﻿HELEID 
  MIDGES, 
  GENUS 
  STILOBEZZIA 
  — 
  WIRTH 
  61 
  

  

  Table 
  1. 
  — 
  Proportions 
  of 
  segments 
  of 
  hind 
  legs 
  of 
  female 
  Stllobezzia 
  species. 
  

  

  Species 
  

  

  9. 
  

   10. 
  

   11. 
  

   12. 
  

   13. 
  

   14. 
  

   15. 
  

   16. 
  

   17. 
  

  

  elegant 
  ula 
  

  

  fuscula 
  

  

  lutea 
  

  

  stonei 
  

  

  antennalis 
  

  

  beckae 
  

  

  bicolor 
  

  

  bulla 
  

  

  coquilletti 
  

  

  diversa 
  

  

  glauca 
  

  

  pallidiventrio 
  

  

  pruinosa 
  

  

  punctipes 
  

  

  rabelloi 
  

  

  sybleae 
  

  

  viridis 
  

  

  12 
  

  

  8 
  

  

  15 
  

  

  10 
  

  

  10 
  

   5 
  

  

  13 
  

   5 
  

  

  10 
  

  

  10 
  

  

  15 
  

  

  5 
  

  

  8 
  

  

  Subgenus 
  Eukraiohelea 
  Ingram 
  and 
  Macfie, 
  1921 
  

  

  Eukraiohelea 
  Ingram 
  and 
  Macfie, 
  Ann. 
  Trop. 
  Med. 
  Parasit., 
  vol. 
  15, 
  p. 
  347, 
  1921. 
  — 
  

   Johannsen, 
  Arch. 
  IlydrobioL, 
  Suppl., 
  vol. 
  9, 
  p. 
  430, 
  1931; 
  Journ. 
  New 
  York 
  

   Ent. 
  Soc, 
  vol. 
  42, 
  p. 
  344, 
  1934.— 
  Macfie, 
  Ann. 
  Trop. 
  Med. 
  Parasit., 
  vol. 
  34, 
  

   p. 
  22, 
  1940.— 
  Tokunaga, 
  Tenthredo, 
  vol. 
  3, 
  p. 
  344, 
  1940.— 
  Johannsen, 
  Ann. 
  

   Ent. 
  Soc. 
  Amer., 
  vol. 
  36, 
  p. 
  781, 
  1943; 
  Bull. 
  Bishop 
  Mus. 
  No. 
  189, 
  p. 
  190, 
  1946. 
  

   (Genotype, 
  Eukraiohelea 
  africana 
  Ingram 
  and 
  Macfie, 
  1921; 
  designated 
  by 
  

   Macfie, 
  1940.) 
  

  

  Diagnosis. 
  — 
  First 
  radial 
  cell 
  absent, 
  the 
  r-m 
  crossvein 
  nearly 
  form- 
  

   ing 
  a 
  straight 
  line 
  with 
  Ri, 
  the 
  latter 
  arising 
  just 
  a 
  little 
  more 
  toward 
  

   base 
  of 
  wing; 
  fore 
  femora 
  with 
  2 
  or 
  3 
  ventral 
  spines 
  but 
  not 
  swollen; 
  

   male 
  aedeagus 
  with 
  hyaline 
  posterior 
  membrane, 
  parameres 
  long 
  and 
  

   very 
  slender. 
  

  

  Discussion.' 
  — 
  Johannsen 
  (1934) 
  placed 
  Eukraiohelea 
  as 
  a 
  subgenus 
  

   of 
  Parabezzia 
  Malloch, 
  1915. 
  However, 
  as 
  shown 
  by 
  a 
  comparison 
  

   of 
  the 
  male 
  genitalia 
  of 
  P. 
  petiolata 
  Malloch, 
  1915, 
  with 
  those 
  of 
  the 
  

   four 
  species 
  of 
  Eukraiohelea 
  whose 
  males 
  have 
  been 
  described, 
  the 
  

   latter 
  are 
  much 
  more 
  closely 
  related 
  to 
  Stilobezzia. 
  The 
  following 
  

   species 
  have 
  been 
  correctly 
  placed 
  in 
  Eukraiohelea: 
  E. 
  africana 
  Ingram 
  

   and 
  Macfie, 
  1921, 
  E. 
  versicolor 
  Ingram 
  and 
  Macfie, 
  1921, 
  and 
  E.foyi 
  

   Ingram 
  and 
  Macfie, 
  1922, 
  all 
  from 
  West 
  Africa; 
  Stilobezzia 
  (Eukraio- 
  

   helea) 
  aberrans 
  Johannsen, 
  1931, 
  from 
  Java; 
  S. 
  (E.) 
  esakiana 
  Tokunaga, 
  

   1940, 
  from 
  the 
  Caroline 
  Islands; 
  and 
  Eukraiohelea 
  amnigena 
  Macfie, 
  

   1935, 
  from 
  Brazil. 
  Eukraiohelea 
  inusitata 
  Johannsen, 
  1946, 
  from 
  

  

  