﻿Heterocera 
  from 
  Costa 
  Ih'ca. 
  357 
  

  

  the 
  costal 
  margin 
  of 
  hind 
  wings 
  is 
  coarsely 
  irrorated 
  with 
  

   fuscous 
  grey. 
  

  

  Expanse 
  11 
  mm. 
  

  

  Hub. 
  Guapiles. 
  

  

  Subfamily 
  Litrosianxi. 
  

   Macroptila 
  monstralis, 
  sp. 
  n. 
  

  

  S 
  ■ 
  Frons 
  brown. 
  Vertex, 
  collar, 
  and 
  thorax 
  grey. 
  Ab- 
  

   domen 
  whitish. 
  Legs 
  whitish, 
  the 
  fore 
  tibia 
  above 
  with 
  

   ridge 
  of 
  long 
  ochreous 
  hairs. 
  Fore 
  wings 
  light 
  grey, 
  be- 
  

   coming 
  dark 
  grey 
  on 
  inner 
  margin, 
  costal 
  margin 
  and 
  veins 
  

   above 
  3 
  white 
  ; 
  the 
  extreme 
  costa 
  finely 
  ochreous. 
  Hind 
  

   wings: 
  the 
  inner 
  area 
  broadly 
  white; 
  the 
  costal 
  portion 
  

   above 
  median 
  light 
  brown 
  ; 
  the 
  outer 
  margin 
  from 
  vein 
  2 
  to 
  

   apex 
  shaded 
  with 
  dark 
  grey 
  ; 
  a 
  small 
  spot 
  of 
  androconia 
  in 
  

   cell 
  at 
  base. 
  

  

  Expanse 
  30 
  mm. 
  

  

  IJab. 
  Sixola. 
  

  

  Fore 
  wings 
  with 
  veins 
  3 
  and 
  4 
  on 
  rather 
  long 
  stalk 
  ; 
  6 
  

   from 
  near 
  upper 
  angle 
  of 
  cell 
  ; 
  7-9 
  stalked; 
  10 
  free. 
  Hind 
  

   wings 
  with 
  3 
  and 
  4 
  from 
  lower 
  angle; 
  5 
  absent 
  or 
  on 
  long 
  

   stalk 
  with 
  4 
  ; 
  6 
  and 
  7 
  from 
  upper 
  angle 
  apart 
  ; 
  costal 
  margin 
  

   straight 
  and 
  with 
  a 
  projecting 
  lobe 
  before 
  apex. 
  

  

  Macroptila 
  ?iubecuht, 
  sp. 
  n. 
  

  

  $ 
  . 
  Head, 
  collar, 
  and 
  thorax 
  lilacine 
  grey, 
  the 
  frons 
  paler. 
  

   Abdomen 
  buff-white. 
  Fore 
  wings 
  : 
  costal 
  margin, 
  cell, 
  and 
  

   from 
  vein 
  3 
  to 
  apex 
  silvery 
  white, 
  faintly 
  tinged 
  with 
  buff 
  ; 
  

   below 
  cell 
  lilacine 
  buff, 
  shading 
  to 
  lilacine 
  grey 
  above 
  and 
  

   below 
  submedian. 
  Hind 
  wings 
  faintly 
  tinged 
  with 
  buff 
  and 
  

   shaded 
  with 
  grey 
  at 
  apex 
  ; 
  the 
  cell 
  filled 
  with 
  a 
  large 
  patch 
  

   of 
  dark 
  brown 
  androconia, 
  partly 
  covered 
  by 
  an 
  upturned 
  

   ridge 
  of 
  long 
  hairs 
  on 
  median 
  vein. 
  Underneath 
  whitish, 
  

   the 
  costal 
  margins 
  yellowish 
  buff. 
  

  

  Expanse 
  32 
  mm. 
  

  

  Hab. 
  Sixola, 
  Tuis, 
  Esperanza. 
  

  

  This 
  species 
  will 
  fall 
  into 
  a 
  new 
  section. 
  Fore 
  wing 
  with 
  

   cell 
  narrow, 
  the 
  median 
  arched 
  ; 
  vein 
  6 
  from 
  well 
  below 
  

   angle 
  of 
  cell; 
  7-9 
  stalked 
  ; 
  10 
  free. 
  Hind 
  wing 
  with 
  a 
  large 
  

   patch 
  of 
  androconia 
  in 
  cell 
  ; 
  veins 
  3-5 
  stalked 
  ; 
  veins 
  6 
  and 
  7 
  

   stalked, 
  downturned; 
  the 
  costal 
  margin 
  concave 
  before 
  apex. 
  

  

  Aptilosia, 
  gen. 
  no 
  v. 
  

   Proboscis 
  fully 
  developed. 
  Antennre 
  of 
  male 
  with 
  short 
  

  

  