﻿284 
  Mr. 
  R. 
  C. 
  L. 
  Perkins 
  on 
  

  

  23. 
  (22) 
  Hind 
  tarsi 
  and 
  usually 
  the 
  apices 
  of 
  the 
  tibiae 
  (except 
  in 
  

  

  some 
  stylopised 
  examples) 
  conspicuously 
  red 
  or 
  yellow. 
  

  

  tibialis. 
  

  

  24. 
  (17) 
  Anterior 
  area 
  of 
  propodeum 
  not 
  bounded 
  posteriorly 
  by 
  

  

  a 
  raised 
  line 
  or 
  rugosity, 
  or 
  if 
  conspicuously 
  rugose 
  all 
  

   over, 
  the 
  3rd 
  antennal 
  joint 
  is 
  at 
  least 
  slightly 
  longer 
  

   than 
  the 
  4th. 
  

  

  25. 
  (36) 
  Third 
  joint 
  of 
  antennae 
  extraordinarily 
  short, 
  seen 
  from 
  

  

  in 
  front 
  only 
  from 
  | 
  to 
  | 
  the 
  length 
  of 
  the 
  strongly 
  elon- 
  

   gated 
  4tli, 
  and 
  not 
  or 
  hardly 
  longer 
  than 
  its 
  own 
  apical 
  

   margin; 
  flagellum 
  shining 
  beneath. 
  

  

  26. 
  (35) 
  Mandibles 
  ordinary, 
  having 
  a 
  more 
  or 
  less 
  distinct 
  tooth 
  

  

  before 
  the 
  apex. 
  

  

  27. 
  (34) 
  Cheeks 
  usually 
  forming 
  merely 
  a 
  small 
  prominent 
  angle 
  

  

  at 
  the 
  base 
  of 
  the 
  mandibles, 
  rarely 
  with 
  a 
  distinct 
  

   elongate 
  spine 
  ; 
  if 
  the 
  latter 
  is 
  present 
  the 
  face 
  beneath 
  

   the 
  antennae 
  is 
  largely 
  clothed 
  with 
  pale 
  hairs. 
  

  

  28. 
  (31) 
  Abdomen 
  without 
  evident 
  red 
  or 
  yellowish 
  markings 
  above 
  

  

  or 
  beneath, 
  at 
  most 
  the 
  apices 
  of 
  the 
  segments 
  sub- 
  

   testaceous. 
  

  

  29. 
  (30) 
  Face 
  beneath 
  the 
  antennae 
  with 
  the 
  hairs 
  brown 
  and 
  black 
  

  

  or 
  often 
  nearly 
  all 
  brown 
  (fading 
  to 
  pale 
  ochreous). 
  

  

  trimmerana 
  Auct. 
  

  

  30. 
  (29) 
  Pace 
  beneath 
  the 
  antennae 
  with 
  black 
  hairs. 
  

  

  trimmerana 
  var. 
  scotica. 
  

  

  31. 
  (28) 
  Abdomen 
  either 
  above 
  or 
  beneath 
  or 
  on 
  both 
  surfaces 
  with 
  

  

  evident 
  red 
  or 
  yellowish 
  markings, 
  at 
  least 
  on 
  some 
  of 
  

   the 
  basal 
  segments. 
  

  

  32. 
  (33) 
  Apices 
  of 
  hind 
  tibiae 
  more 
  or 
  less 
  pale. 
  

  

  spinigera 
  var. 
  anglica 
  {= 
  trimmerana 
  K.) 
  

  

  33. 
  (32) 
  Apices 
  of 
  hind 
  tibiae 
  not 
  pale, 
  but 
  concolorous. 
  . 
  rosae. 
  

  

  34. 
  (27) 
  Cheeks 
  with 
  an 
  elongate 
  spine 
  at 
  the 
  mandibular 
  articula- 
  

  

  tion 
  and 
  the 
  face 
  densely 
  black-haired, 
  sometimes 
  with 
  

   a 
  few 
  greyish 
  ones 
  intermixed. 
  . 
  . 
  rosae 
  var. 
  ezimia. 
  

  

  35. 
  (26) 
  Mandibles 
  simple, 
  without 
  a 
  distinct 
  tooth 
  before 
  the 
  

  

  apex. 
  spinigera 
  K. 
  

  

  36. 
  (25) 
  Third 
  joint 
  of 
  antennae 
  not 
  extremely 
  short 
  as 
  in 
  the 
  

  

  above 
  section. 
  

  

  37. 
  (40) 
  Mandibles 
  simple, 
  no 
  tooth 
  on 
  the 
  upper 
  margin 
  towards 
  

  

  the 
  apex. 
  

  

  38. 
  (39) 
  Third 
  antennal 
  joint 
  shorter 
  than 
  the 
  4th, 
  hind 
  tibiae 
  yellow. 
  

  

  ferox. 
  

  

  39. 
  (38) 
  Third 
  antemial 
  joint 
  not 
  shorter 
  than 
  the 
  4th, 
  hind 
  tibiae 
  

  

  at 
  least 
  for 
  the 
  most 
  part 
  dark. 
  . 
  . 
  . 
  bucephala. 
  

  

  