﻿Manchester 
  Memoirs, 
  Vol. 
  xlii. 
  (1898), 
  No. 
  11. 
  35 
  

  

  longer 
  than 
  the 
  fourth. 
  Head 
  black 
  ; 
  alutaceous, 
  the 
  vertex 
  

   covered 
  with 
  a 
  dark, 
  microscopic 
  down 
  ; 
  the 
  front 
  deeply 
  

   excavated; 
  thickly 
  covered 
  with 
  depressed, 
  silvery 
  pubes- 
  

   cence, 
  as 
  is 
  also 
  the 
  clypeus 
  ; 
  the 
  frontal 
  depression 
  at 
  the 
  

   top 
  with 
  a 
  distinctly-defined 
  margin, 
  the 
  centre 
  of 
  which, 
  

   looked 
  at 
  from 
  beneath, 
  is 
  slightly 
  curved 
  ; 
  the 
  eyes 
  on 
  

   the 
  upper 
  part 
  on 
  the 
  inner 
  side 
  are 
  slightly 
  margined 
  ; 
  

   below 
  the 
  middle 
  is 
  a 
  small, 
  human-ear-shaped 
  fovea; 
  the 
  

   ocelli 
  are 
  in 
  a 
  curve. 
  Mandibles 
  lemon-yellow; 
  the 
  apex 
  

   piceous-black 
  ; 
  the 
  basal 
  part 
  sparsely 
  covered 
  with 
  long, 
  

   white 
  hairs. 
  Mesonotum 
  alutaceous, 
  thickly 
  covered 
  

   with 
  a 
  microscopic, 
  fuscous 
  down 
  ; 
  the 
  pronotum 
  with 
  

   longer, 
  fuscous 
  hair; 
  the 
  scutellum 
  like 
  the 
  mesonotum, 
  

   its 
  apex 
  with 
  some 
  longitudinal 
  striae, 
  and 
  a 
  thin 
  keel 
  runs 
  

   down 
  its 
  middle; 
  on 
  its 
  base 
  at 
  the 
  side 
  is 
  a 
  small, 
  and, 
  

   behind 
  this, 
  a 
  larger, 
  transverse 
  yellow 
  mark 
  ; 
  the 
  post- 
  

   scutellum 
  finely 
  rugose; 
  coarsely 
  longitudinally 
  striolate. 
  

   Median 
  segment 
  with 
  a 
  rounded 
  slope; 
  the 
  basal 
  area 
  

   clearly 
  defined; 
  bearing 
  a 
  few 
  oblique, 
  widely 
  separated 
  

   keels 
  ; 
  those 
  at 
  the 
  sides 
  being 
  more 
  distinct 
  than 
  those 
  in 
  

   the 
  middle 
  and 
  extend 
  beyond 
  the 
  area, 
  outside 
  of 
  which 
  

   the 
  segment 
  is 
  closely, 
  but 
  not 
  very 
  distinctly, 
  punctured 
  ; 
  

   the 
  middle 
  of 
  the 
  apical 
  part 
  has 
  a 
  wide, 
  deep 
  furrow. 
  

   The 
  propleurae 
  at 
  the 
  top 
  have 
  a 
  few 
  fine, 
  indistinct 
  striae, 
  

   the 
  lower 
  part 
  in 
  the 
  centre 
  has 
  a 
  few 
  stout, 
  longitudinal 
  

   striae. 
  The 
  tubercles 
  are 
  yellow; 
  the 
  oblique 
  furrow 
  

   behind 
  them 
  straight, 
  narrow; 
  the 
  longitudinal 
  furrow 
  

   narrow, 
  shining 
  ; 
  the 
  oblique 
  furrow 
  on 
  the 
  mesopleurae 
  

   wide, 
  deep, 
  indistinctly 
  crenulated 
  ; 
  the 
  apical 
  semi-vertical 
  

   furrow 
  wider, 
  deeper, 
  and 
  distinctly 
  crenulated; 
  the 
  meta- 
  

   pleurae 
  at 
  the 
  base 
  shining, 
  strongly 
  closely 
  obliquely 
  

   striated, 
  the 
  rest 
  of 
  it 
  finely 
  and 
  closely 
  longitudinally 
  

   striated, 
  the 
  strise 
  stronger 
  on 
  the 
  lower 
  side. 
  Legs 
  : 
  the 
  

   apices 
  of 
  the 
  coxae, 
  of 
  the 
  femora, 
  and 
  the 
  tibiae 
  lemon- 
  

   yellow; 
  the 
  tibiae 
  for 
  the 
  greater 
  part 
  black 
  beneath 
  ; 
  the 
  

  

  