﻿NO. 
  1966. 
  SYX0P8IS 
  OF 
  NEOTROPICAL 
  LIMNOBIN^— 
  ALEXANDER. 
  547 
  

  

  triangular 
  black 
  mark 
  between 
  the 
  eyes 
  and 
  a 
  brown 
  margin 
  on 
  the 
  

   inside 
  of 
  the 
  eye; 
  vertex 
  thickly 
  dotted 
  with 
  brown; 
  occiput 
  gray. 
  

  

  Thorax: 
  pronotumgra}^; 
  mesonotum: 
  praescutum, 
  pale 
  brown 
  with 
  

   a 
  grayish 
  bloom 
  in 
  front, 
  with 
  indistinct 
  darker 
  brown 
  spots 
  on 
  the 
  

   caudal 
  half 
  of 
  the 
  sclerite; 
  scutum, 
  light 
  brownish-yellow, 
  with 
  a 
  large 
  

   rounded 
  dark 
  brown 
  spot 
  on 
  either 
  side 
  of 
  the 
  median 
  line 
  and 
  a 
  

   smaller 
  lateral 
  spot 
  which 
  is 
  continued 
  cephalad 
  upon 
  the 
  caudal 
  

   portion 
  of 
  the 
  prsescutum; 
  scutellum 
  gray, 
  suffused 
  with 
  brown 
  

   anteriorly, 
  a 
  blackish 
  edging 
  along 
  the 
  caudal 
  margin; 
  post-no 
  tum 
  

   grey. 
  Pleurae 
  brown, 
  with 
  a 
  decided 
  gray 
  bloom. 
  Halteres 
  light 
  

   yellow. 
  Legs: 
  anterior: 
  coxae 
  and 
  trochanters 
  hght 
  yellow, 
  re- 
  

   mainder 
  broken; 
  middle 
  and 
  hind: 
  coxae 
  and 
  trochanters 
  brownish- 
  

   yellow; 
  femora 
  yellowish-brown; 
  tibiae 
  and 
  tarsi 
  similar, 
  the 
  three 
  

   apical 
  tarsal 
  segments 
  brown. 
  

  

  Wings 
  : 
  subhy 
  aline, 
  veins 
  yeUow, 
  especially 
  in 
  the 
  cephalic 
  portion 
  

   of 
  the 
  wing; 
  all 
  the 
  cells 
  with 
  numerous 
  fine 
  dots 
  of 
  light 
  brown, 
  these 
  

   dots 
  assuming 
  a 
  reticulated 
  appearance 
  in 
  the 
  caudal 
  cells, 
  con- 
  

   fluent, 
  forming 
  large 
  brown 
  blotches 
  about 
  the 
  base 
  of 
  Rs, 
  along 
  

   the 
  cord 
  and 
  running 
  cephalad 
  over 
  the 
  fork 
  of 
  'R^+s, 
  and 
  the 
  

   apical 
  portions 
  of 
  cells 
  second 
  Ri, 
  Rj, 
  and 
  Rg. 
  Venation 
  (see 
  fig. 
  38, 
  

   from 
  which 
  the 
  wing 
  pattern 
  has 
  been 
  omitted): 
  Sc 
  rather 
  short, 
  

   ending 
  just 
  beyond 
  the 
  fork 
  of 
  R2+3; 
  Scj 
  at 
  the 
  tip 
  of 
  Sci, 
  slightly 
  

   longer 
  than 
  Sc^; 
  Sc^ 
  remote 
  from 
  the 
  tip 
  of 
  R^. 
  Rs 
  long, 
  arcuated 
  

   at 
  its 
  origin; 
  R2+3 
  short; 
  Rj 
  strongly 
  arcuated 
  at 
  its 
  origui; 
  r 
  far 
  

   back 
  from 
  the 
  tip 
  of 
  R^; 
  Mj+j 
  beyond 
  m 
  longer 
  than 
  either 
  Mj 
  or 
  

   Mj, 
  which 
  are 
  subequal. 
  Basal 
  deflection 
  of 
  Cuj 
  in 
  under 
  the 
  middle 
  

   of 
  cell 
  first 
  Mj. 
  

  

  Abdomen: 
  tergum 
  brown, 
  the 
  lateral 
  margins 
  of 
  the 
  sclerites 
  

   yellow; 
  hypopygium 
  reddish-yellow; 
  sternum 
  yellow, 
  the 
  sixth 
  and 
  

   seventh 
  segments 
  more 
  brownish. 
  

  

  Habitat. 
  — 
  Holotype. 
  — 
  Male, 
  Totonicipan, 
  Guatemala, 
  Central 
  Amer- 
  

   ica 
  (Eisen, 
  coll.). 
  

  

  Type. 
  — 
  In 
  U. 
  S. 
  National 
  Museum 
  collection 
  (No. 
  14940). 
  

  

  ? 
  LIMNOPHILA 
  LUTEA 
  Philippi. 
  

  

  Polymoria 
  lutea 
  Philippi, 
  Verh. 
  Zool-bot. 
  Ges. 
  Wien, 
  vol. 
  15, 
  1865, 
  p. 
  609. 
  — 
  

   HuKTER, 
  Trans. 
  Amer. 
  Ent. 
  Soc, 
  vol. 
  26, 
  1900, 
  p. 
  290.— 
  Kertesz, 
  Cat. 
  

   Dipt., 
  vol. 
  2, 
  1902, 
  p. 
  198. 
  

  

  Male. 
  — 
  Length, 
  10.7 
  mm; 
  wing, 
  12-12.2 
  mm. 
  

  

  Head: 
  rostrum 
  and 
  palpi 
  dark 
  brown; 
  antennae 
  brown, 
  the 
  flagel- 
  

   lar 
  segments 
  rather 
  brighter; 
  front, 
  vertex 
  and 
  occiput 
  dark 
  brown. 
  

  

  Thorax: 
  praescutum 
  reddish-yellow 
  \vith 
  indistinct 
  reddish 
  stripes 
  

   on 
  either 
  side 
  of 
  the 
  middle 
  line; 
  scutum 
  deep 
  brownish-red; 
  scu- 
  

   tellum 
  reddish-yellow; 
  postnotum 
  brown; 
  pleurae 
  brown, 
  the 
  pro- 
  

   pleurae 
  lighter, 
  yellowish. 
  Halteres, 
  stem 
  and 
  knob 
  light 
  yellow. 
  

  

  