﻿522 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.44. 
  

  

  brown 
  on 
  the 
  costa 
  and 
  along 
  the 
  vems, 
  and 
  at 
  the 
  same 
  time 
  is 
  

   large 
  enough 
  (12 
  mm) 
  to 
  answer 
  this 
  description. 
  It 
  agrees 
  very- 
  

   well 
  with 
  the 
  Mexican 
  Trimicrae. 
  

  

  GNOPHOMYIA 
  LUCTUOSA 
  Osten 
  Sacken. 
  

  

  Gnophomyia 
  luduosa 
  Osten 
  Sacken, 
  Proc. 
  Acad. 
  Nat. 
  Sci. 
  Phila., 
  1859, 
  p. 
  224, 
  

  

  male; 
  Monographs, 
  vol. 
  4, 
  1869, 
  p. 
  174; 
  Cat. 
  Dipt. 
  N. 
  Amer., 
  1878, 
  p. 
  30; 
  

  

  Berl. 
  Ent. 
  Zeit., 
  vol. 
  31, 
  1887, 
  p. 
  198.— 
  Johnson, 
  Proc. 
  Acad. 
  Nat. 
  Sci. 
  

  

  Phila., 
  1895, 
  p. 
  320.— 
  Kertesz, 
  Cat. 
  Dipt., 
  vol. 
  2, 
  1902, 
  p. 
  210.— 
  Aldrich, 
  

  

  Cat. 
  N. 
  Amer., 
  Dipt., 
  1905, 
  p. 
  87. 
  

   Limnobia 
  nigricola 
  Walker, 
  Trans. 
  Ent. 
  Soc. 
  Lond., 
  1860, 
  p. 
  333. 
  

  

  One 
  female 
  from 
  Guatemala, 
  Central 
  America 
  (Sept., 
  1902) 
  

   (Coll. 
  G. 
  Eisen.). 
  

   Length, 
  6 
  mm.; 
  wing, 
  6.3 
  mm. 
  

   Specimen 
  in 
  U. 
  S. 
  National 
  Museum 
  collection. 
  (See 
  fig. 
  29.) 
  

  

  GNOPHOMYIA 
  RUFITHORAX 
  Wiedemann. 
  

  

  Limnobia 
  rufUhorax 
  Wiedemann, 
  Auss. 
  Zweifl. 
  Ins., 
  vol. 
  1, 
  1828, 
  p. 
  548, 
  male. 
  

   Furina 
  rufithorax 
  J^nnieke, 
  Abhandl. 
  Senckenber. 
  Ges., 
  vol. 
  6, 
  1867, 
  p. 
  318, 
  

  

  pi. 
  43, 
  fig. 
  1. 
  

   Gnophomyia 
  Tufithornx 
  Osten 
  Sacken, 
  Berl. 
  Ent. 
  Zeit., 
  vol. 
  31, 
  1887, 
  p. 
  198. 
  — 
  

  

  Hunter, 
  Trans. 
  Amer. 
  Ent. 
  Soc, 
  1900, 
  p. 
  291. 
  — 
  Kertesz, 
  Cat. 
  Dipt., 
  

  

  vol. 
  2, 
  1902, 
  p. 
  211. 
  

  

  Male. 
  — 
  Somewhat 
  injured, 
  head 
  missing. 
  

  

  Thorax: 
  pronotum 
  black, 
  reddish 
  along 
  the 
  caudal 
  margin. 
  

   Mesonotum: 
  yellowish-orange, 
  darker, 
  brownish, 
  behind. 
  Pleurae 
  

   orange, 
  the 
  meso- 
  and 
  meta-coxse 
  orange 
  at 
  the 
  bases. 
  Legs 
  black. 
  

  

  Wings 
  brown, 
  posterior 
  cells 
  paler. 
  (See 
  fig. 
  32.) 
  

  

  Abdomen 
  black. 
  

  

  Male, 
  wing 
  11.5 
  mm. 
  

  

  Chapada, 
  Matto 
  Grosso, 
  Brazil 
  (March) 
  (H. 
  H. 
  Smith, 
  coll.) 
  (speci- 
  

   men 
  in 
  American 
  Museum 
  of 
  Natural 
  History). 
  

  

  GNOPHOMYIA 
  MAGNIFICA, 
  new 
  species. 
  

  

  Head, 
  legs 
  and 
  wings 
  black; 
  thorax 
  and 
  abdomen 
  orange-yellow. 
  

  

  Female. 
  — 
  Length 
  14 
  mm.; 
  wing, 
  13 
  mm. 
  

  

  Head: 
  rostrum 
  and 
  palpi 
  dark 
  bro\vnish-black. 
  Eyes 
  rather 
  

   approximated; 
  antenna3 
  entirely 
  black. 
  Front, 
  vertex 
  and 
  gense 
  

   black, 
  occiput 
  dull 
  orange-yellow; 
  front 
  shiny. 
  

  

  Thorax: 
  pronotum, 
  scutum 
  bright 
  orange-yellow, 
  darker 
  in 
  front, 
  

   paler 
  behind; 
  scutellum 
  narrow, 
  transverse, 
  pale 
  yellow. 
  Meso- 
  

   notum: 
  prsescutum 
  deep 
  orange-yellow 
  without 
  stripes, 
  a 
  row 
  of 
  

   hairs 
  along 
  either 
  side 
  of 
  the 
  middle 
  prominence, 
  passing 
  mesad 
  of 
  

   the 
  pseudosutural 
  fovea, 
  a 
  rounded 
  whitish 
  spot 
  occupying 
  the 
  

   region 
  of 
  the 
  pseudo-suture, 
  lateral 
  margins 
  of 
  the 
  sclerite 
  paler, 
  

   light 
  yeUow; 
  scutum, 
  scutellum 
  and 
  post-notum 
  orange-yellow, 
  the 
  

   latter 
  slightly 
  suffused 
  with 
  brown, 
  especially 
  medially. 
  Pleurae 
  

  

  