﻿316 
  

  

  S. 
  A. 
  NEAVE. 
  

  

  of 
  T. 
  grains 
  and 
  resembled 
  the 
  larva 
  of 
  T. 
  variabilis 
  in 
  bearing 
  lateral 
  pseudopodia 
  

   on 
  the 
  anal 
  segment. 
  It 
  was, 
  however, 
  of 
  a 
  yellower 
  colour 
  and 
  less 
  transparent 
  

   than 
  that 
  species, 
  and 
  lacked 
  any 
  pigmentation 
  on 
  the 
  syphon. 
  

  

  The 
  pupal 
  aster 
  is 
  remarkable 
  for 
  the 
  great 
  size 
  and 
  elongation 
  horizontally 
  of 
  

   the 
  middle 
  pair 
  of 
  hooks. 
  The 
  dorso-lateral 
  comb 
  is 
  reduced 
  to 
  two 
  very 
  short 
  

   processes, 
  the 
  main 
  combs 
  on 
  the 
  last 
  segment 
  being 
  also 
  of 
  this 
  character, 
  as 
  may 
  

   be 
  seen 
  from 
  the 
  view 
  in 
  profile 
  (fig. 
  26, 
  a'). 
  

  

  Tabanus 
  pertinens, 
  Aust. 
  

  

  This 
  fly, 
  which 
  is 
  usually 
  confined 
  to 
  comparatively 
  low-lying 
  country 
  where 
  

   the 
  river 
  beds 
  are 
  of 
  a 
  sandy 
  nature, 
  does 
  not 
  occur 
  at 
  Mt. 
  Mlanje 
  itself, 
  though 
  

   a 
  few 
  specimens 
  were 
  taken 
  at 
  some 
  distance 
  from 
  the 
  mountain, 
  particularly 
  to 
  

   the 
  south, 
  on 
  the 
  Kola 
  River 
  in 
  Portuguese 
  territory. 
  It 
  was 
  not 
  uncommon 
  on 
  

   the 
  Mwanza 
  River, 
  in 
  the 
  Shire 
  valley, 
  as 
  early 
  as 
  the 
  end 
  of 
  July. 
  

  

  A 
  pigmented 
  larva 
  (Plate 
  xxviii, 
  fig. 
  11), 
  which 
  it 
  is 
  thought 
  may 
  belong 
  to 
  

   this 
  species, 
  was 
  taken 
  in 
  some 
  numbers 
  in 
  the 
  Shire 
  River 
  in 
  August, 
  and 
  in 
  the 
  

   Ruo 
  River 
  in 
  October. 
  It 
  was 
  found 
  in 
  both 
  cases 
  in 
  water 
  amongst 
  the 
  roots 
  of 
  

   grasses 
  or 
  water-plants, 
  and 
  seems 
  to 
  prefer 
  livers 
  with 
  a 
  sandy 
  bottom 
  and 
  banks. 
  

   The 
  striking 
  larva 
  is 
  remarkable 
  for 
  the 
  development 
  of 
  the 
  dorsal 
  pseudopodia, 
  

   which 
  perhaps 
  are 
  associated 
  with 
  its 
  comparatively 
  free- 
  swimming 
  existence. 
  

   Two 
  pseudopodia 
  are 
  also 
  present 
  immediately 
  anterior 
  to 
  the 
  anus. 
  

  

  Tabanus 
  nagamiensis, 
  Carter. 
  

  

  This 
  recently 
  described 
  species 
  is 
  represented 
  by 
  a 
  single 
  female 
  captured 
  on 
  

   the 
  Malosa 
  River, 
  the 
  Anglo-Portuguese 
  boundary 
  south 
  of 
  Mt. 
  Mlanje, 
  on 
  the 
  

   8th 
  October 
  1913, 
  and 
  by 
  a 
  male 
  bred 
  from 
  a 
  collected 
  pupa 
  on 
  27th 
  September 
  

   1913, 
  so 
  that 
  it 
  would 
  appear 
  to 
  be 
  an 
  uncommon 
  species 
  in 
  this 
  locality. 
  The 
  eyes 
  

  

  Fig. 
  27. 
  Tabanus 
  nagamiensis, 
  Cart.,_ 
  $ 
  ; 
  (a) 
  pupal 
  aster, 
  X 
  35 
  ;■(«') 
  pupal 
  aster 
  

   from 
  the 
  side, 
  showing 
  combs, 
  the 
  dorso-lateral 
  comb 
  being 
  absent. 
  

  

  of 
  this 
  fly 
  in 
  the 
  female 
  are 
  of 
  a 
  reddish-purple 
  colour, 
  crossed 
  with 
  two 
  bands 
  of 
  

   green 
  slightly 
  outlined 
  in 
  yellow. 
  In 
  the 
  male 
  the 
  large 
  upper 
  facets 
  are 
  purplish- 
  

   brown, 
  with 
  a 
  narrow 
  line 
  of 
  greenish 
  on 
  the 
  lower 
  margin 
  ; 
  the 
  lower 
  facets 
  are 
  

   dull 
  purplish, 
  with 
  a 
  single 
  greenish 
  band 
  narrowly 
  outlined 
  in 
  scarlet. 
  

  

  