﻿188 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  2. 
  Flagellum 
  of 
  antenna 
  elongated, 
  consisting 
  of 
  6 
  to 
  8 
  closely 
  united 
  segments, 
  

  

  the 
  last 
  segment 
  sometimes 
  forming 
  a 
  short 
  style, 
  but 
  never 
  an 
  arista 
  

  

  (Stratiomyinae) 
  3 
  

  

  Flagellum 
  of 
  antenna 
  with 
  the 
  basal 
  complex 
  short 
  and 
  bearing 
  a 
  well- 
  

   defined 
  apical 
  or 
  subapical 
  arista 
  (Sarginae) 
  9 
  

  

  3. 
  Flagellum 
  of 
  antenna 
  8-segmented, 
  without 
  a 
  terminal 
  style 
  ; 
  abdomen, 
  from 
  

  

  dorsal 
  view, 
  almost 
  circular 
  in 
  outline, 
  metallic 
  blue; 
  wings 
  uniformly 
  

  

  infuscated 
  Cyphomyia 
  marshalli 
  Lindner 
  

  

  Flagellum 
  of 
  antenna 
  6-segmented, 
  the 
  penultimate 
  segment 
  very 
  short, 
  

   tapering, 
  the 
  last 
  one 
  forming 
  a 
  short 
  style; 
  abdomen 
  distinctly 
  longer 
  

   than 
  wide 
  ; 
  wings 
  not 
  or 
  but 
  lightly 
  infuscated 
  4 
  

  

  4. 
  Mesonotum 
  densely 
  golden 
  pollinose, 
  with 
  2 
  prominent 
  stripes 
  of 
  black 
  pollen 
  

  

  on 
  the 
  disc 
  (males; 
  females 
  unknown) 
  5 
  

  

  Mesonotum 
  not 
  golden 
  pollinose; 
  or 
  if 
  so 
  with 
  3 
  narrow 
  stripes 
  of 
  black 
  

   pollen, 
  the 
  outer 
  ones 
  arcuate 
  anteriorly, 
  on 
  the 
  disc 
  6 
  

  

  5. 
  Black 
  mesonotal 
  stripes 
  not 
  much 
  broader 
  than 
  the 
  golden 
  one 
  separating 
  

  

  them 
  ; 
  no 
  black 
  pollinose 
  area 
  on 
  scutellum. 
  

  

  Eulalia 
  aureovestis, 
  new 
  species 
  

   Black 
  mesonotal 
  stripes 
  3 
  or 
  more 
  times 
  as 
  broad 
  as 
  the 
  narrow 
  golden 
  stripe 
  

   separating 
  them, 
  and 
  extending 
  onto 
  the 
  scutellum. 
  

  

  Eulalia 
  aureovestis 
  subaurea, 
  new 
  subspecies 
  

  

  6. 
  First 
  and 
  second 
  segments 
  of 
  antenna 
  each 
  scarcely 
  longer 
  than 
  wide 
  7 
  

  

  First 
  and 
  second 
  antennal 
  segments 
  each 
  2% 
  to 
  3 
  times 
  as 
  long 
  as 
  wide; 
  

  

  vein 
  r-m 
  absent, 
  the 
  radial 
  sector 
  broadly 
  bordering 
  the 
  discal 
  cell 
  8 
  

  

  7. 
  Vein 
  r-m 
  distinctly 
  present, 
  though 
  short; 
  vein 
  Mi 
  distinct 
  almost 
  to 
  wing 
  

  

  margin 
  ; 
  abdomen 
  largely 
  black 
  in 
  both 
  sexes. 
  

  

  Eulalia 
  maculata 
  (de 
  Meijere) 
  

   Vein 
  r-m 
  absent, 
  the 
  radial 
  sector 
  broadly 
  bordering 
  the 
  discal 
  cell; 
  vein 
  

   Ml 
  distinct 
  only 
  at 
  base; 
  abdomen 
  of 
  female 
  greenish 
  yellow 
  (male 
  un- 
  

   known) 
  Eulalia 
  boharti, 
  new 
  species 
  

  

  8. 
  Eyes 
  bare 
  ; 
  mesonotum 
  with 
  dense 
  golden 
  or 
  yellowish 
  tomentum 
  interrupted 
  

  

  by 
  black 
  stripes 
  Eulalia 
  chrysaner, 
  new 
  si)ecies 
  

  

  Eyes 
  of 
  the 
  male 
  (female 
  unknown) 
  distinctly 
  pilose; 
  tomentum 
  of 
  mesono- 
  

   tum 
  wholly 
  black 
  Eulalia 
  subobscura, 
  new 
  species 
  

  

  9. 
  Second 
  antennal 
  segment, 
  from 
  inner 
  aspect, 
  prolonged 
  in 
  a 
  fingerlike 
  process 
  

  

  deeply 
  into 
  the 
  flagellum 
  ; 
  lower 
  squama 
  transverse, 
  without 
  a 
  projection 
  ; 
  

  

  origin 
  of 
  vein 
  B,,^ 
  at 
  or 
  slightly 
  before 
  cross 
  vein 
  r-m 
  10 
  

  

  Second 
  antennal 
  segment, 
  from 
  inner 
  aspect, 
  at 
  most 
  gently 
  rounded, 
  not 
  

   deeply 
  produced 
  into 
  flagellum; 
  lower 
  squama 
  with 
  a 
  prominent, 
  pilose, 
  

   fingerlike 
  or 
  lobelike 
  process; 
  origin 
  of 
  vein 
  Rj+s 
  far 
  beyond 
  cross 
  vein 
  

   r-m 
  12 
  

  

  10. 
  Mesonotum 
  and 
  abdomen 
  bluish 
  black 
  ; 
  wing 
  as 
  long 
  as 
  entire 
  body. 
  

  

  Ptecticus 
  salomonensis 
  Lindner 
  

  

  Mesonotum 
  and 
  abdomen 
  chiefly 
  brown 
  or 
  yellow; 
  wing 
  about 
  as 
  long 
  as 
  

  

  thorax 
  and 
  abdomen 
  combined 
  11 
  

  

  11. 
  Abdomen 
  prominently 
  marked 
  with 
  blackish 
  brown; 
  hind 
  tarsus 
  white 
  on 
  

  

  second, 
  third, 
  and 
  base 
  of 
  fourth 
  segments, 
  otherwise 
  black. 
  

  

  Ptecticus 
  isabelensis 
  Lindner 
  

   Abdomen, 
  except 
  genitalia, 
  orange 
  in 
  ground 
  color; 
  hind 
  tarsus 
  yellow 
  on 
  

   second 
  segment, 
  sometimes 
  also 
  on 
  at 
  least 
  parts 
  of 
  first 
  and 
  third, 
  other- 
  

   wise 
  black 
  or 
  appearing 
  so 
  because 
  of 
  black 
  hair. 
  

  

  Ptecticus 
  repensans 
  (Walker) 
  

  

  12. 
  Ocellar 
  triangle 
  much 
  longer 
  than 
  broad; 
  eyes 
  separated 
  in 
  both 
  sexes, 
  

  

  narrowly 
  so 
  in 
  the 
  male, 
  somewhat 
  more 
  broadly 
  so 
  in 
  the 
  female. 
  

  

  Sarffus 
  mactans 
  Walker 
  

  

  