﻿NO. 
  1966. 
  SYNOPSIS 
  OF 
  NEOTROPICAL 
  LIMNOBINM— 
  ALEXANDER. 
  507 
  

  

  light 
  yellow, 
  browner 
  in 
  front. 
  Pleurae 
  light 
  yellow 
  with 
  two 
  narrow 
  

   dark 
  brown 
  stripes, 
  the 
  upper 
  continuing 
  from 
  the 
  side 
  of 
  the 
  pro- 
  

   no 
  turn, 
  obliquely 
  caudad 
  to 
  the 
  base 
  of 
  the 
  halteres; 
  the 
  lower 
  short, 
  

   beginning 
  under 
  the 
  precoxa, 
  running 
  backward 
  to 
  the 
  mesocoxa. 
  

   Halteres, 
  bro\\T]ish- 
  white. 
  Legs: 
  coxse 
  and 
  trochanters 
  light 
  yellow; 
  

   femora, 
  tibse 
  and 
  tarsi 
  j^ellowish-brown, 
  uniform. 
  

  

  Wings: 
  hyaline, 
  stigma 
  pale 
  browTi. 
  

  

  Abdomen: 
  tergum 
  dark 
  brown, 
  uniform; 
  sternum 
  uniform 
  light 
  

   yellow. 
  

  

  Habitat. 
  — 
  Holotype. 
  — 
  Female 
  — 
  Totonicipan, 
  Guatemala, 
  Central 
  

   America 
  (1902), 
  (G. 
  Eisen). 
  

  

  Type.— 
  In 
  U. 
  S. 
  National 
  Museum 
  collection 
  (No. 
  14933). 
  

  

  Near 
  G. 
  cognatella 
  Osten 
  Sacken; 
  differing 
  in 
  coloration, 
  pleural 
  

   stripes 
  more 
  distinct, 
  etc.; 
  venation 
  (Sc 
  very 
  short, 
  etc.). 
  Delicata 
  

   has 
  Ks 
  rather 
  long, 
  arcuated 
  at 
  its 
  origin 
  with 
  a 
  slight 
  spur; 
  the 
  

   distance 
  on 
  R 
  from 
  tip 
  of 
  Sc 
  to 
  origin 
  of 
  Rs 
  almost 
  as 
  long 
  as 
  Rs 
  

   itself. 
  

  

  GONOMYIA 
  (GONOMYIA) 
  UNICOLGR, 
  new 
  species. 
  

  

  Head 
  dark 
  gray; 
  antennae 
  blackish-bro^^^l; 
  mesonotum 
  brown; 
  

   pleurae 
  light 
  bro\^^l, 
  not 
  striped; 
  legs 
  uniform 
  yellowish-brown; 
  

   wings 
  hyaline. 
  

  

  Male. 
  — 
  Length, 
  3.9 
  mm,; 
  wing, 
  4.6 
  mm. 
  

  

  Female. 
  — 
  Length, 
  4.8 
  mm.; 
  wing, 
  5 
  mm. 
  

  

  Head: 
  rostrum 
  and 
  palpi 
  brown; 
  antennae 
  uniformly 
  dai^k 
  blackish- 
  

   brown 
  throughout; 
  front, 
  vertex 
  and 
  occiput 
  uniform 
  blackish-gray. 
  

  

  Thorax: 
  mesonotum, 
  praescutum 
  medium 
  bro's\Ti; 
  pseudosuture 
  

   prominent, 
  dark 
  brown; 
  scutum 
  similar 
  to 
  the 
  praescutum; 
  scutellum 
  

   pale, 
  yellowish 
  ; 
  post-notum 
  medium 
  bro^vn. 
  Pleurae 
  rich 
  light 
  brown, 
  

   the 
  sternum 
  rather 
  darker. 
  Halteres 
  brown, 
  paler 
  at 
  the 
  extreme 
  

   base. 
  Legs: 
  coxae, 
  trochanters, 
  femora, 
  tibiae 
  and 
  tarsi, 
  yellowish- 
  

   brown, 
  unicolorous. 
  

  

  Wings: 
  hyaline. 
  (See 
  fig. 
  15.) 
  

  

  Abdomen: 
  tergum 
  medium 
  brown 
  throughout; 
  hypopygium 
  

   slightly 
  paler; 
  sternum 
  paler, 
  yellowish. 
  

  

  Hahitat. 
  — 
  Holotype. 
  — 
  Female, 
  Aguna, 
  Guatemala, 
  Central 
  America 
  

   (2,000 
  feet), 
  (G. 
  Eisen). 
  Allotype. 
  — 
  Male, 
  with 
  the 
  type. 
  Para- 
  

   type. 
  — 
  Male 
  and 
  female, 
  with 
  the 
  type. 
  

  

  Type. 
  — 
  In 
  U. 
  S. 
  National 
  Museum 
  collection 
  (No. 
  14934). 
  

  

  Three 
  specimens, 
  two 
  from 
  Totonicopan, 
  Guatemala, 
  Jul_y, 
  1902, 
  

   female 
  and 
  male 
  (G. 
  Eisen), 
  and 
  one 
  from 
  Cordoba, 
  Mexico 
  

   (May 
  8, 
  1908) 
  (F. 
  Knab), 
  are 
  larger, 
  mesonotum 
  more 
  greyish, 
  

   pseudosuture 
  and 
  tuberculate 
  pits 
  black, 
  conspicuous 
  and 
  venation 
  

   slightly 
  different. 
  I 
  believe 
  them 
  to 
  be 
  variations 
  of 
  the 
  species. 
  

   Length, 
  male 
  6.1 
  mm.; 
  female, 
  7 
  mm. 
  I 
  have 
  labeled 
  them 
  

   unicolor, 
  var. 
  

  

  