﻿African 
  Micro-Lepidojjtera. 
  127 
  

  

  wing 
  ; 
  all 
  the 
  white 
  markings 
  are 
  delicately 
  margined 
  before 
  and 
  

   behind 
  with 
  lines 
  of 
  brownish 
  fuscous 
  scales 
  ; 
  cilia 
  at 
  the 
  anal 
  

   angle 
  pale 
  greyish 
  fuscous. 
  Hind 
  ivmgs 
  pale 
  greyish 
  fuscous 
  ; 
  

   cilia 
  the 
  same. 
  Abdomen 
  greyish 
  brown. 
  Legs 
  white, 
  banded 
  

   and 
  spotted 
  with 
  brownish 
  fuscous; 
  tarsal 
  spurs 
  white, 
  with 
  a 
  

   brownish 
  fuscous 
  spot 
  on 
  each. 
  Exp. 
  al, 
  7 
  mm. 
  

  

  Hah. 
  Bathurst 
  (Gambia) 
  ; 
  one 
  specimen 
  bred 
  from 
  

   mines 
  in 
  a 
  species 
  of 
  mallow, 
  November 
  {Carter). 
  

  

  Type, 
  (?, 
  Mus. 
  Wlsm. 
  

  

  This 
  species 
  belongs 
  to 
  the 
  scalariella 
  group. 
  

  

  LYONETIAN^. 
  

  

  MicROTHAUMA, 
  gen. 
  n. 
  

  

  {f/.inp65= 
  little, 
  9aiS/xx 
  = 
  marvel.) 
  

  

  Type. 
  Microthaumamctallifera, 
  Wlsm. 
  

  

  [PI. 
  vii., 
  fig. 
  87.] 
  

  

  AntenncB 
  with 
  basal 
  joint 
  enlarged 
  and 
  clothed 
  with 
  a 
  conspicuous 
  

  

  eye-cap. 
  Labial 
  paljn 
  drooping. 
  Maxillary 
  loalfi 
  obsolete. 
  

  

  Haustellum 
  present. 
  Head 
  tufted 
  ; 
  face 
  smooth. 
  Fore 
  wings 
  

  

  moderately 
  broad, 
  acuminate. 
  Neuration 
  8 
  veins 
  ; 
  1 
  forked 
  at 
  

  

  base 
  ; 
  2 
  from 
  near 
  angle 
  of 
  cell 
  ; 
  4 
  from 
  the 
  cross-vein 
  closing 
  cell 
  ; 
  

  

  5 
  and 
  6 
  from 
  a 
  common 
  stem 
  ; 
  7 
  from 
  beyond 
  middle 
  of 
  cell 
  to 
  

  

  costa 
  ; 
  8 
  to 
  costa 
  before 
  middle. 
  Hind 
  ivings 
  narrow, 
  elongate, 
  

  

  acuxninate, 
  tapering 
  from 
  base 
  outwards. 
  Neuration 
  4 
  veins 
  ; 
  

  

  3 
  and 
  4 
  from 
  subcostal 
  vein, 
  4 
  to 
  apex 
  ; 
  cell 
  open. 
  

  

  This 
  genus 
  differs 
  from 
  Opostega 
  in 
  neuration, 
  as 
  well 
  

   as 
  in 
  the 
  more 
  developed 
  drooping 
  labial 
  palpi. 
  

  

  [PI. 
  vi., 
  fig. 
  69.] 
  

   Microthauma 
  metallifera, 
  sp. 
  n. 
  

   AntenncB 
  and 
  eye-caps 
  white. 
  Palpi 
  short, 
  depressed 
  ; 
  whitish. 
  

   Head 
  white, 
  tufted 
  above 
  ; 
  face 
  smooth. 
  Thorax 
  white. 
  Fore 
  

   wings 
  shining 
  white 
  ; 
  a 
  small 
  indistinct 
  spot 
  of 
  bronzy 
  scales, 
  

   mixed 
  with 
  golden 
  yellow, 
  on 
  the 
  costa 
  before 
  the 
  middle, 
  has 
  an 
  

   outwardly 
  oblique 
  inner 
  margin 
  pointing 
  towards 
  the 
  apex 
  of 
  an 
  

   also 
  outwardly 
  oblique 
  bronzy 
  metallic 
  dorsal 
  streak 
  slightly 
  

   beyond 
  it, 
  which 
  is 
  connected 
  with 
  a 
  bright 
  patch 
  of 
  golden 
  yellow 
  

   metallic 
  scales, 
  blending 
  into 
  bronzy 
  brown 
  at 
  their 
  outer 
  and 
  

   lower 
  extremity 
  ; 
  this 
  patch 
  occupies 
  about 
  the 
  middle 
  of 
  the 
  

   dorsal 
  margin 
  ; 
  before 
  it, 
  much 
  nearer 
  to 
  the 
  base, 
  is 
  a 
  smaller 
  

   spot 
  of 
  dark 
  bronzy 
  brown 
  raetallic 
  scales 
  ; 
  on 
  the 
  costa 
  beyond 
  

  

  