﻿THE 
  TABANIDAE 
  OF 
  SOUTHERN 
  NYASALAND. 
  

  

  299 
  

  

  Chrysops 
  magnifica, 
  var. 
  inornata, 
  Aust. 
  

  

  This 
  species 
  is 
  by 
  no 
  means 
  an 
  uncommon 
  one 
  in 
  the 
  Mlanje 
  district. 
  It 
  is 
  on 
  the 
  

   wing 
  during 
  the 
  rains 
  from 
  October 
  to 
  April. 
  Males 
  are 
  scarce 
  in 
  the 
  field, 
  though 
  

   a 
  few 
  were 
  obtained. 
  On 
  the 
  23rd 
  December 
  and 
  again 
  on 
  the 
  20th 
  January, 
  1914, 
  

   a 
  pair 
  was 
  taken 
  in 
  coitu 
  on 
  rocks 
  in 
  the 
  bed 
  of 
  a 
  mountain 
  stream. 
  The 
  remarkable 
  

   point 
  about 
  the 
  males 
  of 
  this 
  variety 
  is 
  that 
  they 
  have 
  clearly 
  developed 
  the 
  two 
  

   longitudinal 
  black 
  abdominal 
  stripes 
  of 
  typical 
  C. 
  magnifica, 
  Aust., 
  from 
  German 
  East 
  

   Africa, 
  of 
  which, 
  however, 
  the 
  male 
  is 
  as 
  yet 
  unknown. 
  In 
  the 
  eyes 
  of 
  the 
  male 
  the 
  

   large 
  facets 
  are 
  iridescent 
  golden-green, 
  without 
  spots 
  or 
  marks, 
  the 
  small 
  facets 
  being 
  

   deep 
  ultramarine 
  blue, 
  with 
  zigzags 
  of 
  golden-green, 
  as 
  in 
  the 
  eye 
  of 
  the 
  female. 
  

  

  Fig. 
  7. 
  Pupal 
  aster 
  of 
  Chrysops 
  magnifica 
  var. 
  inornata, 
  Aust. 
  

   (a) 
  <J, 
  (b) 
  ?. 
  X 
  35. 
  

  

  A 
  few 
  examples, 
  7 
  (J^J 
  and 
  10 
  $$, 
  of 
  this 
  species 
  were 
  bred 
  during 
  October 
  and 
  

   November. 
  The 
  larva 
  so 
  closely 
  resembles 
  that 
  of 
  C. 
  longicornis, 
  Macq., 
  that 
  I 
  never 
  

   succeeded 
  in 
  satisfactorily 
  separating 
  it, 
  since 
  in 
  both 
  species 
  the 
  usually 
  distinctive 
  

   characters 
  of 
  the 
  pigmented 
  anal 
  segment 
  and 
  syphon 
  were 
  very 
  variable. 
  The 
  

   pupal 
  aster 
  resembles 
  that 
  of 
  C. 
  longicornis, 
  but 
  the 
  middle 
  pair 
  of 
  hooks 
  is 
  stouter 
  

   and 
  somewhat 
  more 
  curved, 
  and 
  the 
  shape 
  differs 
  somewhat, 
  especially 
  in 
  the 
  male. 
  

  

  Chrysops 
  fuscipennis, 
  Kic. 
  

  

  This 
  is 
  a 
  rare 
  species 
  in 
  the 
  Mlanje 
  district, 
  a 
  few 
  specimens 
  only 
  being 
  seen 
  in 
  

   January 
  and 
  February, 
  near 
  my 
  headquarters 
  and 
  also 
  to 
  the 
  north, 
  near 
  the 
  south- 
  

   west 
  shore 
  of 
  Lake 
  Chilwa. 
  This 
  seems 
  to 
  be 
  about 
  the 
  same 
  time 
  that 
  it 
  is 
  usually 
  

   taken 
  elsewhere 
  in 
  Nyasaland, 
  and 
  it 
  would 
  therefore 
  appear 
  to 
  be 
  a 
  decidedly 
  late 
  

   species, 
  as 
  the 
  great 
  majority, 
  if 
  not 
  all, 
  of 
  the 
  other 
  species 
  of 
  Chrysops 
  in 
  this 
  part 
  

   of 
  Africa 
  are 
  on 
  the 
  wing 
  before 
  the 
  rains 
  begin. 
  

  

  Chrysops 
  wellmani, 
  Aust. 
  

  

  This 
  species 
  occurs 
  in 
  fair 
  numbers 
  near 
  Mt. 
  Mlanje 
  from 
  September 
  to 
  January, 
  

   and 
  a 
  small 
  series 
  of 
  both 
  sexes 
  was 
  obtained. 
  The 
  hitherto 
  unknown 
  male 
  closely 
  

   resembles 
  that 
  of 
  C. 
  cana, 
  Aust. 
  (Bull. 
  Ent. 
  Res., 
  ii, 
  p. 
  166) 
  from 
  which 
  it 
  differs 
  in 
  

  

  Fig. 
  8. 
  Pupal 
  aster 
  of 
  Chrysops 
  wellmani, 
  

   (a) 
  <J, 
  (b) 
  $. 
  X 
  35. 
  

  

  Aust. 
  ; 
  

  

  some 
  particulars, 
  especially 
  in 
  the 
  pattern 
  of 
  the 
  eyes. 
  In 
  C. 
  wellmani 
  the 
  eyes 
  are 
  

   somewhat 
  natter 
  and 
  more 
  compressed 
  antero-posteriorly 
  than 
  in 
  C. 
  cana 
  and 
  are 
  of 
  

   a 
  black 
  colour, 
  the 
  lower 
  half 
  enclosing 
  six 
  irregular 
  spots 
  of 
  a 
  pale 
  iridescent 
  blue. 
  

  

  