﻿NO. 
  1960. 
  SYNOPSIS 
  OF 
  NEOTROPICAL 
  LIMXOBIX.J^— 
  ALEXANDER. 
  491 
  

   CHARACTERIZATIONS 
  OF 
  NEW 
  SPECIES 
  AND 
  KEYS 
  TO 
  THE 
  FORMS. 
  

  

  KEY 
  TO 
  THE 
  SUBFAMILIES 
  OF 
  TEPULID^. 
  

  

  1. 
  Terminal 
  segment 
  of 
  the 
  maxillary 
  palpi 
  very 
  long, 
  whip-lash 
  shaped, 
  much 
  

   longer 
  than 
  all 
  of 
  the 
  preceding 
  segments 
  combined; 
  Sc 
  ends 
  in 
  R, 
  Sc, 
  being 
  

   obliterated; 
  fusion 
  of 
  Cuj 
  on 
  M 
  usually 
  slight, 
  often 
  punctiform; 
  cell 
  Cujof 
  

   the 
  wings 
  usually 
  broader 
  at 
  the 
  base 
  than 
  at 
  the 
  middle. 
  Antennse 
  13-seg- 
  

  

  mented 
  Tipulin^. 
  

  

  Terminal 
  segment 
  of 
  the 
  maxillary 
  palpi 
  short, 
  scarcely 
  longer 
  than 
  the 
  two 
  pre- 
  

   ceding 
  combined; 
  Sc 
  ends 
  in 
  C, 
  Scj 
  being 
  present; 
  fusion 
  of 
  Cuj 
  on 
  M 
  usual 
  

   long; 
  cell 
  Cui 
  of 
  the 
  wings 
  usually 
  only 
  as 
  broad 
  at 
  the 
  base 
  as 
  at 
  the 
  middle. 
  

   Antennas 
  14 
  or 
  16 
  segmented 
  Limnobin^. 
  

  

  The 
  exceptions 
  to 
  the 
  above 
  characterizations 
  are 
  numerous, 
  but 
  

   the 
  majority 
  should 
  hold. 
  Pedicia, 
  a 
  Limnobine, 
  has 
  long 
  maxillary 
  

   palpi 
  Hke 
  the 
  longipalpous 
  Tipulinae; 
  the 
  Dicranotag 
  (Pedicini) 
  have 
  

   13-segmented 
  antennae, 
  etc. 
  

  

  KEY 
  TO 
  THE 
  TRIBES 
  OP 
  LIMNOBIN.E. 
  

  

  1. 
  Rg 
  with 
  two 
  branches 
  reaching 
  the 
  margin 
  2. 
  

  

  Rg 
  with 
  three 
  branches 
  reaching 
  the 
  margin 
  4. 
  

  

  2. 
  Antennte 
  14-segmented 
  Limnobini. 
  

  

  Antennai 
  16-segmented 
  3. 
  

  

  3. 
  Ri 
  usually 
  incurved 
  toward 
  Ro+g 
  at 
  the 
  wing 
  margin 
  and 
  fused 
  backward 
  with 
  it; 
  

  

  tibial 
  with 
  spurs 
  at 
  the 
  tip 
  Cylindrotomini. 
  

  

  Ri 
  runs 
  straight 
  to 
  the 
  wing 
  margin, 
  not 
  fusing 
  with 
  R2+3; 
  tibiae 
  spurless. 
  

  

  Antochini. 
  

  

  4. 
  Tibiae 
  spurred 
  at 
  the 
  tip 
  5. 
  

  

  Tibiae 
  wdthout 
  spurs 
  at 
  the 
  tip 
  Eriopterini. 
  

  

  5. 
  Antennse 
  with 
  from 
  6 
  to 
  10 
  segments 
  Hexatomini. 
  

  

  Antennae 
  with 
  from 
  13 
  to 
  39 
  segments 
  6. 
  

  

  6. 
  Sc.> 
  retracted 
  far 
  toward 
  the 
  base 
  of 
  the 
  wing 
  so 
  that 
  it 
  is 
  inoximad 
  of 
  the 
  origin 
  

  

  of 
  Rg 
  Pedicini. 
  

  

  Sco 
  at 
  the 
  tip 
  of 
  Sc, 
  or 
  retracted 
  backward 
  ( 
  Trichocera), 
  not 
  proximad 
  of 
  the 
  origin 
  

  

  of 
  R, 
  LiMNOPHILINI. 
  

  

  The 
  tribes 
  herein 
  considered, 
  Eriopterini 
  and 
  Limnophilini, 
  are 
  

   exceedingly 
  closely 
  allied 
  to 
  one 
  another, 
  and 
  the 
  character 
  of 
  the 
  

   tibial 
  spurs 
  can 
  not, 
  apparently, 
  be 
  depended 
  upon 
  in 
  critical 
  cases. 
  

   The 
  members 
  of 
  these 
  tribes 
  require 
  further 
  study 
  at 
  the 
  hands 
  of 
  

   some 
  student 
  who 
  has 
  access 
  to 
  collections 
  where 
  a 
  majority 
  of 
  the 
  

   forms 
  are 
  contained. 
  If 
  these 
  tribes 
  are 
  vaHd 
  (and 
  no 
  one 
  disputes 
  

   the 
  point 
  as 
  to 
  whether 
  they 
  are 
  convenient 
  to 
  use 
  or 
  not), 
  then 
  

   other 
  characters 
  will 
  be 
  found 
  to 
  separate 
  them. 
  I 
  have 
  included 
  

   the 
  genus 
  Lecteria 
  in 
  both 
  tribes, 
  as 
  L. 
  obscura 
  has 
  spurred 
  tibiae 
  

   whereas 
  L. 
  armillaris 
  has 
  naked, 
  spurless 
  tibise. 
  

  

  