﻿NO. 
  1966. 
  SYNOPSIS 
  OF 
  NEOTROPICAL 
  LIMNOBINJE— 
  ALEXANDER. 
  501 
  

  

  Habitat. 
  — 
  Holotype. 
  — 
  Female, 
  Esperito 
  Santo, 
  Brazil. 
  Received 
  

   from 
  Staudinger 
  and 
  Bang-Haas. 
  

   Type. 
  — 
  In 
  author's 
  collection. 
  

  

  MONGOMA 
  NIVEITARSIS, 
  new 
  species. 
  

  

  Dark 
  brown; 
  all 
  tarsi 
  white; 
  mngs 
  hyaline. 
  

  

  Female. 
  — 
  Length, 
  6.8-7 
  mm.; 
  wing, 
  6.1-6.3 
  mm.; 
  hind 
  leg, 
  femur 
  

   9 
  mm.; 
  tibia 
  and 
  tarsus 
  together, 
  15 
  mm. 
  

  

  Head: 
  rostrum 
  and 
  palpi 
  dark 
  brown; 
  antennse 
  moderately 
  elon- 
  

   gated, 
  dark 
  brown. 
  Front, 
  vertex, 
  and 
  occiput 
  dark 
  brown. 
  

  

  Thorax: 
  pronotum 
  largely 
  concealed 
  from 
  above 
  by 
  the 
  forward 
  

   projecting 
  mesonotum, 
  viewed 
  from 
  the 
  side, 
  the 
  prothoracic 
  scutel- 
  

   lum 
  is 
  high, 
  bearing 
  six 
  prominent 
  bristles 
  on 
  its 
  margin; 
  separated 
  

   from 
  the 
  scutum 
  by 
  a 
  deep 
  notch; 
  pronotum 
  dark 
  brown. 
  Meso- 
  

   notum 
  very 
  gibbous, 
  very 
  dark 
  bro\vn; 
  scutum, 
  scutellum, 
  and 
  post- 
  

   no 
  tum 
  dark 
  brown; 
  pleurae 
  yellomsh 
  brown. 
  Hal 
  teres 
  long, 
  slender, 
  

   brown, 
  the 
  stem 
  palest. 
  Legs: 
  coxae 
  and 
  trochanters 
  dull 
  yellowish- 
  

   brown; 
  femora 
  dark 
  olive-brown; 
  tibia 
  brown, 
  extreme 
  base 
  pale; 
  

   tarsus, 
  segments 
  one 
  and 
  two 
  bro 
  wnish- 
  white 
  ; 
  three 
  to 
  five 
  white, 
  

   except 
  the 
  claws, 
  which 
  are 
  brown. 
  

  

  Wings: 
  h3''aline, 
  slightly 
  darker 
  toward 
  the 
  tip; 
  stigma 
  brown; 
  

   veins 
  brown. 
  Venation, 
  (See 
  fig. 
  13.) 
  

  

  Abdomen: 
  tergum 
  dark 
  brov.Ti; 
  sternum 
  yellowish-brown; 
  ovi- 
  

   positor, 
  valves 
  veiy 
  long, 
  slender, 
  dark 
  -brown 
  basally, 
  remainder 
  

   lighter 
  brown. 
  

  

  The 
  paratype 
  has 
  the 
  tip 
  of 
  the 
  tibiae 
  and 
  all 
  of 
  the 
  tarsal 
  segments 
  

   white. 
  

  

  Hahitat. 
  — 
  Holotype. 
  — 
  Female, 
  El 
  Yunque, 
  Porto 
  Rico, 
  West 
  Indies; 
  

   2,850 
  feet; 
  Feb. 
  25, 
  1900 
  (Coll. 
  C. 
  W. 
  Richmond). 
  Paratype.— 
  

   Female, 
  with 
  the 
  type, 
  Feb. 
  27, 
  1900. 
  

  

  Type.— 
  In 
  U. 
  S. 
  National 
  Museum 
  collection 
  (No. 
  14920). 
  

  

  MONGOMA 
  EXTENSA, 
  new 
  species. 
  

  

  Brown; 
  small, 
  cross 
  vein 
  r 
  slightly 
  before 
  the 
  fork 
  of 
  R 
  2+3- 
  

  

  Female. 
  — 
  Length, 
  5.1 
  mm.; 
  wing, 
  4.9 
  mm. 
  Head: 
  rostrum 
  pale; 
  

   antennae 
  and 
  palpi 
  brown; 
  front 
  and 
  vertex 
  brown; 
  occiput 
  and 
  

   cervical 
  sclerites 
  rather 
  paler 
  brown. 
  

  

  Thorax: 
  dorsum 
  brownish-yellow, 
  the 
  mesothoracic 
  scutum 
  pale 
  

   yellow 
  in 
  the 
  middle 
  and 
  on 
  the 
  sides. 
  Halteres 
  pale, 
  whitish, 
  knob 
  

   rather 
  brown. 
  Legs 
  brown, 
  the 
  feet 
  rather 
  lighter-colored, 
  dull 
  yellow. 
  

  

  Wings 
  : 
  subhyaline, 
  a 
  triangular, 
  pale 
  brown, 
  stigmal 
  spot. 
  Vena- 
  

   tion: 
  R2+3 
  in 
  a 
  line 
  with 
  Rj, 
  which 
  is 
  shorter 
  than 
  it; 
  R4+5 
  leaving 
  

   Rj 
  at 
  an 
  angle 
  of 
  about 
  60°, 
  very 
  long. 
  Fork 
  of 
  R2+3 
  opposite 
  the 
  tip 
  

   of 
  Ri. 
  Cross 
  vein 
  r 
  very 
  indistinct, 
  slightly 
  before 
  the 
  fork 
  of 
  R2+3. 
  

   Cug 
  rather 
  close 
  to 
  first 
  anal 
  at 
  its 
  tip, 
  the 
  distance 
  separating 
  them 
  

   at 
  the 
  wing 
  margin 
  only 
  as 
  long 
  as 
  Scj. 
  (See 
  fig. 
  11.) 
  

  

  Abdomen 
  brown. 
  

  

  