﻿CHAETOTAXY 
  OF 
  PUPA 
  OF 
  STEGOMYIA 
  FASCIATA. 
  167 
  

  

  about, 
  half-way 
  across 
  the 
  sixth 
  segment 
  ; 
  single, 
  occasionally 
  double. 
  B' 
  — 
  a 
  small 
  

   seta 
  anterior 
  and 
  a 
  little 
  internal 
  to 
  B 
  ; 
  usually 
  double, 
  sometimes 
  single 
  or 
  triple. 
  

   C 
  — 
  a 
  moderately 
  long 
  delicate 
  seta 
  ; 
  single 
  or 
  double. 
  C 
  — 
  a 
  moderately 
  long 
  delicate 
  

   seta 
  external 
  and 
  anterior 
  to 
  C 
  ; 
  single 
  or 
  double. 
  C" 
  — 
  a 
  rather 
  short, 
  relatively 
  

   stout 
  seta 
  internal 
  and 
  anterior 
  to 
  C 
  ; 
  single, 
  occasionally 
  double. 
  D 
  — 
  ■ 
  a 
  minute 
  

   seta. 
  

  

  Segment 
  VI. 
  

  

  A 
  — 
  stout, 
  longer 
  than 
  on 
  the 
  fifth 
  segment 
  ; 
  single, 
  end 
  occasionally 
  forked. 
  

   A' 
  — 
  a 
  long 
  delicate 
  seta 
  anterior 
  and 
  internal 
  to 
  A 
  ; 
  single, 
  occasionally 
  double. 
  

   B 
  — 
  a 
  long 
  seta 
  reaching 
  nearly 
  half-way 
  across 
  the 
  seventh 
  segment 
  ; 
  single. 
  B' 
  — 
  • 
  

   a 
  delicate 
  seta 
  of 
  moderate 
  length 
  anterior 
  and 
  a 
  little 
  internal 
  to 
  B 
  ; 
  usually 
  double, 
  

   occasionally 
  single. 
  C 
  — 
  a 
  rather 
  small 
  delicate 
  seta 
  ; 
  single 
  or 
  double. 
  C 
  — 
  a 
  seta 
  

   of 
  moderate 
  length 
  external 
  and 
  a 
  little 
  anterior 
  to 
  C 
  ; 
  single, 
  occasionally 
  double. 
  

   C" 
  — 
  a 
  small 
  seta, 
  rather 
  stouter, 
  anterior 
  and 
  internal 
  to 
  C 
  ; 
  single. 
  D 
  — 
  a 
  minute 
  

   seta. 
  

  

  Segment 
  VII. 
  

  

  A 
  — 
  a 
  long 
  strong 
  seta, 
  sometimes 
  pubescent 
  ; 
  single 
  or 
  double. 
  A'— 
  a 
  delicate 
  

   seta 
  of 
  moderate 
  length 
  close 
  by 
  and 
  internal 
  and 
  posterior 
  to 
  A 
  ; 
  single 
  or 
  double, 
  

   occasionally 
  triple. 
  B 
  — 
  a 
  rather 
  long 
  seta 
  single. 
  B' 
  — 
  ■ 
  a 
  rather 
  long 
  delicate 
  seta 
  

   external 
  and 
  anterior 
  to 
  B 
  ; 
  single. 
  B" 
  — 
  a 
  smaller 
  delicate 
  seta 
  internal 
  and 
  anterior 
  

   to 
  B 
  ; 
  single, 
  occasionally 
  double 
  ; 
  this 
  seta 
  probably 
  corresponds 
  to 
  C 
  on 
  the 
  more 
  

   anterior 
  segments. 
  C 
  — 
  a 
  rather 
  small 
  delicate 
  seta 
  ; 
  single. 
  C" 
  — 
  a 
  small 
  seta, 
  

   rather 
  stouter, 
  anterior 
  to 
  C 
  ; 
  single 
  ; 
  this 
  seta 
  probably 
  corresponds 
  to 
  C" 
  on 
  the 
  

   more 
  anterior 
  segments. 
  D 
  — 
  ■ 
  a 
  minute 
  seta. 
  

  

  Segment 
  VIII. 
  

  

  A 
  — 
  a 
  well 
  developed 
  tuft 
  of 
  two 
  to 
  five, 
  usually 
  four, 
  strong 
  hairs, 
  sub-plumose 
  

   and 
  sometimes 
  branched. 
  D 
  — 
  a 
  minute 
  seta. 
  There 
  is 
  one 
  other 
  seta, 
  P, 
  on 
  this 
  

   segment, 
  situated 
  near 
  by 
  and 
  external 
  to 
  the 
  root 
  of 
  the 
  paddle 
  ; 
  it 
  is 
  rather 
  long, 
  

   slender, 
  and 
  single. 
  At 
  the 
  distal 
  end 
  of 
  the 
  midrib 
  of 
  the 
  paddle 
  there 
  is 
  a 
  

   moderately 
  long 
  strong 
  seta 
  (P) 
  ; 
  single. 
  

  

  Segment 
  IX. 
  

  

  No 
  setae. 
  

  

  A 
  typical 
  segment 
  may 
  be 
  regarded 
  as 
  having 
  the 
  following 
  setae 
  : 
  a 
  lateral 
  

   seta 
  with 
  a 
  seta 
  a 
  little 
  internal 
  to 
  it 
  ; 
  a 
  seta 
  belonging 
  to 
  the 
  sub-lateral 
  row 
  with 
  

   a 
  seta 
  a 
  little 
  anterior 
  to 
  it 
  ; 
  a 
  seta 
  belonging 
  to 
  the 
  sub-median 
  row 
  with 
  two 
  setae, 
  

   the 
  one 
  internal 
  to 
  the 
  other, 
  a 
  little 
  anterior 
  to 
  it 
  ; 
  and 
  a 
  minute 
  anterior 
  dorso- 
  

   central 
  seta. 
  

  

  Ventral 
  Abdominal 
  Setae 
  (fig. 
  4). 
  

  

  The 
  ventral 
  abdominal 
  setae 
  are 
  relatively 
  inconspicuous. 
  They 
  are 
  directed 
  

   backwards, 
  and 
  most 
  of 
  them 
  are 
  situated 
  near 
  the 
  posterior 
  margins 
  of 
  the 
  segments. 
  

   Some 
  of 
  them 
  are 
  arranged 
  in 
  series, 
  and 
  it 
  will 
  be 
  convenient 
  to 
  describe 
  them 
  

   before 
  enumerating 
  the 
  setae 
  found 
  on 
  the 
  different 
  segments. 
  The 
  following 
  series 
  

   can 
  be 
  recognised 
  : 
  — 
  

  

  1. 
  — 
  A 
  series 
  of 
  setae, 
  the 
  medio-lateral 
  setae 
  (E), 
  situated 
  a 
  little 
  posterior 
  to 
  

   the 
  middle 
  points 
  of 
  the 
  segments 
  a 
  short 
  distance 
  internal 
  to 
  their 
  lateral 
  borders. 
  

  

  