﻿62 
  

  

  10 
  (5) 
  Intermediate 
  tibiae 
  with 
  a 
  distinct 
  calcar. 
  

  

  11 
  (28) 
  Thorax 
  or 
  abdomen 
  or 
  both 
  with 
  red 
  markings. 
  

  

  12 
  (13) 
  Basal 
  abdominal 
  segment 
  entirely 
  red 
  above, 
  or 
  at 
  most 
  a 
  little 
  

  

  infuscate, 
  second 
  also 
  largely 
  red 
  as 
  also 
  the 
  tegulae. 
  

  

  Odynerus 
  frater. 
  

  

  13 
  (12) 
  Basal 
  abdominal 
  segment 
  black 
  with 
  a 
  red 
  hind-margin. 
  

  

  14 
  (15) 
  Prothorax 
  and 
  mesopleura 
  without 
  red 
  spots 
  (female). 
  

  

  O. 
  paliidicola. 
  

  

  15 
  (14) 
  Prothorax 
  and 
  mesopleura 
  marked 
  with 
  red. 
  

  

  16 
  (21) 
  Second 
  ventral 
  segment 
  very 
  strongly 
  and 
  abruptly 
  raised 
  

  

  behind 
  the 
  transverse 
  sulcature 
  to 
  a 
  height 
  much 
  greater 
  

   than 
  that 
  of 
  the 
  basal 
  part 
  of 
  the 
  segment. 
  

  

  17 
  (20) 
  Red 
  colour 
  of 
  pronotum 
  extended 
  back 
  along 
  its 
  margin 
  to 
  

  

  reach 
  the 
  tegulae. 
  

  

  18 
  (19) 
  Second 
  ventral 
  segment 
  very 
  strongly 
  raised 
  from 
  the 
  costae; 
  

  

  clypeus 
  of 
  male 
  red 
  at 
  base; 
  mesonotum 
  of 
  female 
  more 
  

   finely 
  and 
  irregularly 
  punctured. 
  O. 
  leiodemas. 
  

  

  19 
  (18) 
  Second 
  ventral 
  segment 
  still 
  more 
  strongly 
  raised 
  from 
  the 
  

  

  sulcature 
  ; 
  clypeus 
  of 
  the 
  male 
  not 
  red 
  at 
  the 
  base 
  ; 
  mesono- 
  

   tum 
  of 
  female 
  more 
  strongly 
  and 
  evenly 
  punctured. 
  

  

  O. 
  pseudochromoides, 
  sp. 
  nov. 
  

  

  20 
  (17) 
  Red 
  markings 
  of 
  pronotum 
  not 
  extended 
  back 
  along 
  the 
  margin 
  

  

  to 
  touch 
  the 
  tegulae. 
  O. 
  pseudochromus. 
  

  

  21 
  (16) 
  Second 
  ventral 
  segment 
  not 
  very 
  greatly 
  and 
  abruptly 
  raised 
  

  

  behind 
  the 
  costae; 
  at 
  most 
  it 
  is 
  raised 
  to 
  a 
  height 
  about 
  

   equal 
  to 
  the 
  basal 
  part 
  of 
  the 
  segment 
  in 
  front 
  of 
  the 
  costae. 
  

  

  22 
  (23) 
  Mesonotum 
  with 
  irregular 
  puncturation, 
  consisting 
  of 
  sparse 
  

  

  larger 
  punctures 
  (which 
  are 
  themselves 
  not 
  at 
  all 
  coarse) 
  

   and 
  finer 
  interstitial 
  punctures; 
  wings 
  shining 
  fuscous. 
  

  

  O. 
  paranoias, 
  sp. 
  nov. 
  

  

  23 
  (22) 
  Mesonotum 
  with 
  very 
  dense 
  and 
  uniform 
  puncturation, 
  or 
  if 
  

  

  the 
  punctures 
  are 
  not 
  so 
  dense 
  they 
  are 
  deep 
  and 
  coarse. 
  

   Wings 
  to 
  a 
  large 
  extent 
  subhyaline. 
  

  

  24 
  (27) 
  Propodeum 
  rugose 
  or 
  rugosely 
  punctate. 
  

  

  25 
  (26) 
  Mesonotum 
  with 
  red 
  lines. 
  O. 
  homoeophanes. 
  

  

  26 
  (25) 
  Mesonotum 
  black. 
  O. 
  eucharis. 
  

  

  27 
  (24) 
  Propodeum 
  smooth, 
  with 
  some 
  shallow 
  punctures. 
  O. 
  oahuensis. 
  

  

  28 
  (11) 
  Thorax 
  and 
  abdomen 
  without 
  red 
  markings, 
  rarely 
  with 
  the 
  

  

  apical 
  margins 
  of 
  one 
  or 
  more 
  abdominal 
  segments 
  very 
  

   narrowly 
  and 
  indistinctly 
  testaceous. 
  

  

  29 
  (44) 
  One 
  or 
  :nore 
  entire 
  yellow 
  or 
  whitish 
  bands 
  on 
  the 
  abdomen 
  

  

  (thorax 
  also 
  often 
  with 
  yellow 
  markings). 
  

  

  30 
  (31) 
  Mandibles 
  in 
  both 
  sexes 
  entirely 
  or 
  almost 
  entirely 
  red 
  (male 
  

  

  with 
  the 
  clypeus 
  very 
  deeply 
  emarginate 
  at 
  the 
  apex, 
  that 
  

   of 
  the 
  female 
  distinctly 
  but 
  less 
  deeply). 
  O. 
  xerophilus. 
  

  

  31 
  (30) 
  Mandibles 
  at 
  most 
  red 
  or 
  piceous 
  on 
  the 
  apical 
  half; 
  generally 
  

  

  for 
  the 
  most 
  part 
  black. 
  

  

  