﻿278 
  ERNEST 
  E. 
  AUSTEN. 
  

  

  of 
  surra 
  diagnosed 
  among 
  animals 
  belonging 
  to 
  the 
  Camel 
  Transport 
  Corps 
  failed 
  

   to 
  spread, 
  and 
  were 
  by 
  no 
  means 
  certainly 
  contracted 
  in 
  Palestine. 
  

  

  While, 
  somewhat 
  curiously, 
  no 
  species 
  of 
  Pangonia* 
  was 
  met 
  with, 
  and 
  the 
  large 
  

   numbers 
  of 
  specimens 
  of 
  Chrysops 
  encountered 
  all 
  proved 
  to 
  belong 
  to 
  the 
  same 
  

   species, 
  the 
  genus 
  Tabanus, 
  having 
  regard 
  to 
  the 
  relative 
  smallness 
  of 
  the 
  country 
  

   concerned, 
  was 
  found 
  to 
  be 
  decidedly 
  rich 
  in 
  species. 
  Of 
  this 
  genus, 
  examples 
  

   of 
  no 
  fewer 
  than 
  sixteen 
  species 
  were 
  collected, 
  and 
  of 
  these 
  seven, 
  or 
  the 
  high 
  

   proportion 
  of 
  43*7 
  per 
  cent., 
  are 
  apparently 
  new. 
  With 
  one 
  exception, 
  the 
  

   remainder 
  are 
  more 
  or 
  less 
  well 
  known 
  European 
  forms, 
  some 
  of 
  which 
  have 
  already 
  

   been 
  shown 
  to 
  occur 
  further 
  afield, 
  as 
  in 
  North 
  Africa, 
  Asia 
  Minor, 
  or 
  Persian 
  

   Baluchistan. 
  The 
  applicability 
  of 
  Loew's 
  generalisation, 
  already 
  quoted, 
  con- 
  

   cerning 
  the 
  Diptera 
  of 
  Syria, 
  when 
  transferred 
  to 
  those 
  of 
  Palestine, 
  at 
  least 
  as 
  

   represented 
  by 
  Tabanidae 
  of 
  the 
  genus 
  Tabanus, 
  is 
  therefore 
  obvious. 
  

  

  Attention 
  is 
  directed 
  to 
  the 
  pursuit 
  of 
  a 
  fast 
  travelling 
  motor 
  car 
  by 
  specimens 
  

   of 
  two 
  species 
  of 
  Tabanus 
  (cf. 
  pp. 
  298, 
  300), 
  one 
  of 
  which 
  proved 
  to 
  be 
  new. 
  Some 
  

   three 
  months 
  later, 
  a 
  second 
  instance 
  of 
  the 
  same 
  phenomenon 
  was 
  seen 
  under 
  

   precisely 
  similar 
  circumstances, 
  within 
  a 
  few 
  miles 
  of 
  the 
  same 
  spot, 
  the 
  species 
  

   concerned 
  in 
  this 
  case 
  being 
  probably 
  Tabanus 
  eggeri, 
  Schin., 
  though, 
  since 
  no 
  

   specimen 
  was 
  caught 
  on 
  this 
  occasion, 
  the 
  identification 
  is 
  uncertain. 
  In 
  

   Nyasaland, 
  tsetse-flies 
  of 
  the 
  species 
  known 
  as 
  Glossina 
  morsitans, 
  Westw., 
  have 
  

   been 
  observed 
  to 
  pursue 
  and 
  keep 
  pace 
  with 
  a 
  motor 
  cycle 
  travelling 
  at 
  high 
  speed, 
  

   and 
  the 
  attraction 
  exerted 
  upon 
  tsetse-flies 
  by 
  moving 
  animals 
  has 
  been 
  mentioned 
  

   by 
  more 
  than 
  one 
  observer. 
  So 
  far, 
  however, 
  as 
  the 
  writer 
  is 
  aware, 
  the 
  pursuit 
  

   of 
  a 
  motor 
  car 
  by 
  Tabanids 
  has 
  not 
  previously 
  been 
  recorded. 
  It 
  should 
  be 
  noted 
  

   that 
  the 
  chase 
  was 
  confined 
  to 
  short 
  distances, 
  so 
  that 
  the 
  chance 
  establishment 
  

   of 
  a 
  motor 
  route 
  passing 
  through 
  a 
  local 
  Tabanid 
  area 
  is 
  unlikely 
  to 
  have 
  much 
  

   effect 
  in 
  extending 
  the 
  distribution 
  of 
  species. 
  

  

  It 
  is 
  only 
  necessary 
  to 
  add 
  that 
  the 
  whole 
  of 
  the 
  material 
  referred 
  to 
  in 
  the 
  

   following 
  pages, 
  including 
  the 
  types 
  of 
  all 
  neAv 
  species, 
  is 
  in 
  the 
  British 
  Museum 
  

   (Natural 
  History). 
  

  

  Pangoniinae. 
  

   Genus 
  Chrysops, 
  Meigen. 
  

   In 
  so 
  far 
  as 
  a 
  definite 
  conclusion 
  is 
  warranted 
  by 
  the 
  author's 
  necessarily 
  limited 
  

   observations, 
  the 
  form 
  mentioned 
  below 
  would 
  appear 
  to 
  be 
  the 
  only 
  representative 
  

   of 
  its 
  genus 
  in 
  Palestine. 
  This 
  paucity 
  of 
  species, 
  however, 
  is 
  more 
  than 
  made 
  

   up 
  for 
  by 
  the 
  relative 
  ubiquity 
  and 
  absolute 
  aggressiveness 
  of 
  the 
  exemplar 
  con- 
  

   cerned. 
  

  

  Chrysops 
  puncfifera, 
  Lw. 
  (fig. 
  1). 
  

  

  Two 
  ??, 
  Wadi 
  Ghuzze, 
  nr. 
  Tel 
  el 
  Fara, 
  26.vi.1917, 
  biting 
  horse; 
  11^, 
  6$?, 
  

   same 
  locality, 
  23.vii.1917, 
  the 
  <J<J 
  numerous, 
  resting 
  on 
  rocky 
  bank 
  of 
  Wadi 
  and 
  

   on 
  plants 
  above 
  pool, 
  many 
  P$ 
  ovipositing 
  on 
  reeds 
  overhanging 
  water; 
  3^ 
  (J, 
  

   4$?, 
  same 
  locality, 
  8.viii.l917 
  ; 
  1(J, 
  Deir 
  el 
  Belah, 
  8 
  miles 
  S.-W. 
  of 
  Gaza, 
  31.viii. 
  

   1917; 
  lcJ, 
  12, 
  Wadi 
  Ghuzze, 
  near 
  El 
  Gamli, 
  12.ix.1917 
  ; 
  2?$, 
  Wadi 
  Ghuzze, 
  

  

  * 
  Bezzi 
  (loc. 
  tit, 
  p. 
  41, 
  Tab. 
  ix, 
  fig. 
  32) 
  describes 
  and 
  figures, 
  under 
  the 
  name 
  

   P. 
  sulcata, 
  a 
  new 
  species 
  of 
  Pangonia 
  from 
  Syria. 
  

  

  