apparently 
  the 
  median 
  post-ocular 
  seta, 
  but 
  as 
  both 
  

   the 
  specimens 
  examined 
  were 
  pelts 
  we 
  were 
  unable 
  to 
  be 
  certain 
  of 
  this. 
  The 
  paddles 
  

   (fig. 
  11, 
  b) 
  are 
  relatively 
  very 
  small 
  and 
  bear 
  a 
  long 
  fringe; 
  length 
  about 
  390 
  (i, 
  

   greatest 
  breadth 
  about 
  360^. 
  In 
  the 
  male" 
  the 
  sheaths 
  of 
  the 
  claspers 
  project 
  pos- 
  

   teriorly 
  beyond 
  the 
  ends 
  of 
  the 
  paddles. 
  At 
  the 
  distal 
  margin, 
  slightly 
  to 
  the 
  outer 
  

   side 
  of 
  the 
  end 
  of 
  the 
  midrib, 
  is 
  a 
  very 
  large 
  tuft 
  composed 
  of 
  ten 
  to 
  seventeen 
  long, 
  

   subplumose, 
  black 
  hairs 
  ; 
  this 
  tuft 
  is 
  about 
  0-7 
  mm. 
  to 
  0-8 
  mm. 
  long, 
  that 
  is, 
  much 
  

   longer 
  than 
  the 
  paddle. 
  The 
  dorsal 
  abdominal 
  setae 
  are 
  similar 
  to 
  those 
  of 
  E. 
  

   chrysogaster 
  , 
  but 
  the 
  lateral 
  setae 
  on 
  segments 
  vii 
  and 
  viii 
  are 
  rather 
  larger 
  and 
  more 
  

   subdivided 
  ; 
  the 
  sublateral 
  setae 
  on 
  segment 
  vii 
  very 
  small 
  and 
  inconspicuous, 
  on 
  

   segments 
  iv 
  to 
  vi 
  larger 
  than 
  in 
  E. 
  chrysogaster 
  ; 
  and 
  the 
  other 
  strongly 
  developed 
  

   setae 
  smaller 
  than 
  those 
  of 
  E. 
  chrysogaster. 
  The 
  tufts 
  on 
  segment 
  i 
  are 
  smaller 
  and 
  

  

  