﻿98 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.98 
  

  

  Wings 
  extending 
  to 
  about 
  middle 
  of 
  second 
  tergite, 
  not 
  ciliated; 
  mesonotum 
  

   not 
  so 
  strongly 
  punctate, 
  punctures 
  for 
  most 
  part 
  clearly 
  separated; 
  

   third 
  tergite 
  irregularly 
  striate 
  toward 
  base, 
  with 
  sparse 
  scattered 
  punc- 
  

   tures; 
  left 
  mandible 
  with 
  three 
  teeth 
  (6) 
  pulchricomis, 
  new 
  species 
  

  

  8. 
  Third 
  tergite 
  closely 
  punctate, 
  not 
  reticulate 
  (7) 
  crassellus, 
  new 
  name 
  

  

  Third 
  tergite 
  not 
  closely 
  punctate, 
  distinctly 
  reticulate 
  9 
  

  

  9. 
  Legs, 
  reddish 
  yellow 
  (8) 
  solitarius 
  ( 
  Aslunead) 
  

  

  Legs 
  mostly 
  darker 
  10 
  

  

  10. 
  Frons 
  just 
  below 
  anterior 
  ocellus 
  not 
  or 
  very 
  delicately 
  sculptured 
  11 
  

  

  Frons 
  just 
  below 
  anterior 
  ocellus 
  strongly 
  sculptured 
  12 
  

  

  11. 
  Frons 
  with 
  a 
  very 
  fine 
  impressed 
  line 
  from 
  antennae 
  to 
  anterior 
  ocellus, 
  with- 
  

  

  out 
  striae 
  around 
  base 
  of 
  this 
  impressed 
  line; 
  third 
  tergite 
  1.4 
  times 
  as 
  

  

  wide 
  as 
  long 
  (9) 
  nitidus, 
  new 
  species 
  

  

  Frons 
  with 
  a 
  distinct 
  impressed 
  median 
  line, 
  striate 
  just 
  above 
  antennae; 
  

   third 
  tergite 
  1.5 
  times 
  as 
  wide 
  as 
  long 
  (10) 
  esilis, 
  new 
  species 
  

  

  12. 
  Frons 
  strongly 
  convex; 
  head 
  about 
  one 
  and 
  one-fourth 
  times 
  as 
  wide 
  as 
  long. 
  

  

  (11) 
  crassiceps, 
  new 
  species 
  

   Frons 
  not 
  strongly 
  convex; 
  head 
  about 
  twice 
  as 
  wide 
  as 
  long 
  13 
  

  

  13. 
  Petiole 
  with 
  a 
  trough-shaped 
  depression 
  across 
  middle 
  14 
  

  

  Petiole 
  not 
  depressed 
  across 
  middle 
  15 
  

  

  14. 
  Third 
  tergite 
  faintly 
  reticulate; 
  posterior 
  tibiae 
  reddish 
  brown. 
  

  

  (12) 
  punctithorax, 
  new 
  species 
  

  

  Third 
  tergite 
  with 
  impressed 
  reticulation; 
  posterior 
  tibiae 
  dark 
  brown, 
  

  

  reddish 
  yellow 
  basally 
  (13) 
  subapterus, 
  new 
  species 
  

  

  15. 
  Legs 
  brownish; 
  coxae 
  brown 
  (14) 
  rufosignatus 
  (Kieffer) 
  

  

  Coxae, 
  femora, 
  and 
  tibiae 
  (except 
  the 
  latter 
  proximally) 
  black 
  or 
  very 
  dark 
  

  

  brown 
  16 
  

  

  16. 
  Body 
  1.42 
  mm. 
  in 
  length 
  (15) 
  robustus, 
  new 
  species 
  

  

  Smaller, 
  body 
  1.18 
  mm. 
  in 
  length 
  (16) 
  finitimus, 
  new 
  species 
  

  

  17. 
  Parapsidal 
  grooves 
  more 
  or 
  less 
  well 
  defined, 
  complete 
  or 
  nearly 
  so 
  18 
  

  

  Mesonotum 
  variously 
  sculptured, 
  parapsidal 
  grooves 
  sometimes 
  partly 
  indi- 
  

   cated, 
  never 
  complete 
  and 
  always 
  more 
  or 
  less 
  obscured 
  by 
  sculpture. 
  31 
  

  

  18. 
  Mesonotum 
  punctate, 
  striate 
  posteriorly 
  19 
  

  

  Mesonotum 
  maj' 
  be 
  either 
  partly 
  punctate 
  or 
  partly 
  striate 
  but 
  not 
  both. 
  20 
  

  

  19. 
  Mesonotum 
  rugose 
  anteriorly; 
  scutellum 
  smooth, 
  slightly 
  roughened 
  at 
  

  

  anterior 
  margin; 
  parapsidal 
  grooves 
  distinct 
  entire 
  length 
  of 
  mesono- 
  

   tum 
  (17) 
  pallidipes 
  (Ashmead) 
  

  

  Mesonotum 
  not 
  rugose 
  anteriorly; 
  scutellum 
  strongly 
  reticulate, 
  high 
  ridges 
  

   separating 
  enclosed 
  areas; 
  parapsidal 
  grooves 
  perceptible 
  but 
  not 
  sharply 
  

   defined, 
  difficult 
  to 
  detect 
  posteriorly 
  in 
  coarse 
  sculpture. 
  

  

  (18) 
  striopunctatus, 
  new 
  species 
  

  

  20. 
  Third 
  tergite 
  with 
  sculpture 
  21 
  

  

  Third 
  tergite 
  without 
  sculpture 
  26 
  

  

  21. 
  Third 
  tergite 
  punctate, 
  not 
  striate 
  toward 
  base. 
  

  

  (19) 
  erythrogaster, 
  new 
  species 
  

   Third 
  tergite 
  striate 
  toward 
  base 
  22 
  

  

  22. 
  Mesonotum 
  longitudinally 
  striate 
  posteriorly 
  (20) 
  sulcatus 
  (Kieffer) 
  

  

  Mesonotum 
  not 
  striate 
  23 
  

  

  23. 
  Scape 
  entirely 
  light 
  yellowish 
  brown 
  (21) 
  erythropus 
  (Ashmead) 
  

  

  Scape 
  black 
  entirely 
  or 
  in 
  part 
  24 
  

  

  24. 
  Scape 
  yellow 
  basally; 
  legs 
  yellow 
  or 
  light 
  brown. 
  _ 
  (22) 
  crosbyi, 
  new 
  species 
  

   Scape 
  entirely 
  black; 
  legs 
  mostly 
  dark 
  brown 
  25 
  

  

  