﻿>o. 
  1066. 
  SYNOPSIS 
  OF 
  NEOTROPICAL 
  LIMNOBIN^— 
  ALEXANDER. 
  495 
  

  

  LECTERIA 
  CONSPERSA 
  Enderlein. 
  

   Dactylolabis 
  conspersa 
  Enderlein, 
  Zool. 
  Jahrb., 
  pt. 
  1, 
  1912, 
  pp. 
  49, 
  50. 
  

  

  I 
  have 
  seen 
  a 
  single 
  specimen, 
  taken 
  at 
  Rio 
  de 
  Janeiro 
  in 
  Novem- 
  

   ber. 
  (Probably 
  by 
  H. 
  11. 
  Smith.) 
  It 
  forms 
  part 
  of 
  the 
  Wilhston 
  

   collection 
  in 
  the 
  American 
  Museum 
  of 
  Natural 
  History 
  in 
  New 
  York. 
  

  

  The 
  wing 
  seems 
  to 
  be 
  of 
  a 
  different 
  shape 
  from 
  that 
  shown 
  in 
  

   Enderlein's 
  figure, 
  almost 
  Drepanopteryx 
  or 
  Osmylus-Wka 
  (Hemero- 
  

   biidae, 
  Neuroptera). 
  

  

  LECTERIA 
  OBSCURA 
  Fabricius. 
  

  

  Tipula 
  obscura 
  Fabricius, 
  Syst. 
  Anil., 
  1805, 
  p. 
  27. 
  

  

  Limnobia 
  obscura 
  Wiedemann, 
  Dipt. 
  Exot., 
  vol. 
  1, 
  1821, 
  p. 
  12; 
  Auss. 
  Zweifl. 
  Ins., 
  

  

  vol. 
  1, 
  1828, 
  p. 
  24.— 
  Hunter, 
  Trans. 
  Amer. 
  Ent. 
  Soc, 
  vol. 
  28, 
  1900, 
  p. 
  289.— 
  

  

  Kertesz, 
  Cat. 
  Dipt., 
  vol. 
  2, 
  1902, 
  p. 
  175. 
  

   Psaronius 
  lituratus 
  Enderlein, 
  Zool. 
  Jahrb., 
  1912, 
  pp. 
  50, 
  51, 
  fig. 
  Ej. 
  

  

  Female. 
  — 
  Length, 
  23.4 
  mm.; 
  wdng, 
  15.8 
  mm.; 
  abdomen, 
  18.6 
  mm.; 
  

   legs, 
  fore, 
  femora 
  8.8 
  mm.; 
  tibia 
  10 
  mm.; 
  tarsus 
  1, 
  5.5 
  mm.; 
  tarsus 
  

   2-5, 
  3.6 
  mm.; 
  middle, 
  femora 
  10.1 
  mm.; 
  tibia 
  10.1 
  mm.; 
  tarsus 
  1, 
  4.8 
  

   mm.; 
  tarsus 
  2-5, 
  3.2 
  mm.; 
  hind, 
  femora 
  11.2 
  mm.; 
  tibia 
  11.4 
  mm.; 
  

   tarsus 
  1, 
  3.6 
  mm.; 
  tarsus 
  2-5, 
  3.2 
  mm. 
  

  

  Head: 
  rostrum 
  and 
  palpi 
  dark 
  brown; 
  palpal 
  segments 
  short; 
  

   clypeus 
  yellowish-brown, 
  with 
  two 
  long 
  hau's 
  on 
  either 
  side. 
  Anten- 
  

   nae: 
  first 
  segment 
  much 
  elongated, 
  cylindrical, 
  longer 
  than 
  the 
  fol- 
  

   lowing 
  three 
  combined; 
  second 
  segment 
  short, 
  rounded-oval, 
  trun- 
  

   cated 
  at 
  its 
  apical 
  end; 
  segments 
  of 
  the 
  flagellum 
  gradually 
  more 
  

   slender 
  and 
  more 
  elongated, 
  clothed 
  with 
  dense, 
  appressed 
  downy 
  

   hairs 
  and 
  with 
  long 
  hairs 
  which 
  are 
  shortest 
  on 
  the 
  proximal 
  seg- 
  

   ments; 
  antennae 
  yellowish-brown; 
  flagellum 
  darker, 
  brown. 
  Front 
  

   brown; 
  vertex 
  yellowish-brown, 
  rather 
  darker 
  in 
  places; 
  a 
  patch 
  of 
  

   long 
  hairs 
  on 
  either 
  side 
  of 
  the 
  eye. 
  

  

  Thorax: 
  pronotum 
  brown; 
  mesonotum: 
  praescutum, 
  wdth 
  a 
  broad 
  

   deep 
  pseudosutural 
  fovea 
  on 
  its 
  antero-lateral 
  margm; 
  the 
  caudal 
  

   margin 
  of 
  the 
  fovea 
  gentle, 
  cephalic 
  margui 
  precipitous, 
  dark 
  bro-svn, 
  

   conspicuous; 
  praescutum 
  light 
  brownish-yellow 
  with 
  indistinct 
  brown 
  

   stripes; 
  two 
  parallel 
  ones 
  on 
  either 
  side 
  of 
  the 
  pale 
  naiTov/ 
  median 
  

   stripe, 
  becoming 
  indistinct 
  near 
  the 
  transverse 
  suture; 
  the 
  shorter, 
  

   but 
  broader, 
  lateral 
  stripes 
  begin 
  just 
  behind 
  the 
  fovea 
  and 
  run 
  

   backward 
  across 
  the 
  suture; 
  scutum, 
  scutellum, 
  and 
  postnotum 
  dull 
  

   yellowish-brown, 
  the 
  color 
  of 
  the 
  scutum 
  near 
  the 
  center 
  brought 
  

   about 
  by 
  the 
  spreading 
  out 
  of 
  the 
  lateral 
  praescutal 
  stripes. 
  Pleurae 
  

   dull 
  yellow, 
  a 
  darker 
  spot 
  on 
  the 
  mesothoracic 
  epipleura. 
  Halteres, 
  

   stem 
  yellow, 
  gradually 
  darkening 
  to 
  the 
  brown 
  knob. 
  Legs: 
  light 
  

   yellow; 
  femora 
  dark 
  brown 
  at 
  the 
  tip; 
  tibia 
  brown 
  at 
  the 
  extreme 
  

   base 
  and 
  tip; 
  tarsal 
  segments 
  dull 
  yellow, 
  darker 
  at 
  the 
  tip 
  of 
  each 
  

   segment; 
  segments 
  four 
  and 
  five 
  browna. 
  

  

  