﻿402 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  margins 
  of 
  hind 
  femora 
  with 
  hairs 
  of 
  apical 
  third 
  longer 
  than 
  else- 
  

   where. 
  Wings: 
  About 
  two-fifths 
  as 
  broad 
  as 
  long; 
  setae 
  along 
  costa 
  

   moderately 
  long, 
  becoming 
  more 
  upright 
  beyond 
  point 
  midway 
  from 
  

   humeral 
  cross 
  vein 
  to 
  apex 
  of 
  Ri 
  ; 
  costa 
  nearly 
  two-thirds 
  as 
  long 
  as 
  

   wings 
  ; 
  placement 
  of 
  veins 
  as 
  shown 
  in 
  figure 
  36 
  ; 
  second 
  vein 
  without 
  

   setae 
  basally. 
  Ahdcnnen: 
  Lateral 
  areas 
  of 
  first 
  tergite 
  rather 
  closely 
  

   covered 
  with 
  minute 
  hairs 
  ; 
  tergites 
  3 
  to 
  5 
  each 
  with 
  lateral 
  patches 
  of 
  

   a 
  few 
  small 
  hairs; 
  sides 
  of 
  tergites 
  5 
  and 
  6 
  uniformly 
  haired, 
  with, 
  

   distinct 
  apical 
  fringe, 
  especially 
  on 
  tergite 
  6 
  ; 
  sternites 
  3 
  to 
  6 
  ventrally 
  

   with 
  rather 
  numerous 
  setae 
  or 
  coarse 
  hairs 
  ; 
  genitalia 
  of 
  moderate 
  size, 
  

   the 
  lamella 
  large, 
  creamy 
  in 
  color, 
  with 
  terminal 
  bristles 
  long 
  and 
  

   delicate. 
  

  

  Holotype 
  (U. 
  S. 
  N. 
  M. 
  No. 
  57991) 
  and 
  three 
  paratype 
  males 
  : 
  Agana, 
  

   Guam, 
  June 
  1945, 
  reared 
  from 
  fresh 
  pig 
  dung 
  (G. 
  E. 
  Bohart). 
  One 
  

   paratype 
  male 
  : 
  Pago 
  River, 
  Guam, 
  June 
  1945, 
  swept 
  from 
  dense 
  foliage 
  

   near 
  a 
  garbage 
  dump 
  (G. 
  E. 
  Bohart). 
  

  

  Reinarhs. 
  — 
  On 
  Guam 
  this 
  species 
  resembles 
  only 
  scalaris 
  Loew 
  in 
  

   general 
  appearance 
  but 
  can 
  be 
  separated 
  by 
  its 
  greater 
  extent 
  of 
  yellow 
  

   on 
  the 
  abdomen, 
  more 
  confined 
  propleural 
  pubescence, 
  and 
  more 
  deli- 
  

   cate 
  terminal 
  bristles 
  on 
  the 
  genitalia. 
  It 
  is 
  close 
  to 
  sauteri 
  Brues 
  from 
  

   the 
  Philippines 
  (Brues, 
  1936) 
  but 
  has 
  longer 
  costal 
  setae, 
  darker 
  palpi 
  

   and 
  legs 
  (grayish 
  instead 
  of 
  whitish), 
  and 
  weaker 
  supra-antennal 
  

   bristles. 
  It 
  runs 
  close 
  to 
  safunae 
  Malloch 
  from 
  Samoa 
  (Malloch, 
  1935) 
  

   but 
  differs 
  by 
  having 
  yellow 
  f 
  rons 
  and 
  antennae 
  and 
  more 
  yellow 
  on 
  the 
  

   abdomen. 
  In 
  Malloch 
  's 
  key 
  to 
  North 
  American 
  species 
  (1912) 
  it 
  runs 
  

   to 
  subflava 
  but 
  has 
  narrower 
  costal 
  cells, 
  more 
  bristles 
  on 
  the 
  pro- 
  

   pleura, 
  and 
  weaker 
  hairs 
  on 
  the 
  sides 
  of 
  second 
  abdominal 
  tergite. 
  It 
  

   is 
  much 
  larger 
  than 
  hisecta 
  Brues 
  to 
  which 
  it 
  runs 
  in 
  Brues's 
  key, 
  is 
  

   a 
  deeper 
  yellow 
  and 
  has 
  a 
  longer 
  costa. 
  

  

  MEGASELIA 
  STUNTZI, 
  new 
  species 
  

  

  Figure 
  35 
  

  

  Holotype^ 
  male. 
  — 
  Length 
  1.7 
  mm.; 
  length 
  of 
  wing 
  1.4 
  mm.; 
  body 
  

   dark 
  brown 
  above, 
  brown 
  laterally 
  and 
  ventrally, 
  without 
  yellow 
  or 
  

   creamy 
  areas 
  ; 
  hind 
  femora 
  apically 
  darkened. 
  Head 
  : 
  Frontal 
  bristles 
  

   relatively 
  short 
  but 
  very 
  thick 
  and 
  arranged 
  as 
  in 
  figure 
  35 
  ; 
  lower 
  mar- 
  

   gin 
  of 
  head, 
  seen 
  from 
  the 
  side, 
  with 
  six 
  bristles. 
  Thorax: 
  Dorsal 
  pu- 
  

   bescence 
  short 
  and 
  close 
  ; 
  lateral 
  margin 
  of 
  mesonotum 
  with 
  four 
  stout 
  

   bristles 
  before 
  the 
  wing 
  base 
  ; 
  propleura 
  with 
  about 
  12 
  scattered 
  small 
  

   hairs 
  in 
  the 
  upper 
  posterior 
  third 
  and 
  two 
  small 
  bristles 
  at 
  the 
  ventral 
  

   corners; 
  posterodorsal 
  portion 
  of 
  mesopleura 
  with 
  a 
  patch 
  of 
  about 
  

   12 
  short 
  hairs 
  a 
  little 
  stronger 
  than 
  propleural 
  ones 
  ; 
  scutellum 
  with 
  

   two 
  pairs 
  of 
  strong 
  subequal 
  bristles; 
  posterior 
  scutal 
  margin 
  with 
  

   two 
  pairs 
  of 
  bristles, 
  the 
  inner 
  nearly 
  as 
  long 
  as 
  the 
  outer. 
  Legs: 
  

  

  