﻿242 
  PROF. 
  M. 
  BEZZI. 
  

  

  yellowish 
  towards 
  the 
  antennal 
  grooves 
  and 
  on 
  the 
  sides 
  ; 
  cheeks 
  whitish 
  ; 
  jowls 
  

   unspotted. 
  Antennae 
  entirely 
  pale 
  yellowish, 
  the 
  third 
  joint 
  a 
  little 
  infuscated 
  

   along 
  the 
  upper 
  border 
  ; 
  arista 
  pale 
  yellowish 
  at 
  base. 
  Palpi 
  yellowish 
  ; 
  proboscis 
  

   dirty 
  brownish. 
  All 
  the 
  cephalic 
  bristles 
  are 
  black 
  and 
  rather 
  thin 
  ; 
  the 
  frontal 
  

   stripe 
  seems 
  to 
  be 
  bare 
  on 
  the 
  middle. 
  Thorax 
  black 
  on 
  the 
  back, 
  but 
  clothed 
  

   with 
  greyish 
  dust 
  and 
  with 
  three 
  narrow 
  parallel 
  longitudinal 
  black 
  stripes, 
  those 
  

   on 
  the 
  dorsocentral 
  lines 
  extending 
  about 
  to 
  the 
  scutellum, 
  while 
  the 
  middle 
  one 
  

   is 
  abbreviated 
  behind 
  the 
  transverse 
  suture. 
  The 
  short 
  pubescence 
  of 
  the 
  back 
  

   is 
  black. 
  The 
  shoulders, 
  the 
  notopleural 
  suture 
  and 
  the 
  postalar 
  calli 
  are 
  reddish 
  

   brown, 
  like 
  the 
  pleurae, 
  which 
  are 
  blackened 
  on 
  the 
  middle 
  of 
  the 
  meso- 
  and 
  sterno- 
  

   pleura, 
  but 
  are 
  pale 
  yellowish 
  on 
  the 
  pteropleura, 
  forming 
  thus 
  a 
  broad 
  perpendicular 
  

   stripe 
  ; 
  hypopleura 
  blackish 
  and 
  shining, 
  like 
  the 
  postscutellum 
  and 
  the 
  meso- 
  

   phragma. 
  Scutellum 
  entirely 
  yellowish 
  with 
  a 
  narrow 
  black 
  basal 
  band. 
  All 
  

   the 
  thoracic 
  bristles 
  are 
  black 
  and 
  rather 
  thin. 
  Squamulae 
  dirty 
  brownish 
  ; 
  halteres 
  

   pale 
  yellowish. 
  Abdomen 
  black, 
  shining, 
  but 
  with 
  dark 
  dust 
  ; 
  pubescence 
  and 
  

   bristles 
  black 
  ; 
  genitalia 
  yellow, 
  black 
  above 
  and 
  behind 
  ; 
  the 
  unpaired 
  and 
  strong 
  

   appendage 
  of 
  the 
  underside 
  is 
  similarly 
  yellow. 
  Legs 
  pale 
  yellowish, 
  but 
  the 
  four 
  

   posterior 
  femora 
  above 
  on 
  the 
  apical 
  half, 
  and 
  all 
  the 
  tibiae 
  except 
  the 
  tip, 
  are 
  more 
  

   or 
  less 
  blackened 
  ; 
  bristles 
  black, 
  those 
  of 
  the 
  front 
  femora 
  very 
  thin. 
  Wings 
  

   whitish 
  hyaline, 
  with 
  a 
  very 
  broad, 
  dark 
  brown 
  pattern 
  ; 
  an 
  abbreviated 
  stripe, 
  

   extending 
  from 
  the 
  middle 
  of 
  the 
  stigma 
  to 
  the 
  third 
  longitudinal 
  vein 
  is 
  yellow. 
  

   Veins 
  yellow, 
  but 
  darkened 
  on 
  the 
  dark 
  parts. 
  Costal 
  bristle 
  very 
  small. 
  Extreme 
  

   base 
  of 
  the 
  wing 
  hyaline 
  ; 
  an 
  arcuate 
  brown 
  band 
  begins 
  along 
  the 
  costa, 
  filling 
  

   up 
  the 
  whole 
  of 
  the 
  first 
  and 
  the 
  base 
  of 
  the 
  second 
  costal 
  cell, 
  and 
  becoming 
  gradually 
  

   broader 
  passes 
  over 
  the 
  middle 
  of 
  the 
  second 
  basal 
  cell, 
  fills 
  up 
  the 
  whole 
  of 
  the 
  

   anal 
  cell 
  and 
  is 
  prolonged 
  as 
  an 
  acute 
  stripe 
  along 
  the 
  sixth 
  longitudinal 
  vein, 
  ending 
  

   with 
  a 
  point 
  at 
  the 
  hind 
  border 
  of 
  the 
  wing. 
  The 
  axillary 
  lobe 
  and 
  the 
  alula 
  are 
  

   quite 
  hyaline. 
  After 
  this 
  dark 
  band 
  there 
  is 
  a 
  narrow, 
  complete 
  hyaline 
  band, 
  

   going 
  from 
  the 
  middle 
  of 
  the 
  second 
  costal 
  cell, 
  over 
  the 
  apex 
  of 
  the 
  second 
  basal 
  

   cell 
  and 
  over 
  the 
  base 
  of 
  the 
  third 
  posterior 
  cell, 
  to 
  the 
  hind 
  border 
  of 
  the 
  wing. 
  

   The 
  extensive 
  brown 
  pattern 
  of 
  the 
  broadened 
  apical 
  half 
  of 
  the 
  wing 
  is 
  thus 
  sharply 
  

   separated 
  from 
  the 
  basal 
  one 
  ; 
  it 
  consists 
  of 
  a 
  rounded, 
  very 
  broad 
  patch, 
  which 
  

   occupies 
  the 
  whole 
  of 
  the 
  discoidal 
  cell, 
  and 
  the 
  greater 
  part 
  of 
  the 
  submarginal 
  

   and 
  first 
  basal 
  cells, 
  and 
  the 
  entire 
  third 
  posterior 
  cell. 
  At 
  the 
  fore 
  border 
  there 
  

   is 
  the 
  yellow 
  stigmatic 
  indentation, 
  and 
  after 
  this 
  a 
  broader 
  triangular 
  oblique 
  

   hyaline 
  indentation, 
  which 
  reaches 
  with 
  its 
  obtuse 
  point 
  the 
  fourth 
  vein, 
  entering 
  

   the 
  end 
  of 
  the 
  first 
  basal 
  cell 
  ; 
  from 
  this 
  indentation 
  departs 
  a 
  rather 
  narrow 
  hyaline 
  

   arcuate 
  band, 
  which, 
  running 
  along 
  the 
  fore 
  border, 
  from 
  which 
  it 
  is 
  separated 
  

   by 
  a 
  narrower 
  brown 
  costal 
  band, 
  ends 
  in 
  the 
  upper 
  angle 
  of 
  the 
  second 
  posterior 
  

   .-cell. 
  The 
  yellow 
  stigma 
  is 
  blackish 
  brown 
  at 
  base 
  and 
  on 
  the 
  lower 
  spical 
  half. 
  

   Type 
  (J, 
  a 
  single 
  specimen 
  from 
  Natal, 
  Verulam, 
  vii. 
  1897, 
  collected 
  by 
  Dr. 
  G. 
  

   A. 
  K. 
  Marshall, 
  in 
  whose 
  honour 
  this 
  fine 
  insect 
  is 
  named. 
  

  

  Notomma, 
  gen. 
  nov. 
  

   The 
  present 
  genus 
  is 
  erected 
  here 
  for 
  a 
  species 
  which 
  has 
  a 
  wing 
  pattern 
  recalling 
  

   that 
  of 
  Xanthorrhachista, 
  from 
  which 
  it 
  differs 
  in 
  general 
  appearance 
  and 
  in 
  the 
  

  

  