﻿151 
  

  

  FURTHER 
  NOTES 
  ON 
  THE 
  TABANIDAE 
  OF 
  PALESTINE, 
  

   WITH 
  DESCRIPTIONS 
  OF 
  NEW 
  SPECIES. 
  

  

  By 
  Major 
  E. 
  E. 
  Austen, 
  D.S.O. 
  

  

  During 
  the 
  two 
  years 
  that 
  have 
  elapsed 
  since 
  the 
  publication 
  by 
  the 
  writer 
  of 
  a 
  

   previous 
  paper 
  on 
  Palestine 
  Tabanidae,* 
  a 
  small 
  amount 
  of 
  material 
  belonging 
  to 
  

   this 
  family 
  has 
  been 
  received 
  from 
  the 
  same 
  country. 
  With 
  one 
  exception, 
  for 
  the 
  

   Diptera 
  in 
  question 
  — 
  which, 
  though 
  few 
  in 
  number, 
  present 
  several 
  points 
  of 
  interest, 
  

   besides 
  including 
  representatives 
  of 
  two 
  new 
  species 
  — 
  the 
  National 
  Collection 
  is 
  

   indebted 
  to 
  the 
  kindness 
  of 
  either 
  Mr. 
  P. 
  A. 
  Buxton 
  or 
  Mr. 
  I. 
  Aharoni. 
  

  

  The 
  types 
  of 
  the 
  new 
  species, 
  as 
  well 
  as 
  the 
  other 
  specimens 
  referred 
  to 
  below, 
  are 
  

   in 
  the 
  British 
  Museum 
  (Natural 
  History). 
  

  

  Pangoniinae. 
  

   Genus 
  Chrysops, 
  Meigen. 
  

  

  As 
  stated 
  by 
  the 
  author 
  in 
  his 
  former 
  paper 
  (loc. 
  cit., 
  p. 
  278), 
  the 
  only 
  member 
  

   of 
  this 
  genus 
  met 
  with 
  by 
  him 
  from 
  Deir 
  el 
  Belah 
  to 
  Haifa, 
  during 
  upwards 
  of 
  

   18 
  months' 
  service 
  in 
  Palestine 
  in 
  1917-18, 
  was 
  Chrysops 
  punctifera, 
  Lw. 
  Mr. 
  Buxton 
  

   is 
  therefore 
  heartily 
  to 
  be 
  congratulated 
  upon 
  the 
  discovery 
  of 
  the 
  species 
  described 
  

   below. 
  

  

  Chrysops 
  buxtoni, 
  sp. 
  n. 
  (figs. 
  1, 
  2, 
  3). 
  

  

  3 
  $. 
  — 
  Length, 
  J 
  (four 
  specimens) 
  8-5 
  to 
  9-4 
  mm., 
  $ 
  (four 
  specimens) 
  7-75 
  to 
  

  

  8-75 
  mm. 
  ; 
  width 
  of 
  head, 
  <J 
  3-5 
  to 
  3-75 
  mm., 
  $ 
  3 
  to 
  just 
  under 
  3-5 
  mm. 
  ; 
  

  

  ct, 
  eyes 
  meeting 
  in 
  centre 
  of 
  top 
  of 
  head 
  for 
  a 
  distance 
  of 
  about 
  • 
  5 
  mm. 
  ; 
  $, 
  width 
  

  

  of 
  front 
  at 
  vertex 
  1 
  -25 
  to 
  just 
  under 
  1 
  -5 
  mm. 
  ; 
  length 
  of 
  wing, 
  <$ 
  7-6 
  to 
  just 
  under 
  

  

  8 
  mm., 
  $ 
  6-75 
  to 
  7-2 
  mm. 
  

  

  Medium-sized, 
  stoutly 
  built, 
  thick-set 
  species, 
  with 
  an 
  unusually 
  broad 
  head 
  in 
  both 
  

   sexes, 
  with 
  abdominal 
  markings 
  as 
  shown 
  ififigs. 
  2 
  and 
  3, 
  and 
  in 
  both 
  sexes 
  with 
  wing- 
  

   markings 
  as 
  in 
  Jig. 
  3 
  ; 
  legs 
  mainly 
  black, 
  front 
  tibiae 
  at 
  base, 
  and 
  middle 
  and 
  hind 
  

   tibiae 
  except 
  distal 
  extremities 
  ochraceous-tawny 
  .j 
  

  

  Head 
  in 
  both 
  sexes 
  olive-buff 
  pollinose 
  or 
  pale 
  olive-buff 
  pollinose, 
  clothed 
  with 
  

   fine 
  hair 
  of 
  similar 
  colour, 
  which 
  on 
  face 
  and 
  jowls 
  of 
  <$ 
  is 
  especially 
  dense 
  and 
  long 
  ; 
  

   ocelligerous 
  tubercle 
  in 
  $ 
  black, 
  large, 
  swollen 
  and 
  prominent, 
  thinly 
  covered 
  with 
  

   greyish 
  pollen, 
  and 
  clothed 
  in 
  front 
  with 
  fine 
  black 
  or 
  blackish 
  hair 
  ; 
  apex 
  of 
  frontal 
  

   triangle 
  in 
  same 
  sex 
  shining 
  black, 
  in 
  certain 
  specimens 
  occupied 
  by 
  a 
  minute 
  ovate 
  

   or 
  elongate 
  ovate 
  tubercle, 
  which 
  sometimes 
  has 
  an 
  elongate 
  depression 
  in 
  its 
  upper 
  

   extremity 
  ; 
  face 
  and 
  jowls 
  in 
  <$ 
  uniformly 
  pollinose, 
  without 
  shining 
  tubercles 
  or 
  

   other 
  areas 
  ; 
  $ 
  with 
  a 
  more 
  or 
  less 
  shining 
  black 
  area 
  (roughly 
  triangular 
  in 
  shape, 
  

   with 
  prominent, 
  rounded 
  angles) 
  surrounding 
  the 
  ocelli, 
  and 
  in 
  well-preserved 
  

   specimens 
  not 
  connected 
  with 
  the 
  eyes, 
  though 
  traces 
  of 
  a 
  black 
  transverse 
  band 
  

   uniting 
  it 
  to 
  the 
  eye 
  on 
  each 
  side 
  are 
  sometimes 
  visible 
  ; 
  frontal 
  callus 
  in 
  $ 
  shining 
  

  

  * 
  Cf. 
  E. 
  E. 
  Austen, 
  " 
  A 
  Contribution 
  to 
  Knowledge 
  of 
  the 
  Tabanidae 
  of 
  Palestine 
  " 
  : 
  Bull. 
  

   Ent. 
  Res. 
  x, 
  pp. 
  277-321, 
  figs. 
  1-18 
  (April 
  1920). 
  

  

  f 
  For 
  names 
  and 
  illustrations 
  of 
  colours 
  used 
  for 
  descriptive 
  purposes 
  in 
  the 
  present 
  paper 
  

   see 
  Ridgway, 
  " 
  Color 
  Standards 
  and 
  Color 
  Nomenclature 
  " 
  (Washington, 
  D.C. 
  Published 
  by 
  

   the 
  Author, 
  1912.) 
  

  

  