﻿HELEID 
  MIDGES, 
  GENUS 
  STILOBEZZIA 
  — 
  WIRTH 
  65 
  

  

  basal 
  apodemes, 
  stems 
  long 
  and 
  slender, 
  with 
  bases 
  slightly 
  swollen, 
  

   each 
  with 
  apex 
  gradually 
  narrowed 
  to 
  a 
  fine 
  apical 
  filament 
  abruptly 
  

   bent 
  and 
  recurved 
  on 
  distal 
  fourth. 
  

  

  Type.—VSNM 
  59946, 
  9, 
  California, 
  Tulare 
  County, 
  6 
  miles 
  east 
  of 
  

   Orosi. 
  (In 
  the 
  original 
  publication 
  the 
  sex 
  was 
  erroneously 
  given 
  

   as 
  cT.) 
  

  

  Material 
  examined.— 
  Caliiormsi: 
  6 
  miles 
  east 
  of 
  Orosi, 
  Tulare 
  

   County, 
  July 
  8, 
  1947, 
  Wirth, 
  2 
  99 
  (type 
  and 
  paratype). 
  

  

  Utah: 
  Moab, 
  June 
  8, 
  1948, 
  Knowlton, 
  Harmston, 
  and 
  Wood, 
  at 
  

   light. 
  Id". 
  

  

  Remarks. 
  — 
  The 
  male 
  genitalia 
  of 
  S.fuscula 
  are 
  practically 
  identical 
  

   with 
  those 
  of 
  S. 
  macfiei 
  Lane, 
  1947, 
  from 
  Brazil. 
  However, 
  the 
  latter 
  

   species 
  has 
  the 
  mesonotum 
  polished 
  black, 
  with 
  lighter 
  areas, 
  and 
  

   under 
  certain 
  light 
  a 
  spot 
  on 
  each 
  side 
  before 
  wing 
  base 
  has 
  purplish 
  

   reflections. 
  Moreover, 
  the 
  absence 
  of 
  macrotrichiae 
  on 
  the 
  wings 
  

   would 
  place 
  S. 
  macfiei 
  in 
  the 
  subgenus 
  Stilobezzia. 
  

  

  3. 
  Stilobezzia 
  {Neostilohezzid) 
  lutea 
  (Malloch), 
  1918 
  

  

  Figure 
  11, 
  6 
  

  

  Hartomyia 
  gilva 
  Malloch, 
  not 
  Coquillett 
  (misidentification) 
  , 
  Bull. 
  Illinois 
  State 
  

  

  Lab. 
  Nat. 
  Hist., 
  vol. 
  10, 
  p. 
  343, 
  1915. 
  

   Hartomyia 
  lutea 
  Malloch, 
  Bull. 
  Brooklyn 
  Ent. 
  Soc, 
  vol. 
  13, 
  p. 
  18, 
  1918, 
  ( 
  9 
  , 
  Illinois). 
  

   Stilobezzia 
  lutea, 
  Johannsen, 
  Ann. 
  Ent. 
  Soc. 
  Amer. 
  vol. 
  36, 
  p. 
  781, 
  1943. 
  

   Stilobezzia 
  mallochinoSmSin, 
  Ent. 
  ^ews, 
  vol. 
  Z5, 
  p. 
  2SS, 
  1924, 
  (c?, 
  9; 
  New 
  York, 
  

  

  Pennsylvania). 
  — 
  Johannsen, 
  Ann. 
  Ent. 
  Soc. 
  Amer., 
  vol. 
  36, 
  p. 
  781, 
  1943 
  

  

  (eastern 
  United 
  States). 
  (New 
  synonymy.) 
  

  

  Description. 
  — 
  Female: 
  Length 
  2.5 
  mm., 
  wing 
  1.9 
  mm. 
  by 
  0.7 
  mm. 
  

   Yellow, 
  including 
  anterior 
  wing 
  veins, 
  antennae, 
  and 
  legs 
  ; 
  mesonotum, 
  

   except 
  humeri, 
  and 
  apex 
  of 
  abdomen 
  rufous 
  brown. 
  Vestiture 
  of 
  

   very 
  long 
  coarse 
  brown 
  bristles, 
  those 
  on 
  scutellum 
  as 
  long 
  as 
  breadth 
  

   of 
  scutellum. 
  

  

  Male: 
  Ninth 
  sternite 
  nearly 
  three 
  times 
  as 
  broad 
  as 
  long, 
  with 
  a 
  

   very 
  broad, 
  shallow, 
  posterior 
  emargination, 
  the 
  membrane 
  spiculate; 
  

   ninth 
  tergite 
  conical, 
  with 
  a 
  prominent, 
  submedian 
  pair 
  of 
  long, 
  fleshy, 
  

   setose 
  lobes. 
  Basistyles 
  simple, 
  twice 
  as 
  long 
  as 
  broad; 
  dististyles 
  

   slightly 
  longer 
  than 
  basistyles, 
  curved, 
  and 
  gradually 
  attenuated, 
  

   with 
  pointed 
  apices. 
  Aedeagus 
  with 
  a 
  pair 
  of 
  oblique 
  sinuate 
  

   sclerites, 
  bases 
  of 
  which 
  are 
  articulated 
  with 
  ventral 
  root 
  of 
  basistyle, 
  

   apices 
  close 
  together, 
  pointed, 
  and 
  bent 
  ventrad. 
  Parameres 
  with 
  

   stout 
  basal 
  apodemes, 
  the 
  stems 
  close 
  together 
  and 
  slightly 
  sinuate, 
  

   flattened 
  and 
  slightly 
  expanded 
  past 
  middle, 
  with 
  apices 
  pointed 
  and 
  

   somewhat 
  curved 
  ventrad. 
  

  

  Type. 
  — 
  In 
  collection 
  Illinois 
  Natural 
  History 
  Survey, 
  9, 
  Illinois, 
  

   Elizabeth. 
  

  

  Material 
  examined. 
  — 
  New 
  Hampshire: 
  Center 
  Harbor, 
  July 
  9, 
  

   Dyar, 
  1 
  9; 
  Franconia, 
  Slosson, 
  1 
  cT. 
  

  

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