﻿HELEID 
  MIDGES, 
  GENUS 
  STILOBEZZIA 
  — 
  ^WIRTH 
  63 
  

  

  Male: 
  Ninth 
  sternite 
  nearly 
  four 
  times 
  as 
  broad 
  as 
  long, 
  with 
  deep 
  

   quadrate 
  emargination 
  three-fourths 
  way 
  to 
  base 
  on 
  mesal 
  third, 
  with 
  

   spiculate 
  margms, 
  the 
  posterior 
  membrane 
  bare; 
  ninth 
  tergite 
  rounded, 
  

   with 
  a 
  pair 
  of 
  very 
  small 
  iingerlike 
  setigerous 
  apicolateral 
  lobes. 
  

   Basistyles 
  simple, 
  about 
  twice 
  as 
  long 
  as 
  broad; 
  dististyles 
  about 
  two- 
  

   thirds 
  as 
  long 
  as 
  basistyles, 
  very 
  broad 
  with 
  truncate 
  tips. 
  Aedeagus 
  

   with 
  an 
  oblique 
  pair 
  of 
  rather 
  stout, 
  slightly 
  sinuate, 
  sclerotized 
  bars 
  

   with 
  pointed 
  apices; 
  an 
  irregular 
  hyalme 
  membranous 
  lobe 
  from 
  pos- 
  

   terior 
  margins. 
  Parameres 
  very 
  long, 
  slender 
  and 
  rodlike, 
  with 
  slender 
  

   lateral 
  apodemes; 
  stems 
  about 
  a 
  fourth 
  again 
  as 
  long 
  as 
  basistjdes, 
  

   subparallel, 
  the 
  apices 
  slightly 
  swollen, 
  palplike, 
  and 
  bent 
  ventro- 
  

   laterad. 
  

  

  Type. 
  — 
  In 
  Snow 
  collection. 
  University 
  of 
  Kansas, 
  9, 
  Kansas, 
  

   Douglas 
  County, 
  Lawrence. 
  

  

  Material 
  examined. 
  — 
  Florida: 
  Crystal 
  River, 
  Citrus 
  County, 
  July 
  

   7, 
  1949, 
  Sept. 
  18, 
  1950, 
  Hudson, 
  2 
  99, 
  Miami, 
  Dade 
  County, 
  Oct. 
  15, 
  

   1947, 
  Bm-en, 
  1 
  9; 
  Panama 
  City 
  Beach, 
  Bay 
  County, 
  July 
  2, 
  1950, 
  

   McElvey, 
  1 
  cf 
  

  

  Louisiana: 
  Baton 
  Rouge, 
  Apr. 
  30, 
  1947, 
  Wirth, 
  1 
  9. 
  

  

  Jamaica: 
  Newport, 
  Feb. 
  22, 
  1937, 
  Chapin 
  and 
  Blackwelder, 
  1 
  9. 
  

  

  Remarks. 
  — 
  S. 
  (E.) 
  africana 
  Ingram 
  and 
  Macfie, 
  from 
  West 
  Africa, 
  

   the 
  genotype 
  of 
  Eukraiohelea, 
  is 
  almost 
  identical 
  with 
  elegantula, 
  but 
  

   is 
  smaller 
  and 
  the 
  male 
  genitalia 
  differ 
  markedly; 
  the 
  ninth 
  sternite 
  

   does 
  not 
  have 
  the 
  mesal 
  excavation, 
  the 
  dististyles 
  have 
  the 
  apices 
  

   slenderer 
  and 
  rounded, 
  the 
  apices 
  of 
  the 
  parameres 
  are 
  straight 
  and 
  

   pointed, 
  and 
  the 
  membrane 
  of 
  the 
  aedeagus 
  is 
  prolonged 
  mesad 
  in 
  a 
  

   sharp 
  cone. 
  

  

  Subgenus 
  Neostilobezzia 
  Goetghebuer 
  

  

  Neostilobezzia 
  Goetghebuer, 
  in 
  Lindner, 
  Die 
  Fliegen 
  der 
  Palaearktischen 
  Region, 
  

   Lief. 
  78, 
  p. 
  53, 
  1934. 
  (Genotype, 
  Ceratopogon 
  ochraceus 
  Winnertz, 
  1852, 
  

   by 
  present 
  designation.) 
  

  

  Discussion. 
  — 
  Goetghebuer 
  (1934) 
  distinguished 
  this 
  subgenus 
  from 
  

   Stilohezzia 
  by 
  the 
  presence 
  of 
  macrotrichiae 
  at 
  the 
  end 
  of 
  the 
  wing, 
  

   the 
  wing 
  of 
  Stilohezzia 
  being 
  entirely 
  bare. 
  In 
  addition, 
  all 
  the 
  species 
  

   known 
  to 
  me 
  are 
  yellowish 
  or 
  brown 
  in 
  ground 
  color, 
  varying 
  from 
  

   almost 
  whitish 
  to 
  almost 
  black, 
  and 
  the 
  male 
  genitalia 
  have 
  the 
  

   aedeagal 
  sclerites 
  decidedly 
  bent 
  or 
  humped 
  in 
  the 
  middle 
  and 
  the 
  

   basistyle 
  lacks 
  the 
  inner 
  lobe. 
  Species 
  with 
  these 
  characters 
  are 
  

   widely 
  distributed 
  around 
  the 
  world. 
  It 
  is 
  especially 
  significant 
  that 
  

   most 
  of 
  the 
  species 
  described 
  from 
  the 
  temperate 
  regions 
  belong 
  to 
  

   this 
  subgenus, 
  while 
  the 
  tropical 
  species 
  are 
  predominantly 
  the 
  sub- 
  

   genus 
  Stilohezzia. 
  

  

  