﻿Manchester 
  Memoirs, 
  Vol. 
  xliii. 
  (1899), 
  No. 
  3 
  25 
  

  

  black. 
  Wings 
  hyaline, 
  the 
  stigma 
  and 
  nervures 
  black 
  ; 
  

   the 
  first 
  and 
  third 
  cubital 
  transverse 
  nervures 
  are 
  largely 
  

   bullated. 
  Abdomen 
  black 
  above 
  ; 
  the 
  base 
  of 
  the 
  third 
  

   segment 
  broadly 
  fulvous, 
  the 
  fulvous 
  band 
  dilated 
  at 
  the 
  

   sides 
  and 
  middle 
  ; 
  the 
  ventral 
  segments 
  broadly 
  banded 
  

   with 
  yellow 
  ; 
  the 
  apical 
  entirely 
  yellow. 
  

  

  The 
  antennae 
  are 
  longer 
  than 
  usual 
  for 
  a 
  Macrophya, 
  

   but 
  on 
  the 
  whole 
  it 
  agrees 
  better 
  with 
  that 
  genus 
  than 
  with 
  

   Pachyprotasis 
  ; 
  the 
  hinder 
  coxae 
  and 
  legs 
  are 
  also 
  longer 
  

   than 
  usual 
  ; 
  the 
  coxae 
  reach 
  near 
  to 
  the 
  apex 
  of 
  the 
  

   fifth 
  abdominal 
  segment. 
  There 
  is 
  no 
  cross 
  nervure 
  in 
  

   the 
  lanceolate 
  cellule, 
  which 
  is 
  divided 
  into 
  two 
  by 
  a 
  con- 
  

   siderably 
  greater 
  space 
  than 
  in 
  M.foveifrons. 
  The 
  white 
  

   tip 
  of 
  the 
  antennae 
  is 
  unusual 
  for 
  a 
  Macrophya. 
  

  

  Allantus 
  marginiceps, 
  sp. 
  nov. 
  

  

  Niger 
  ; 
  ore, 
  abdominis 
  basi, 
  coxis, 
  trocJianteribus 
  tibiis- 
  

   que 
  late 
  Jlavis, 
  alls 
  violaceo 
  -Jumatis, 
  stigmate 
  sordide 
  

   testaceo. 
  $ 
  . 
  

  

  Long. 
  16 
  mm. 
  

  

  Antennae 
  scarcely 
  so 
  long 
  as 
  the 
  thorax 
  ; 
  the 
  six 
  

   apical 
  joints 
  distinctly 
  thickened, 
  almost 
  bare. 
  Head 
  

   black, 
  the 
  clypeus 
  and 
  labrum 
  yellow, 
  shining, 
  impunctate, 
  

   sparsely 
  covered 
  with 
  short, 
  white 
  hair. 
  The 
  front 
  is 
  

   broadly 
  and 
  deeply 
  hollowed, 
  the 
  hollow 
  divided 
  in 
  two 
  

   by 
  a 
  transverse 
  partition. 
  The 
  vertex 
  in 
  the 
  middle 
  

   behind 
  is 
  raised, 
  the 
  raised 
  part 
  broader 
  than 
  long 
  and 
  

   bounded 
  by 
  a 
  deep 
  furrow, 
  which 
  is, 
  if 
  anything, 
  broader, 
  

   deeper, 
  and 
  more 
  curved 
  at 
  the 
  sides 
  than 
  at 
  the 
  apex 
  ; 
  

   the 
  ocelli 
  on 
  the 
  outer 
  side 
  are 
  bounded 
  by 
  a 
  deep 
  

   furrow; 
  there 
  is 
  a 
  narrow 
  one 
  between 
  the 
  hinder 
  pair, 
  

   and 
  an 
  oblique 
  one 
  at 
  the 
  side 
  of 
  the 
  front 
  pair 
  behind. 
  

   The 
  occiput 
  is 
  sharply 
  margined 
  above 
  ; 
  behind, 
  at 
  the 
  

   top, 
  is 
  a 
  narrow 
  furrow 
  on 
  the 
  inner 
  side 
  of 
  the 
  margin. 
  

  

  