﻿312 
  Mr. 
  R. 
  C. 
  L. 
  Perkins 
  on 
  

  

  most 
  a 
  short 
  inconspicuous 
  pubescence, 
  sometimes 
  

   nearly 
  bare; 
  mesonotum 
  never 
  with 
  red 
  markings, 
  

   scape 
  of 
  antennae 
  pale 
  beneath, 
  the 
  flagellar 
  joints 
  dark 
  

   at 
  least 
  on 
  one 
  side. 
  

  

  14. 
  (15) 
  Scutellum 
  with 
  a 
  red 
  or 
  ferruginous 
  spot. 
  tormentillae. 
  

  

  (Cream-coloured 
  spots 
  of 
  2nd 
  abdominal 
  segment 
  widely 
  

   separated 
  ; 
  apical 
  margin 
  of 
  hind 
  tibiae 
  with 
  very 
  short 
  

   spines.) 
  

  

  15. 
  (14) 
  Scutellum 
  with 
  sulphur 
  yellow 
  spot 
  or 
  spots. 
  

  

  16. 
  (17) 
  Scutellum 
  with 
  a 
  single 
  transverse 
  yellow 
  spot. 
  rufipes. 
  

  

  (Antennae 
  short, 
  mesopleura 
  almost 
  always 
  with 
  a 
  con- 
  

   spicuous 
  yellow 
  marking, 
  apical 
  margin 
  of 
  hind 
  tibiae 
  

   with 
  short 
  pointed 
  spines; 
  abdomen 
  very 
  variable 
  in 
  

   colour, 
  bicoloured 
  or 
  tricoloured. 
  ) 
  

  

  17. 
  (16) 
  Scutellum 
  with 
  two 
  round 
  yellow 
  spots. 
  . 
  fiavopida,. 
  

  

  (Abdomen 
  black 
  with 
  yellow 
  markings, 
  the 
  first 
  segment 
  

   with 
  a 
  yellow 
  band 
  nearly 
  always 
  slightly 
  interrupted 
  

   in 
  the 
  middle, 
  second 
  with 
  wedge-shaped 
  spots; 
  apical 
  

   margin 
  of 
  hind 
  tibiae 
  without 
  spines.) 
  

  

  18. 
  (13) 
  Propodeum 
  outside 
  the 
  area 
  and 
  the 
  mesopleura, 
  or 
  one 
  

  

  of 
  those 
  parts 
  usually 
  with 
  more 
  or 
  less 
  long 
  pubescence 
  

   or 
  hairs 
  ; 
  mesonotum 
  in 
  many 
  sj^ecies 
  with 
  red 
  markings, 
  

   scape 
  in 
  some 
  black 
  beneath, 
  flagellum 
  of 
  antennae 
  

   sometimes 
  entirely 
  pale. 
  

  

  19. 
  (20) 
  Face 
  strongly 
  produced 
  anteriorly, 
  so 
  as 
  to 
  be 
  subrostrate. 
  

  

  Q)-fasciata. 
  

   (A 
  large, 
  robust, 
  bicoloured 
  sj^ecies, 
  1st, 
  2nd, 
  and 
  3rd 
  

   abdominal 
  segments 
  with 
  elongate 
  spots 
  on 
  each 
  side, 
  

   the 
  pronotum 
  black 
  above; 
  apical 
  margin 
  of 
  hind 
  

   tibiae 
  v/ith 
  a 
  dense 
  fringe 
  of 
  hairs, 
  with 
  the 
  spines 
  

   not 
  easily 
  distinguishable 
  amongst 
  these.) 
  

  

  20. 
  (19) 
  Face 
  normal. 
  

  

  21. 
  (24) 
  Hind 
  tibiae 
  with 
  the 
  apical 
  margin 
  pecuharly 
  armed, 
  

  

  having 
  the 
  usual 
  apical 
  process 
  or 
  projection 
  and 
  out- 
  

   wardly 
  from 
  this 
  with 
  two 
  or 
  three 
  short 
  stout 
  spines 
  

   (often 
  so 
  closely 
  apposed 
  as 
  to 
  appear 
  like 
  a 
  single 
  

   projection) 
  inclined 
  or 
  bent 
  towards 
  the 
  apical 
  process. 
  

  

  22. 
  (23) 
  Abdomen 
  tricoloured, 
  the 
  scutellum 
  with 
  a 
  median 
  yellow 
  

  

  spot. 
  fucata. 
  

  

  23. 
  (22) 
  Abdomen 
  bicoloured, 
  the 
  scutellum 
  with 
  a 
  pair 
  of 
  spots, 
  

  

  rarely 
  wanting 
  goodeniana. 
  

  

  24. 
  (21) 
  Armature 
  of 
  hind 
  tibiae 
  otherwise. 
  

  

  25. 
  (56) 
  Labrum 
  pale, 
  at 
  least 
  to 
  a 
  considerable 
  extent 
  ; 
  species 
  not 
  

  

  excessively 
  minute 
  and 
  without 
  flavous 
  abdominal 
  spots. 
  

  

  