﻿280 
  

  

  E. 
  W. 
  EDWARDS. 
  

  

  distinguishable 
  from 
  those 
  of 
  T. 
  aurites 
  or 
  from 
  those 
  of 
  T. 
  fuscopennatus, 
  though 
  

   both 
  of 
  these 
  species 
  are 
  distinct 
  enough 
  from 
  T. 
  auripennis 
  and 
  from 
  one 
  another 
  

   in 
  coloration. 
  

  

  Uganda 
  : 
  Entebbe 
  (Capt. 
  E. 
  D. 
  W. 
  Greig, 
  I. 
  M.S.), 
  1 
  <J 
  1 
  2 
  (types) 
  ; 
  Sudan 
  : 
  

   Bahr-el-Jebel 
  {Dr. 
  A. 
  Balfour), 
  2 
  ?. 
  

  

  The 
  specimens 
  originally 
  stood 
  in 
  the 
  British 
  Museum 
  collection 
  as 
  T. 
  aurites 
  ; 
  

   subsequently 
  I 
  determined 
  them 
  as 
  T. 
  microannulatus, 
  recording 
  them 
  as 
  such 
  in 
  

   Bull. 
  Ent. 
  Kes. 
  iii, 
  p. 
  26. 
  

  

  T. 
  chubbi, 
  sp. 
  nov. 
  

  

  An 
  almost 
  uniformly 
  yellow 
  species, 
  like 
  the 
  preceding 
  ; 
  there 
  are, 
  however, 
  

   black 
  scales 
  on 
  the 
  tips 
  of 
  the 
  palpi, 
  the 
  proboscis, 
  and 
  the 
  tarsal 
  joints, 
  and 
  

   scattered 
  black 
  scales 
  on 
  the 
  femora 
  ; 
  on 
  the 
  wings 
  the 
  scales 
  of 
  the 
  fourth, 
  fifth 
  

   and 
  sixth 
  longitudinal 
  veins 
  are 
  mostly 
  black, 
  so 
  that 
  to 
  the 
  naked 
  eye 
  the 
  wing 
  

   appears 
  dark 
  on 
  the 
  lower 
  basal 
  part 
  and 
  yellow 
  elsewhere 
  ; 
  on 
  the 
  remaining 
  veins 
  

   (except 
  the 
  costa) 
  there 
  are 
  a 
  few 
  dark 
  scales. 
  The 
  scales 
  of 
  the 
  hind 
  tibiae 
  are 
  

   appressed. 
  The 
  male 
  genitalia 
  closely 
  resemble 
  those 
  of 
  T. 
  aurites 
  except 
  in 
  the 
  

   claspers 
  (fig. 
  3, 
  a), 
  which 
  are 
  relatively 
  larger 
  and 
  have 
  a 
  larger 
  membranous 
  lobe, 
  

   and 
  also 
  are 
  more 
  hairy 
  towards 
  the 
  tip. 
  The 
  clasper 
  of 
  T. 
  aurites 
  is 
  shown 
  for 
  

   comparison 
  (fig. 
  3, 
  b). 
  

  

  Fig. 
  3. 
  Male 
  claspers 
  of 
  : 
  — 
  (a) 
  Taeniorhynchus 
  chubbi, 
  sp. 
  n. 
  

   Theo. 
  ; 
  (c) 
  T. 
  chrysosoma, 
  sp. 
  n. 
  

  

  (b) 
  T. 
  aurites, 
  

  

  Natal 
  : 
  Umbilo, 
  Durban, 
  under 
  mango 
  trees 
  and 
  in 
  grass 
  near 
  water, 
  September 
  

   1914 
  (L. 
  Bevis) 
  ; 
  6 
  <} 
  (including 
  type) 
  2 
  ?. 
  

  

  Named 
  in 
  honour 
  of 
  Mr. 
  E. 
  G. 
  Chubb, 
  Curator 
  of 
  the 
  Durban 
  Museum, 
  who 
  has 
  

   greatly 
  added 
  to 
  our 
  knowledge 
  of 
  Natal 
  Diptera, 
  and 
  through 
  whom 
  these 
  speci- 
  

   mens 
  were 
  received. 
  

  

  The 
  much 
  darker 
  wings 
  should 
  be 
  sufficient 
  to 
  distinguish 
  this 
  form 
  specifically 
  

   from 
  T. 
  mi-croannulatus 
  ; 
  no 
  more 
  satisfactory 
  distinction 
  can 
  be 
  pointed 
  out, 
  since 
  

   the 
  male 
  of 
  the 
  latter 
  is 
  unknown. 
  

  

  