﻿478 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  upper 
  part; 
  legs 
  red, 
  with 
  pale 
  red 
  hair; 
  in 
  the 
  male 
  the 
  inner 
  side 
  of 
  

   hind 
  tibiae 
  and 
  tarsi 
  with 
  black 
  hair; 
  male 
  with 
  a 
  large 
  tooth 
  on 
  hind 
  

   femora. 
  

  

  Honduras: 
  Zamorano, 
  both 
  sexes, 
  January 
  23 
  (Rua 
  Williams), 
  

   January 
  29, 
  February 
  2 
  (W. 
  P. 
  Cockerell). 
  It 
  visits 
  Duranta 
  plumieri. 
  

  

  Described 
  from 
  Brazil, 
  but 
  our 
  insect 
  seems 
  to 
  be 
  the 
  same. 
  It 
  is 
  

   C. 
  proxima 
  Friese, 
  which 
  Ducke 
  refers, 
  apparently 
  correctly, 
  to 
  C. 
  

   dentata 
  Smith. 
  Schwarz 
  has 
  recorded 
  C. 
  proxima 
  from 
  Barro 
  Colorado 
  

   Island, 
  Panama, 
  but 
  Friese 
  does 
  not 
  include 
  it 
  in 
  his 
  Costa 
  Rica 
  list. 
  

  

  CENTRIS 
  (RHODOCENTRIS) 
  COSTARICENSIS 
  Crawford 
  

  

  Female. 
  — 
  Length 
  about 
  20 
  mm., 
  anterior 
  wing 
  nearly 
  15; 
  black, 
  

   with 
  the 
  abdomen 
  rich 
  chestnut-red, 
  the 
  first 
  tergite 
  black, 
  with 
  the 
  

   anterior 
  basin 
  red; 
  clypeus 
  bigibbous 
  above, 
  the 
  apical 
  part 
  concave 
  

   and 
  the 
  margin 
  elevated; 
  a 
  yellow 
  band 
  across 
  middle 
  of 
  clypeus, 
  

   very 
  narrowly 
  interrupted 
  in 
  middle 
  ; 
  lateral 
  face 
  marks 
  narrow 
  above, 
  

   extending 
  about 
  to 
  level 
  of 
  antennae; 
  labrum 
  whitish, 
  with 
  a 
  broad 
  

   triangular 
  black 
  area 
  basally; 
  mandibles 
  largely 
  yellow; 
  flagellum 
  

   dusky 
  red 
  beneath; 
  cheeks 
  with 
  pure 
  white 
  hair, 
  thorax 
  with 
  grayish 
  

   hair, 
  on 
  mesonotum 
  extremely 
  short; 
  tegulae 
  black; 
  wings 
  fuliginous, 
  

   with 
  the 
  apical 
  region 
  broadly 
  paler, 
  the 
  dark 
  part 
  obscurely 
  purple; 
  

   hair 
  on 
  outer 
  side 
  of 
  hind 
  tibiae 
  and 
  basitarsi 
  pale 
  reddish. 
  The 
  

   clypeal 
  mark 
  appears 
  as 
  a 
  transverse 
  band, 
  instead 
  of 
  a 
  pair 
  of 
  spots, 
  

   and 
  there 
  are 
  other 
  small 
  differences 
  from 
  Crawford's 
  description, 
  

   but 
  I 
  cannot 
  doubt 
  it 
  is 
  the 
  same 
  species. 
  It 
  was 
  originally 
  described 
  

   by 
  Crawford 
  from 
  Costa 
  Rica 
  as 
  C, 
  friesei, 
  but 
  this 
  name 
  was 
  pre- 
  

   occupied. 
  

  

  Honduras: 
  Zamorano, 
  January 
  29 
  (W. 
  P. 
  Cockerell). 
  

  

  CENTRIS 
  (RHODOCENTRIS) 
  ROBUSTA, 
  new 
  species 
  

  

  Male. 
  — 
  Length 
  about 
  14 
  mm.; 
  head 
  and 
  thorax 
  black; 
  abdomen 
  

   rather 
  dark 
  ferruginous, 
  the 
  second 
  tergite 
  at 
  base 
  with 
  a 
  pale 
  yellow 
  

   band, 
  interrupted 
  in 
  middle, 
  greatly 
  broadened 
  at 
  sides; 
  cream- 
  

   colored 
  face 
  marks 
  including 
  clypeus, 
  except 
  a 
  very 
  broad 
  black 
  band 
  

   on 
  each 
  side, 
  a 
  small 
  transverse 
  supraclypeal 
  mark, 
  narrow 
  lateral 
  

   face 
  marks, 
  entire 
  labrum 
  and 
  outer 
  side 
  of 
  mandibles, 
  scape 
  also 
  

   light 
  in 
  front; 
  flagellum 
  entirely 
  black; 
  cheeks 
  with 
  white 
  hair, 
  vertex 
  

   with 
  some 
  dark 
  hairs; 
  thorax 
  above 
  with 
  hair 
  clear 
  ferruginous; 
  

   tegulae 
  pale 
  reddish; 
  wings 
  strongly 
  dusky; 
  femora 
  black, 
  with 
  the 
  

   knees 
  more 
  or 
  less 
  red, 
  especially 
  the 
  hind 
  ones, 
  in 
  which 
  the 
  red 
  

   extends 
  as 
  a 
  broad 
  stripe 
  on 
  inner 
  side 
  to 
  base 
  of 
  femur; 
  front 
  tibiae 
  

   dark, 
  but 
  their 
  tarsi 
  red; 
  middle 
  and 
  hind 
  tibiae 
  and 
  tarsi 
  dusky 
  

   reddish, 
  the 
  hind 
  tibiae 
  with 
  a 
  thick 
  brush 
  of 
  black 
  hair 
  on 
  apical 
  

   part; 
  first 
  abdominal 
  tergite 
  black, 
  apex 
  of 
  abdomen 
  with 
  light 
  red 
  

   hair. 
  

  

  