﻿CONTRIBUTION 
  TO 
  KNOWLEDGE 
  OF 
  TABANIDAE 
  OF 
  PALESTINE. 
  

  

  303 
  

  

  shape 
  evidently 
  dependent 
  upon 
  degree 
  of 
  rubbing 
  to 
  which 
  the 
  specimen 
  has 
  been 
  

   subjected 
  ; 
  ocellar 
  tubercle 
  in 
  <§ 
  very 
  small 
  and 
  inconspicuous, 
  situate 
  at 
  bottom 
  

   of 
  cleft 
  between 
  eyes 
  at 
  vertex, 
  no 
  trace 
  of 
  ocellar 
  tubercle 
  in 
  9. 
  ; 
  subcallus 
  in 
  $ 
  

   pinkish 
  buff 
  pollinose, 
  with 
  a 
  more 
  or 
  less 
  distinct 
  indication 
  of 
  a 
  tawny-olive 
  or 
  

   light 
  mummy-brown 
  transverse 
  band 
  extending 
  from 
  eye 
  to 
  eye 
  at 
  level 
  of 
  antennae 
  ; 
  

   eyes 
  under 
  an 
  ordinary 
  hand-lens 
  appearing 
  bare 
  in 
  both 
  sexes 
  (closer 
  scrutiny 
  

   sometimes 
  reveals 
  scattered 
  minute 
  hairs 
  on 
  lower 
  portions), 
  eyes 
  in 
  <J 
  each 
  with 
  

   a 
  bluntly 
  triangular 
  area 
  of 
  greatly 
  and 
  abruptly 
  enlarged 
  facets, 
  partly 
  encircled 
  

   with 
  a 
  sharply 
  contrasted 
  zone 
  of 
  small 
  facets 
  occupying 
  approximately 
  lower 
  

   fourth 
  and 
  outer 
  and 
  upper 
  border, 
  latter 
  being 
  continued 
  to 
  vertex 
  in 
  practically 
  

   its 
  full 
  width 
  ; 
  eyes 
  of 
  $ 
  in 
  life 
  dark 
  green, 
  with 
  purplish-brown 
  sheen 
  and 
  without 
  

   bands 
  ; 
  palpi 
  of 
  (J 
  clothed 
  with 
  whitish 
  hair, 
  terminal 
  segment 
  cream-coloured, 
  

   greatly 
  swollen, 
  ovate 
  pyrif 
  orm 
  and 
  ending 
  in 
  a 
  small 
  curved 
  point, 
  proximal 
  segment 
  

   of 
  $ 
  palpi 
  clothed 
  with 
  fairly 
  long, 
  whitish 
  hair, 
  terminal 
  segment 
  of 
  $ 
  palpi 
  long 
  

  

  Fig. 
  7. 
  Tabanus 
  rwpinae, 
  Austen, 
  $. 
  x 
  4. 
  

  

  acuminate, 
  considerably 
  swollen 
  at 
  base, 
  cream-coloured 
  or 
  ivory-yellow, 
  clothed 
  

   on 
  outer 
  side 
  with 
  short, 
  appressed, 
  glistening 
  hair 
  of 
  similar 
  colour 
  (occasionally 
  

   intermixed 
  with 
  a 
  few 
  minute 
  black 
  hairs 
  towards 
  distal 
  extremity), 
  and 
  with 
  

   longer 
  whitish 
  hair 
  at 
  base 
  below 
  ; 
  first 
  joint 
  of 
  antennae 
  cinnamon-buff, 
  cream- 
  

   buff 
  pollinose, 
  clothed 
  with 
  minute, 
  appressed, 
  glistening 
  yellowish 
  or 
  whitish 
  

   hair, 
  with 
  longer 
  pale 
  hair 
  below, 
  and 
  with 
  minute 
  black 
  hairs 
  on 
  upper 
  distal 
  angle, 
  

   considerably 
  swollen 
  and 
  expanded 
  distally 
  and 
  partly 
  embracing 
  second 
  joint, 
  

   latter 
  agreeing 
  with 
  first 
  joint 
  in 
  coloration 
  and 
  in 
  its 
  hairy 
  covering 
  and 
  with 
  its 
  

   upper 
  distal 
  angle 
  considerably 
  produced, 
  third 
  joint 
  cinnamon, 
  annulate 
  portion 
  

   infuscated 
  at 
  tip, 
  at 
  least 
  in 
  dried 
  specimens, 
  expanded 
  portion 
  narrow 
  and 
  elongate 
  

   in 
  (J, 
  of 
  considerable 
  depth 
  in 
  $, 
  with 
  a 
  prominent 
  but 
  blunt 
  angle 
  near 
  base 
  of 
  

   upper 
  margin 
  in 
  both 
  cases. 
  . 
  Thorax 
  : 
  anterior 
  border 
  of 
  dorsum 
  in 
  certain 
  

   specimens 
  showing 
  more 
  or 
  less 
  distinct 
  vestiges 
  of 
  three 
  pallid 
  neutral 
  grey 
  

  

  