﻿THE 
  PHORID 
  FLIES 
  OF 
  GUAM 
  — 
  BOHART 
  409 
  

  

  39. 
  Abdomen: 
  Tergites 
  1 
  to 
  5 
  practically 
  bare, 
  G 
  and 
  7 
  with 
  sparse 
  

   general 
  pubescence 
  and 
  long 
  apical 
  fringe 
  hairs; 
  sternitos 
  distinctly 
  

   setose, 
  the 
  longest 
  ones 
  on 
  st+rnites 
  5 
  to 
  7 
  nearly 
  as 
  long 
  as 
  frontal 
  

   bristles; 
  ovipositor 
  reddish 
  with 
  dorsal 
  and 
  ventral 
  pairs 
  of 
  hairs 
  as 
  

   long 
  as 
  frontal 
  bristles. 
  

  

  Tliis 
  tropicopolitan 
  species 
  is 
  the 
  only 
  representative 
  of 
  its 
  genus 
  

   so 
  far 
  found 
  on 
  Guam, 
  It 
  has 
  been 
  recorded 
  from 
  southern 
  Kurope, 
  

   Asia, 
  and 
  southeastern 
  United 
  States. 
  The 
  figures 
  of 
  the 
  male 
  geni- 
  

   Talia 
  should 
  serve 
  to 
  distinguish 
  it 
  from 
  other 
  species, 
  if 
  they 
  should 
  

   be 
  found. 
  

  

  It 
  was 
  reared 
  on 
  Griam 
  from 
  decaying 
  mollusks 
  and 
  swept 
  from 
  

   vegetation 
  along 
  the 
  seacoast. 
  

  

  Genus 
  CHONOCEPHALUS 
  Wandolleck 
  

  

  CHONOCEPHALUS 
  HIRSUTUS. 
  new 
  species 
  

  

  Figures 
  41, 
  48 
  

  

  Ilolotype^ 
  female. 
  — 
  Length 
  1 
  nun. 
  ; 
  body 
  brown 
  above, 
  testaceous 
  be- 
  

   neath, 
  with 
  a 
  tine 
  transverse 
  subapical 
  dark 
  brown 
  streak 
  extending 
  

   about 
  three- 
  fourths 
  the 
  distance 
  across 
  each 
  abdominal 
  tergite. 
  Head: 
  

   Eyes 
  with 
  about 
  12 
  facets; 
  sides 
  of 
  head 
  with 
  four 
  bristles 
  anterior 
  

   to 
  eyes, 
  the 
  posteriormost 
  about 
  one-third 
  as 
  long 
  as 
  head 
  ; 
  palpi 
  about 
  

   as 
  broad 
  as 
  antennae 
  and 
  with 
  terminal 
  bristles 
  as 
  long 
  as 
  palpi. 
  

   Thorax: 
  Propleura 
  with 
  numerous 
  minute 
  hairs 
  but 
  no 
  dominant 
  one; 
  

   notal 
  pubescence 
  short 
  and 
  erect. 
  Legs: 
  Sparsely 
  hairy 
  : 
  forelegs 
  with 
  

   first 
  tarsal 
  segment 
  a 
  little 
  shorter 
  than 
  next 
  two 
  combined 
  and 
  about 
  

   half 
  as 
  long 
  as 
  first 
  hind 
  tarsal 
  segment. 
  Abdomen: 
  Only 
  slightly 
  

   darker 
  above 
  than 
  below; 
  tergites 
  2 
  to 
  5 
  with 
  two 
  transverse 
  rows 
  of 
  

   setae, 
  excei)t 
  laterally 
  where 
  there 
  are 
  about 
  10 
  setae 
  on 
  each 
  segment 
  

   as 
  strong 
  as 
  the 
  ones 
  in 
  the 
  transverse 
  rows; 
  fifth 
  and 
  sixth 
  sternite.s 
  

   with 
  small 
  setae 
  laterally; 
  sternites 
  4 
  to 
  7 
  with 
  ventral 
  setae, 
  the 
  

   apical 
  ones 
  on 
  sternite 
  7 
  longer 
  than 
  setae 
  in 
  the 
  tergal 
  rows; 
  spatula- 
  

   shaped 
  sternal 
  strnrture 
  with 
  "handle" 
  about 
  three 
  times 
  as 
  long 
  as 
  

   "blade'' 
  and 
  with 
  "blade" 
  about 
  as 
  wide 
  as 
  long. 
  

  

  Allotype^ 
  male. 
  — 
  Length 
  1.1 
  inm.; 
  length 
  of 
  wing 
  1 
  mm.; 
  blackish 
  

   brown, 
  somewhat 
  velvety; 
  auteimae, 
  palpi. 
  ])leurae, 
  and 
  legs 
  brown: 
  

   wings 
  lightly 
  infuscated. 
  Tlcad: 
  Bristles 
  weak, 
  the 
  postooellars 
  

   aud 
  lowermost 
  frontals 
  the 
  strongest; 
  median 
  groove 
  of 
  frons 
  

   )iarrf)\v, 
  not 
  dividing 
  the 
  lower 
  portion 
  into 
  two 
  widely 
  separated 
  

   rid'/es. 
  Thorax: 
  I)oi-sal 
  pubescence 
  sparse 
  and 
  fine: 
  posterior 
  scutal 
  

   margin 
  with 
  four 
  bristles, 
  the 
  basal 
  ])air 
  about 
  half 
  as 
  long 
  as 
  the 
  

   apical. 
  Lateral 
  vestiture 
  as 
  in 
  figure 
  41. 
  'Winrjx: 
  Veins 
  very 
  delicate; 
  

   costal 
  fringe 
  composed 
  of 
  many 
  .short, 
  weak 
  setae; 
  humeral 
  cross 
  

   vein 
  and 
  sub^osta 
  absent. 
  Abdomen: 
  First 
  tergite 
  as 
  long 
  as 
  second 
  

  

  