﻿298 
  

  

  ERNEST 
  E. 
  AUSTEN. 
  

  

  Near 
  Mulebbis 
  (Jaffa 
  district), 
  U.v.1918 
  : 
  caught 
  by 
  Lt-Col. 
  E. 
  P. 
  Sewell, 
  C.M.G., 
  

   D.S.O., 
  R.A.M.C., 
  from 
  a 
  light 
  Ford 
  motor-car 
  (which 
  the 
  insect 
  was 
  pursuing) 
  

   travelling 
  at 
  20 
  miles 
  an 
  hour 
  across 
  a 
  grassy 
  plain 
  ; 
  more 
  than 
  one 
  specimen 
  seen. 
  

  

  Apart 
  from 
  its 
  smaller 
  size, 
  the 
  species 
  just 
  described 
  presents 
  a 
  superficial 
  

   resemblance 
  to 
  Tabanus 
  aterrimus 
  var. 
  auripilus, 
  Mg., 
  but 
  is 
  distinguishable, 
  

   inter 
  alia, 
  by 
  the 
  elongate 
  frontal 
  callus 
  of 
  the 
  $, 
  and 
  by 
  the 
  conspicuously 
  ochreous 
  

   coloration 
  of 
  the 
  base 
  of 
  the 
  wing. 
  

  

  72RZI. 
  

  

  Fig. 
  5. 
  Tabanus 
  alexandrinus, 
  

   Wied., 
  head 
  of 
  $ 
  (typical 
  

   form) 
  in 
  profile. 
  X 
  about 
  10. 
  

  

  Fig. 
  0. 
  Tabanus 
  insecutor, 
  Austen, 
  $: 
  a, 
  head 
  from 
  in 
  front 
  ; 
  b, 
  head 
  

   in 
  profile, 
  showing 
  shape 
  of 
  antenna. 
  X 
  10. 
  

  

  Tabanus 
  insecutor 
  is 
  allied 
  to 
  T. 
  umbrinus, 
  Mg., 
  with 
  which 
  it 
  agrees 
  in 
  the 
  

   character 
  of 
  the 
  frontal 
  callus 
  of 
  the 
  $, 
  the 
  coloration 
  of 
  the 
  eyes, 
  and 
  the 
  shape 
  

   of 
  the 
  terminal 
  segment 
  of 
  the 
  $ 
  palpi 
  ; 
  the 
  new 
  species 
  may 
  however 
  be 
  

   distinguished, 
  inter 
  alia, 
  by 
  the 
  much 
  greater 
  development 
  of 
  the 
  pale 
  yellow 
  hair 
  

  

  