﻿414 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  ge 
  

  

  ciphora) 
  ; 
  ovipositor, 
  when 
  exserted, 
  composing 
  seventh 
  and 
  eighth 
  

   segments, 
  which 
  are 
  tubular 
  and 
  have 
  fine 
  chitinized 
  striae, 
  and 
  

   terminal 
  structures 
  composed 
  of 
  a 
  dorsal 
  piece 
  connected 
  to 
  a 
  pair 
  

   of 
  ventral 
  sclerites 
  and 
  a 
  pair 
  of 
  spatulate 
  distal 
  processes. 
  

  

  This 
  genus 
  is 
  in 
  the 
  subfamily 
  Phorinae 
  of 
  Schmitz 
  and 
  runs 
  close 
  

   to 
  Gitrago 
  Schmitz 
  in 
  his 
  key 
  to 
  the 
  world 
  genera 
  (1929a). 
  It 
  differs 
  

   from 
  this, 
  however, 
  in 
  the 
  possession 
  of 
  an 
  anterodorsal 
  bristle 
  on 
  the 
  

   hind 
  tibiae 
  and 
  in 
  the 
  strongly 
  produced 
  clypeus. 
  It 
  differs 
  from 
  

   Hypocera 
  in 
  having 
  bare 
  mesopleura 
  and 
  from 
  Diploneura 
  in 
  lacking 
  

   a 
  free 
  end 
  to 
  the 
  radial 
  vein. 
  

  

  Type 
  of 
  the 
  genus 
  : 
  Parafannia 
  moUuscovora^ 
  new 
  species. 
  

  

  PARAFANNIA 
  MOLLUSCOVORA, 
  new 
  species 
  

   Figure 
  46 
  

  

  Holotype^ 
  female. 
  — 
  Length 
  (expanded) 
  2.2 
  mm.; 
  length 
  of 
  wing 
  

   1.6 
  mm.; 
  sooty 
  black, 
  antennae, 
  palpi, 
  legs, 
  pleura 
  dark 
  yellowish 
  

   brown 
  to 
  dark 
  brown 
  or 
  nearly 
  black, 
  halteres 
  smoky 
  brown, 
  sides 
  

   and 
  venter 
  of 
  abdomen 
  smoky 
  yellow, 
  becoming 
  sooty 
  apically 
  ; 
  wings 
  

   slightly 
  infuscated, 
  veins 
  brown. 
  Head: 
  Frons 
  about 
  twice 
  as 
  broad 
  

   as 
  long; 
  antiales 
  over 
  twice 
  as 
  close 
  to 
  supra-antennals 
  as 
  to 
  eyes; 
  

   lower 
  frontals 
  and 
  preocellars 
  nearly 
  in 
  line; 
  clypeus 
  with 
  a 
  dark 
  

   basal 
  band. 
  Thorax: 
  Scutum 
  with 
  rather 
  sparse 
  brownish 
  pubes- 
  

   cence; 
  scutellar 
  bristles 
  longer 
  than 
  scutellum 
  and 
  bending 
  inward; 
  

   hindmost 
  pair 
  of 
  lateral 
  scutal 
  bristles 
  about 
  as 
  long 
  as 
  distance 
  from 
  

   humeral 
  cross 
  vein 
  to 
  apex 
  of 
  the 
  radius 
  ; 
  propleura 
  with 
  one 
  slender 
  

   seta 
  on 
  posterior 
  angles, 
  two 
  or 
  three 
  small 
  hairs 
  near 
  the 
  posterior 
  

   margins, 
  and 
  three 
  small 
  setae 
  near 
  the 
  ventroposterior 
  corners. 
  

   Legs: 
  Hind 
  tibiae 
  and 
  tarsi 
  together 
  about 
  four-fifths 
  as 
  long 
  as 
  

   wings, 
  the 
  tibiae 
  four-ninths 
  as 
  long 
  as 
  tarsi 
  ; 
  subbasal 
  bristle 
  on 
  hind 
  

   tibiae 
  about 
  as 
  long 
  as 
  tibial 
  width 
  at 
  that 
  level 
  ; 
  posterior 
  metatarsi 
  

   one-fourth 
  as 
  broad 
  as 
  long; 
  dorsal 
  margins 
  of 
  midtibiae 
  mostly 
  

   smoky 
  yellow 
  but 
  with 
  broad 
  dark 
  band 
  in 
  region 
  of 
  subbasal 
  pair 
  of 
  

   bristles 
  ; 
  subbasal 
  bristle 
  on 
  inner 
  dorsal 
  margins 
  of 
  f 
  oretibiae 
  shorter 
  

   than 
  tibiae 
  width. 
  Wings: 
  Setae 
  fringe 
  of 
  costa 
  short, 
  dense, 
  and 
  reg- 
  

   ular; 
  prehumeral 
  portion 
  of 
  costa 
  with 
  two 
  long 
  bristles; 
  bristle 
  on 
  

   base 
  of 
  Rs 
  about 
  as 
  long 
  as 
  lateral 
  bristles 
  on 
  frons; 
  placement 
  of 
  

   veins 
  as 
  in 
  figure 
  46. 
  Abdomen: 
  First 
  tergite 
  about 
  half, 
  third 
  about 
  

   two-thirds 
  as 
  long 
  as 
  second 
  ; 
  tergites 
  1 
  to 
  5 
  practically 
  bare 
  except 
  for 
  

   tiny 
  apical 
  fringes; 
  sides 
  and 
  venter 
  of 
  abdomen 
  with 
  scattered 
  

   setae, 
  which 
  become 
  longer 
  and 
  more 
  numerous 
  toward 
  apical 
  seg- 
  

   ments 
  and 
  have 
  black 
  pigmentation 
  at 
  their 
  bases 
  ; 
  processes 
  at 
  tip 
  of 
  

   ovipositor 
  with 
  a 
  few 
  long 
  hairs 
  ; 
  seventh 
  and 
  eighth 
  abdominal 
  seg- 
  

   ments 
  (forming 
  "tube" 
  of 
  ovipositor) 
  finely 
  striated 
  with 
  black, 
  the 
  

   latter 
  with 
  a 
  pair 
  of 
  dorsal 
  longitudinal 
  chitinous 
  rods. 
  

  

  