﻿FURTHER 
  NOTES 
  ON 
  THE 
  TABANIDAE 
  OF 
  PALESTINE. 
  153 
  

  

  clothed 
  with 
  minute, 
  glistening 
  pale 
  yellowish 
  hairs, 
  and 
  with 
  some 
  minute 
  blackish 
  

   hairs 
  at 
  extreme 
  tip 
  ; 
  antennae 
  black, 
  first 
  segment 
  in 
  9 
  paler 
  (cinnamon 
  or 
  pinkish- 
  

   cinnamon) 
  on 
  proximal 
  half 
  or 
  two-thirds, 
  at 
  least 
  on 
  inner 
  side, 
  first 
  segment 
  in 
  

   c? 
  somewhat 
  thickened 
  at 
  base, 
  but 
  not 
  noticeably 
  incrassate, 
  slightly 
  greyish 
  

   pollinose, 
  and 
  clothed 
  with 
  long 
  hair 
  of 
  same 
  kind 
  and 
  colour 
  as 
  that 
  on 
  face, 
  second 
  

   segment 
  in 
  $ 
  clothed 
  with 
  minute 
  black 
  hairs 
  and 
  rather 
  longer 
  than 
  first 
  segment, 
  

   third 
  segment 
  in 
  <J 
  about 
  one-half 
  longer 
  than 
  second 
  ; 
  antennae 
  in 
  $ 
  more 
  slender 
  

   than 
  in 
  $, 
  first 
  segment 
  not 
  at 
  all 
  incrassate, 
  second 
  segment 
  approximately 
  equal 
  

   in 
  length 
  to 
  first 
  segment 
  or 
  rather 
  shorter, 
  third 
  segment 
  from 
  one-third 
  longer 
  than, 
  

   to 
  nearly 
  half 
  as 
  long 
  again 
  as 
  first, 
  latter 
  clothed 
  with 
  short, 
  glistening 
  cream-buff 
  

   hairs, 
  mixed 
  with 
  black 
  hairs 
  above 
  and 
  towards 
  distal 
  extremity, 
  second 
  segment 
  

   clothed 
  with 
  minute 
  black 
  hairs. 
  Thorax 
  (including 
  scutellum) 
  shining 
  black 
  above, 
  

   in 
  (J 
  with 
  a 
  pair 
  of 
  faintly 
  indicated, 
  broad, 
  admedian 
  greyish 
  stripes 
  extending 
  

   from 
  anterior 
  margin 
  to 
  region 
  of 
  transverse 
  suture, 
  in 
  $ 
  with 
  a 
  pair 
  of 
  well-defined, 
  

   narrower, 
  admedian, 
  pale 
  olive-grey 
  longitudinal 
  stripes, 
  extending 
  from 
  anterior 
  

   margin 
  to 
  prescutellar 
  groove, 
  where 
  each 
  stripe 
  curves 
  outwards 
  to 
  join 
  corresponding 
  

   lateral 
  border, 
  which, 
  like 
  anterior 
  border 
  and 
  interspace 
  between 
  longitudinal 
  

   stripes 
  in 
  front 
  is 
  light 
  olive-grey 
  pollinose 
  ; 
  pleurae 
  and 
  pectus 
  olive-grey 
  or 
  light 
  

   olive-grey 
  pollinose 
  in 
  both 
  sexes 
  ; 
  thorax 
  in 
  both 
  sexes 
  clothed 
  with 
  long, 
  fine 
  

  

  Fig. 
  2. 
  Abdomen 
  of 
  Chrysops 
  buxtoni, 
  Austen, 
  £, 
  dorsal 
  view 
  ; 
  x 
  7. 
  

  

  whitish 
  or 
  yellowish 
  hair, 
  particularlv 
  dense 
  on 
  pleurae, 
  but 
  in 
  $ 
  somewhat 
  shorter 
  

   above. 
  Abdomen 
  : 
  upper 
  surface 
  (c/. 
  figs. 
  2 
  and 
  3) 
  mainly 
  pinkish-buff 
  or 
  cream-buff 
  

   in 
  <£, 
  mainly 
  black 
  in 
  $ 
  ; 
  first 
  (visible) 
  tergite 
  in 
  <$, 
  except 
  posterior 
  angles 
  and 
  a 
  

   deep 
  hind 
  border 
  on 
  each 
  side 
  equal 
  to 
  about 
  one-fourth 
  of 
  the 
  breadth 
  of 
  the 
  segment, 
  

   shining 
  black 
  ; 
  second 
  tergite 
  in 
  same 
  sex 
  with 
  a 
  large, 
  shining 
  black 
  median 
  spot, 
  

   roughly 
  circular 
  in 
  outline 
  or 
  irregularly 
  quadrate 
  with 
  its 
  posterior 
  angles 
  rounded 
  off, 
  

   resting 
  on 
  base, 
  but 
  not 
  quite 
  reaching 
  hind 
  margin, 
  and 
  on 
  each 
  side 
  at 
  base 
  with 
  a 
  

   fainter 
  (neutral 
  grey) 
  extension 
  connecting 
  it 
  with 
  hind 
  margin 
  of 
  preceding 
  segment 
  ; 
  

   third 
  tergite 
  in 
  <$ 
  with 
  a 
  large, 
  roughly 
  cordate 
  median 
  black 
  spot, 
  equal 
  in 
  width 
  

   to 
  spot 
  on 
  second 
  segment, 
  separated 
  by 
  a 
  considerable 
  interval 
  from 
  hind 
  margin, 
  

   but 
  with 
  its 
  forwardly 
  directed 
  apex 
  closer 
  to 
  or 
  actually 
  in 
  contact 
  with 
  front 
  

   margin 
  ; 
  fourth 
  tergite 
  in 
  $ 
  with 
  a 
  median, 
  basal 
  black 
  spot 
  (most 
  distinct 
  when 
  

   abdomen 
  is 
  viewed 
  at 
  a 
  fairly 
  low 
  angle 
  from 
  behind), 
  in 
  shape 
  resembling 
  posterior 
  

   half 
  of 
  spot 
  on 
  third 
  segment, 
  or 
  sometimes 
  looking 
  like 
  a 
  pair 
  of 
  admedian 
  triangles, 
  

   separated 
  by 
  a 
  greyish-olive, 
  pollinose 
  median 
  triangle, 
  base 
  of 
  which 
  rests 
  on 
  hind 
  

   margin 
  ; 
  fifth 
  and 
  sixth 
  tergites 
  in 
  $ 
  greyish-olive 
  or 
  pale 
  smoke-grey 
  pollinose, 
  

   with 
  pinkish-buff 
  hind 
  borders, 
  fifth 
  tergite, 
  at 
  least 
  when 
  viewed 
  at 
  a 
  fairly 
  low 
  

   angle 
  from 
  behind, 
  usually 
  exhibiting 
  a 
  pair 
  of 
  small, 
  admedian, 
  black 
  triangles, 
  

   resting 
  on 
  front 
  margin 
  ; 
  third 
  and 
  two 
  following 
  tergites 
  in 
  $, 
  at 
  least 
  when 
  viewed 
  

   at 
  a 
  more 
  or 
  less 
  low 
  angle 
  from 
  behind, 
  each 
  exhibiting 
  a 
  median, 
  forwardly 
  directed, 
  

  

  