﻿NOTES 
  ON 
  THE 
  ETHIOPIAN 
  FRUIT 
  FLIES, 
  OTHER 
  THAN 
  DACUS. 
  271 
  

  

  entirely 
  pale. 
  Scutellum 
  like 
  the 
  back 
  of 
  the 
  mesonotum, 
  but 
  broadly 
  yellowish 
  

   at 
  the 
  sides 
  and 
  behind 
  ; 
  the 
  b. 
  set. 
  are 
  blackish 
  at 
  base 
  and 
  inserted 
  over 
  black 
  

   spots 
  ; 
  the 
  a. 
  set. 
  are 
  much 
  smaller, 
  decussate 
  at 
  the 
  end, 
  not 
  darkened 
  at 
  the 
  

   base 
  and 
  not 
  inserted 
  on 
  black 
  spots. 
  Postscutellum 
  and 
  mesophragma 
  black 
  

   but 
  clothed 
  with 
  grey 
  dust, 
  which 
  is 
  darker 
  on 
  the 
  former. 
  Squamulae 
  and 
  halteres 
  

   whitish. 
  The 
  abdomen 
  seems 
  to 
  be 
  differently 
  coloured 
  from 
  that 
  of 
  spinosa, 
  

   being 
  entirely 
  reddish, 
  with 
  the 
  base 
  of 
  the 
  first 
  two 
  segments 
  narrowly 
  blackish 
  ; 
  

   hairs 
  and 
  bristles 
  pale 
  yellowish 
  ; 
  ovipositor 
  broad, 
  flattened, 
  with 
  the 
  basal 
  

   segment 
  shining 
  reddish 
  with 
  black 
  end. 
  Legs 
  pale 
  yellowish, 
  with 
  dark 
  pubescence 
  

   and 
  whitish 
  bristles 
  ; 
  front 
  femora 
  beneath 
  before 
  the 
  end 
  with 
  a 
  blackish 
  spot, 
  

   forming 
  an 
  incomplete 
  ring, 
  and 
  there 
  with 
  blackish 
  bristles 
  ; 
  the 
  four 
  posterior 
  

   femora 
  have 
  this 
  spot 
  more 
  developed, 
  and 
  have 
  moreover 
  a 
  similar 
  but 
  more 
  

   elongate 
  spot 
  near 
  the 
  base 
  ; 
  all 
  the 
  tibiae 
  have 
  a 
  narrow 
  black 
  ring 
  near 
  the 
  base, 
  

   less 
  developed 
  on 
  the 
  front 
  pair 
  ; 
  hind 
  tibiae 
  with 
  a 
  short 
  but 
  distinct 
  posterior 
  

   row 
  of 
  bristles. 
  The 
  wings 
  are 
  shaped 
  as 
  in 
  Lamb's 
  figure 
  13, 
  p. 
  321; 
  they 
  have 
  

   the 
  same 
  venation, 
  with 
  a 
  deeply 
  sinuous 
  fourth 
  longitudinal 
  vein 
  and 
  a 
  nearly 
  

   straight 
  hind 
  cross- 
  vein 
  ; 
  in 
  the 
  Oriental 
  species 
  pulchella 
  and 
  venusta 
  the 
  fourth 
  

   vein 
  is 
  a 
  almost 
  straight, 
  but 
  the 
  hind 
  cross- 
  vein 
  is 
  likewise 
  about 
  straight 
  ; 
  in 
  

   bakeri 
  the 
  fourth 
  vein 
  is 
  straight, 
  while 
  the 
  hind 
  cross-vein 
  is 
  broadly 
  S-shaped 
  

   and 
  oblique. 
  The 
  veins 
  are 
  bare, 
  as 
  stated 
  by 
  Lamb 
  ; 
  but 
  on 
  the 
  third 
  vein 
  I 
  

   can 
  perceive 
  some 
  scattered, 
  almost 
  microscopic, 
  black 
  bristles. 
  The 
  general 
  

   shape 
  of 
  the 
  pattern 
  is 
  the 
  same 
  ; 
  it 
  is 
  however 
  not 
  black, 
  but 
  yellowish 
  brown 
  ; 
  

   the 
  shining 
  " 
  bullae 
  " 
  are 
  of 
  the 
  same 
  number 
  and 
  have 
  the 
  same 
  disposition 
  ; 
  

   but 
  the 
  wing 
  pattern 
  being 
  more 
  clear, 
  the 
  black 
  spot 
  at 
  the 
  base 
  of 
  the 
  first 
  posterior 
  

   cell 
  is 
  very 
  striking 
  ; 
  it 
  is 
  placed 
  below 
  the 
  basal 
  " 
  bulla 
  " 
  of 
  the 
  same 
  cell, 
  and 
  

   bears 
  at 
  base 
  a 
  small 
  rounded 
  whitish-hyaline 
  dot, 
  corresponding 
  to 
  that 
  figured 
  

   by 
  Lamb 
  at 
  the 
  inner 
  basal 
  angle 
  of 
  the 
  first 
  posterior 
  cell. 
  Other 
  differences 
  are 
  : 
  

   (1) 
  the 
  marginal 
  cell 
  has 
  no 
  hyaline 
  spots 
  in 
  the 
  fuscous 
  part 
  at 
  the 
  base 
  of 
  the 
  

   radiating 
  streaks 
  ; 
  (2) 
  the 
  hyaline 
  dots 
  in 
  the 
  submarginal, 
  first 
  basal 
  and 
  first 
  

   posterior 
  cells 
  are 
  less 
  numerous 
  and 
  much 
  smaller. 
  It 
  must 
  be 
  remarked 
  that 
  

   in 
  the 
  present 
  species, 
  as 
  well 
  as 
  in 
  spinosa, 
  the 
  costal 
  nick, 
  even 
  if 
  distinct, 
  is 
  much 
  

   less 
  developed 
  than 
  in 
  pulchella 
  and 
  bakeri 
  ; 
  de 
  Meijere's 
  figure 
  of 
  venusta 
  shows 
  

   it 
  however 
  not 
  developed. 
  

  

  Type 
  $, 
  a 
  single 
  specimen 
  from 
  Nyasaland, 
  S.W. 
  of 
  Lake 
  Chilwa, 
  13.1.1914, 
  

   collected 
  by 
  S. 
  A. 
  Neave, 
  in 
  whose 
  honour 
  the 
  species 
  is 
  named. 
  

  

  Two 
  species 
  of 
  Euribia, 
  perpallida 
  and 
  discipulchra* 
  both 
  likewise 
  from 
  

   Nyasaland, 
  show 
  a 
  very 
  remarkable 
  affinity 
  with 
  the 
  above-described 
  species 
  

   of 
  Rhabdochaeta, 
  and 
  are 
  perhaps 
  allied 
  ; 
  but 
  they 
  have 
  different 
  wing 
  pattern, 
  

   unicolorous 
  legs, 
  etc. 
  

  

  * 
  Bull. 
  Ent. 
  Kes. 
  ix, 
  1918, 
  pp. 
  :$5, 
  36. 
  

  

  