﻿NOTES 
  ON 
  THE 
  ETHIOPIAN 
  FRUIT 
  FLIES, 
  OTHER 
  THAN 
  DACUS. 
  263 
  

  

  Ensina 
  siphonina, 
  Bezzi 
  (1918). 
  

  

  There 
  is 
  an 
  additional 
  specimen 
  of 
  this 
  very 
  distinct 
  species, 
  likewise 
  from 
  British 
  

   East 
  Africa, 
  Nakuru, 
  i. 
  1913 
  (Dr. 
  B. 
  L. 
  van 
  Someren). 
  

  

  Trypanea, 
  Schrank, 
  1795. 
  

   Of 
  this 
  genus, 
  numerous 
  species 
  of 
  which 
  are 
  tabulated 
  in 
  my 
  previous 
  paper, 
  

   there 
  are 
  in 
  the 
  new 
  material 
  before 
  me 
  two 
  forms 
  which 
  are 
  both 
  very 
  different 
  

   in 
  wing 
  pattern 
  from 
  all 
  the 
  other 
  Ethiopian 
  species 
  before 
  known, 
  and 
  are 
  here 
  

   described 
  as 
  new. 
  

  

  Trypanea 
  subcompleta, 
  sp. 
  no 
  v. 
  (PL 
  xviii, 
  fig. 
  8.). 
  

  

  Distinguishable 
  by 
  the 
  four 
  strong 
  scutellar 
  bristles 
  and 
  by 
  the 
  wings, 
  which 
  

   have 
  the 
  typical 
  star-shaped 
  subapical 
  pattern, 
  but 
  are 
  marked 
  to 
  the 
  base 
  with 
  a 
  

   faded 
  but 
  well 
  developed 
  reticulation, 
  like 
  that 
  of 
  the 
  American 
  species 
  abstersa, 
  

   Loew, 
  and 
  reticulata, 
  Hendel. 
  

  

  $. 
  Length 
  of 
  body 
  3*7 
  mm. 
  ; 
  of 
  ovipositor 
  0*5 
  mm. 
  ; 
  of 
  wing 
  4 
  mm. 
  

  

  Head 
  of 
  proportionally 
  smaller 
  size 
  and 
  rather 
  narrow 
  in 
  profile, 
  with 
  the 
  purplish 
  

   eyes 
  higher 
  than 
  broad 
  ; 
  it 
  is 
  greyish, 
  with 
  a 
  dark 
  spot 
  on 
  the 
  middle 
  of 
  the 
  occiput 
  ; 
  

   frons 
  about 
  as 
  broad 
  as 
  long, 
  not 
  at 
  all 
  prominent 
  in 
  front, 
  with 
  whitish 
  dust 
  in 
  the 
  

   middle 
  ; 
  lunula 
  rather 
  broad 
  ; 
  face 
  short, 
  not 
  prominent 
  below 
  ; 
  cheeks 
  linear 
  

   and 
  jowls 
  only 
  a 
  little 
  broader. 
  Antennae 
  inserted 
  at 
  middle 
  of 
  the 
  eyes, 
  only 
  

   a 
  little 
  shorter 
  than 
  the 
  face, 
  entirely 
  yellow, 
  with 
  the 
  third 
  joint 
  rounded 
  at 
  end 
  ; 
  

   arista 
  bare. 
  Palpi 
  and 
  proboscis 
  yellowish, 
  the 
  latter 
  short 
  and 
  retracted 
  into 
  the 
  

   oral 
  cavity. 
  Cephalic 
  bristles 
  dark 
  yellowish, 
  but 
  those 
  of 
  the 
  hind 
  border 
  whitish 
  ; 
  

   oc. 
  long 
  and 
  strong 
  ; 
  three 
  L 
  or., 
  but 
  the 
  anterior 
  one 
  less 
  than 
  half 
  as 
  long 
  as 
  the 
  

   others. 
  Thorax 
  blackish 
  on 
  the 
  back, 
  yellowish 
  on 
  the 
  sides, 
  but 
  densely 
  clothed 
  

   with 
  grey 
  dust, 
  opaque 
  and 
  unicolorous 
  ; 
  the 
  short 
  hairs 
  are 
  pale 
  yellowish, 
  the 
  

   bristles 
  dark 
  yellowish, 
  those 
  of 
  the 
  back 
  being 
  inserted 
  over 
  small 
  black 
  dots 
  ; 
  

   ft. 
  as 
  strong 
  as 
  the 
  st. 
  ; 
  hairs 
  of 
  the 
  hind 
  border 
  of 
  mesopleura 
  rather 
  long. 
  

   Scutellum 
  like 
  the 
  thorax, 
  but 
  broadly 
  yellowish 
  at 
  the 
  hind 
  border 
  ; 
  b. 
  set. 
  long, 
  

   diverging, 
  inserted 
  over 
  rather 
  broad 
  black 
  spots 
  ; 
  a. 
  set. 
  a 
  little 
  shorter, 
  decussate, 
  

   on 
  smaller 
  black 
  spots. 
  Postscutellum 
  and 
  mesophragma 
  entirely 
  grey. 
  Squamulae 
  

   whitish, 
  halteres 
  pale 
  yellowish. 
  Abdomen 
  like 
  the 
  thorax, 
  with 
  short 
  pale 
  yellowish 
  

   hairs 
  and 
  yellowish 
  terminal 
  bristles 
  ; 
  the 
  first 
  three 
  segments 
  have 
  a 
  rather 
  broad 
  

   yellowish 
  hind 
  border 
  ; 
  the 
  4th 
  and 
  5th 
  are 
  blacker 
  basally 
  and 
  more 
  yellow 
  

   apically 
  ; 
  ovipositor 
  depressed, 
  shining 
  black, 
  short 
  and 
  obtuse, 
  a 
  little 
  shorter 
  

   than 
  the 
  last 
  two 
  abdominal 
  segments 
  together. 
  Venter 
  pale 
  yellowish, 
  with 
  

   whitish 
  hairs. 
  Legs 
  short 
  and 
  stout, 
  entirely 
  pale 
  yellowish 
  ; 
  front 
  femora 
  above 
  

   with 
  a 
  complete 
  row 
  of 
  short 
  yellowish 
  bristles, 
  below 
  with 
  an 
  apical 
  row 
  of 
  four 
  

   very 
  long 
  yellowish 
  bristles 
  ; 
  spur 
  of 
  the 
  middle 
  tibiae 
  blackish 
  ; 
  hind 
  tibiae 
  with 
  

   a 
  well 
  developed 
  row 
  towards 
  the 
  middle. 
  Wings 
  long 
  and 
  narrow, 
  with 
  a 
  distinct 
  

   costal 
  bristle 
  and 
  pale 
  yellowish 
  veins, 
  which 
  are 
  infuscated 
  on 
  the 
  darker 
  parts 
  

   of 
  the 
  pattern 
  ; 
  first 
  vein 
  ending 
  much 
  before 
  the 
  small 
  cross- 
  vein 
  ; 
  2nd, 
  3rd 
  and 
  

   4th 
  veins 
  straight 
  in 
  their 
  terminal 
  portions 
  and 
  equally 
  and 
  gradually 
  divergent 
  ; 
  

   cross-veins 
  perpendicular 
  and 
  parallel, 
  the 
  hind 
  one 
  being 
  longer 
  than 
  its 
  distance 
  

   from 
  the 
  anterior 
  one 
  ; 
  lower 
  angle 
  of 
  the 
  anal 
  cell 
  acute 
  but 
  less 
  produced 
  ; 
  6th 
  

  

  