﻿194 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  98 
  

  

  Amboina, 
  seems 
  to 
  belong 
  to 
  this 
  group, 
  but 
  according 
  to 
  the 
  descrip- 
  

   tion 
  differs 
  in 
  the 
  shining 
  front 
  with 
  definitely 
  arranged 
  tomentose 
  

   spots, 
  the 
  wholly 
  reddish 
  brown 
  antennae, 
  and 
  the 
  broad 
  pale 
  apex 
  

   of 
  the 
  scutellum. 
  

  

  EULALIA 
  CHRYSANER, 
  new 
  species 
  

  

  Male. 
  — 
  A 
  rather 
  slender 
  species. 
  Face 
  and 
  frontal 
  triangle 
  taken 
  

   together 
  forming 
  an 
  abnost 
  equilateral 
  triangle, 
  the 
  base 
  of 
  which 
  

   is 
  about 
  one-third 
  head 
  width 
  ; 
  face 
  from 
  side 
  view 
  rather 
  strongly 
  but 
  

   evenly 
  convex. 
  Head 
  black, 
  oral 
  margin 
  slightly 
  brownish; 
  some 
  

   blackish 
  pile 
  on 
  part 
  of 
  frontal 
  triangle 
  that 
  extends 
  narrowly 
  between 
  

   the 
  eyes, 
  on 
  occiput, 
  and 
  on 
  cheeks 
  ; 
  a 
  small 
  patch 
  of 
  silvery 
  tomentum 
  

   on 
  frontal 
  triangle 
  and 
  two 
  similar 
  patches 
  on 
  each 
  ocular 
  orbit, 
  one 
  

   of 
  these 
  being 
  opposite 
  oral 
  margin 
  and 
  one 
  at 
  about 
  middle 
  of 
  face 
  ; 
  

   face 
  shining, 
  with 
  a 
  few 
  scattered 
  black 
  hairs. 
  Eyes 
  bare, 
  broadly 
  

   contiguous. 
  Antenna 
  slender, 
  one-and-one-third 
  times 
  length 
  of 
  head 
  ; 
  

   ratio 
  of 
  first 
  segment, 
  second 
  segment, 
  flagellum 
  excluding 
  style, 
  and 
  

   style, 
  20 
  : 
  25 
  : 
  45 
  : 
  5 
  ; 
  first 
  and 
  second 
  segments 
  each 
  three 
  times 
  as 
  long 
  

   as 
  maximum 
  width; 
  style 
  short, 
  cylindrical, 
  blunt; 
  first 
  and 
  second 
  

   segments 
  yellow 
  with 
  black 
  hairs; 
  flagellum 
  black 
  with 
  yellowish 
  

   pollen. 
  Proboscis 
  black; 
  palpi 
  small, 
  clavate, 
  yellow 
  with 
  black 
  hair. 
  

  

  Ground 
  color 
  of 
  thorax, 
  including 
  scutellum, 
  entirely 
  black 
  with 
  

   a 
  slightly 
  bluish 
  cast. 
  Mesonotum 
  and 
  scutellum 
  covered 
  with 
  dense 
  

   yellow 
  tomentum 
  interrupted 
  by 
  areas 
  of 
  black 
  tomentum, 
  which 
  takes 
  

   the 
  form 
  of 
  a 
  median 
  stripe, 
  a 
  lateral 
  one 
  on 
  each 
  side, 
  and 
  a 
  rounded 
  

   spot, 
  immediately 
  in 
  front 
  of 
  the 
  suture, 
  on 
  each 
  side 
  of 
  the 
  lateral 
  

   stripe 
  and 
  narrowly 
  comiected 
  with 
  it 
  along 
  the 
  suture 
  ; 
  median 
  stripe 
  

   straight, 
  the 
  lateral 
  ones 
  curved 
  strongly 
  outward 
  anteriorly; 
  the 
  

   three 
  stripes 
  ending 
  slightly 
  short 
  of 
  anterior 
  margin 
  of 
  mesonotum 
  

   and 
  extending 
  about 
  halfway 
  from 
  suture 
  to 
  scutellum. 
  Mesonotum 
  

   and 
  scutellum 
  with 
  scattered 
  though 
  plainly 
  evident 
  black 
  hairs; 
  

   j)leura 
  with 
  a 
  few 
  yellowish 
  hairs 
  above 
  and 
  abundant 
  silvery 
  tomen- 
  

   tum. 
  Scutellum 
  with 
  two 
  small 
  yellow 
  spines. 
  

  

  Coxae 
  black 
  ; 
  femora 
  black, 
  their 
  apices 
  yellow, 
  broadly 
  so 
  on 
  front 
  

   pair, 
  narrowly 
  so 
  on 
  middle 
  and 
  hind 
  pairs, 
  tibiae 
  yellow 
  ; 
  tarsi 
  yellow, 
  

   the 
  last 
  two 
  or 
  three 
  segments 
  brownish 
  ; 
  pile 
  of 
  femora 
  largely 
  black, 
  

   that 
  of 
  legs 
  otherwise 
  mainly 
  yellow. 
  Wings 
  milky 
  ; 
  veins 
  brownish, 
  

   becoming 
  suddenly 
  yellow 
  beyond 
  discal 
  cell; 
  vein 
  r-m 
  absent, 
  the 
  

   radial 
  sector 
  forming 
  the 
  upper 
  margin 
  of 
  the 
  discal 
  cell; 
  veins 
  II4 
  

   and 
  M3 
  absent 
  ; 
  vein 
  Mi 
  distinct 
  at 
  base, 
  thence 
  continued 
  for 
  a 
  short 
  

   distance 
  as 
  a 
  fold. 
  Halteres 
  yellow. 
  

  

  Abdomen 
  mainly 
  reddish 
  yellow 
  ; 
  first 
  sternite, 
  sides 
  of 
  first 
  tergite, 
  

   and 
  basal 
  angles 
  of 
  second 
  tergite, 
  blackish 
  ; 
  fourth 
  and 
  fifth 
  tergites 
  

   and 
  sides 
  of 
  fourth 
  and 
  fifth 
  sternites 
  black, 
  from 
  certain 
  angles 
  

   appearing 
  as 
  distinctly 
  steel-blue. 
  Pile 
  and 
  tomentum 
  of 
  abdomen 
  

   black. 
  Length, 
  7 
  mm. 
  

  

  