﻿CONTRIBUTION 
  TO 
  KNOWLEDGE 
  OF 
  TABANIDAE 
  OF 
  PALESTINE. 
  

  

  283 
  

  

  front 
  margin 
  in 
  each 
  case 
  but 
  usually 
  not 
  reaching 
  or 
  not 
  quite 
  reaching 
  hind 
  border, 
  

   a 
  certain 
  number 
  of 
  the 
  tergites 
  indicated, 
  at 
  least 
  the 
  fourth 
  to 
  the 
  sixth, 
  also 
  

   with 
  a 
  narrow 
  median 
  stripe 
  of 
  same 
  colour 
  as 
  the 
  spots 
  ; 
  seventh 
  tergite 
  in 
  <}, 
  

   except 
  posterior 
  and 
  lateral 
  margins, 
  deep 
  olive 
  or 
  dark 
  olive, 
  without 
  spots 
  or 
  

   median 
  stripe, 
  lateral 
  margins 
  and 
  posterior 
  angles 
  of 
  third 
  and 
  following 
  tergites 
  

   of 
  same 
  colour 
  as 
  posterior 
  margins 
  ; 
  dorsum 
  in 
  <$ 
  clothed 
  mainly 
  with 
  blackish 
  

   hair, 
  which 
  in 
  central 
  region 
  of 
  first 
  three 
  and 
  sometimes 
  the 
  following 
  tergites 
  

   also 
  may 
  be 
  largely 
  mixed 
  with 
  glistening 
  yellowish 
  or 
  cream-buff 
  hair, 
  posterior 
  

   angles 
  of 
  first 
  and 
  lateral 
  extremities 
  of 
  two 
  following 
  tergites, 
  posterior 
  angles 
  

   of 
  fourth 
  to 
  seventh 
  tergites 
  inclusive, 
  hind 
  margins 
  of 
  sixth 
  and 
  seventh 
  tergites 
  

   and 
  junction 
  of 
  median 
  stripe 
  with 
  hind 
  margin 
  on 
  the 
  four 
  preceding 
  tergites 
  

  

  Fig. 
  2. 
  Haematopota 
  sewelli, 
  Austen 
  : 
  a, 
  head 
  of 
  $ 
  from 
  above 
  ; 
  a' 
  

   antenna 
  of 
  $ 
  in 
  profile 
  ; 
  b, 
  head 
  of 
  $ 
  in 
  profile, 
  X 
  14. 
  

  

  Fig. 
  3. 
  

  

  Haematopota 
  sewelli, 
  Austen, 
  

   wing 
  of 
  $. 
  X 
  6. 
  

  

  clothed 
  with 
  bright, 
  glistening, 
  cream-bufT 
  hair, 
  downwardly 
  curved 
  lateral 
  

   extremities 
  of 
  first 
  tergite 
  clothed 
  with 
  whitish 
  hair 
  ; 
  venter 
  in 
  <J 
  mouse 
  grey 
  or 
  

   deep 
  mouse 
  grey 
  (seventh 
  segment 
  dark 
  mouse 
  grey), 
  a 
  larger 
  or 
  smaller 
  area 
  at 
  

   lateral 
  extremities 
  of 
  second 
  and 
  third 
  segments 
  light 
  greyish 
  pollinose 
  ochraceous- 
  

   . 
  salmon, 
  hind 
  margins 
  of 
  second 
  and 
  following 
  segments 
  light 
  ochraceous 
  buff 
  ; 
  

   venter 
  in 
  (J 
  clothed 
  with 
  fine, 
  whitish 
  or 
  yellowish 
  hair, 
  seventh 
  segment, 
  except 
  

   lateral 
  extremities, 
  with 
  usual 
  coarse, 
  erect, 
  black 
  hair, 
  central 
  area 
  of 
  sixth 
  segment 
  

   usually 
  with 
  finer 
  black 
  hair 
  ; 
  dorsum 
  in 
  $ 
  blackish 
  brown 
  or 
  dark 
  blackish 
  brown, 
  

   each 
  segment 
  with 
  a 
  pair 
  of 
  relatively 
  large, 
  greyish 
  olive 
  or 
  deep 
  greyish 
  olive, 
  

   rounded, 
  admedian 
  spots, 
  resting 
  on 
  front 
  margin 
  and 
  not 
  reaching 
  hind 
  border 
  ; 
  

   J_atter, 
  as 
  well 
  as 
  posterior 
  angles 
  of 
  each 
  segment, 
  a 
  median, 
  sub-triangular 
  fleck 
  

  

  