﻿302 
  Mr. 
  K. 
  C. 
  L. 
  Perkins 
  on 
  

  

  83. 
  (78) 
  Thorax 
  clothed 
  with 
  whitish, 
  or 
  with 
  white 
  and 
  black 
  

  

  hairs. 
  

  

  84. 
  (85) 
  Thorax 
  clothed 
  with 
  whitish 
  hairs 
  all 
  over. 
  . 
  . 
  . 
  vaga. 
  

  

  85. 
  (84) 
  Thorax 
  with 
  a 
  transverse 
  band 
  of 
  black 
  hairs. 
  . 
  cineraria. 
  

  

  86. 
  (77) 
  If 
  the 
  abdomen 
  is 
  glabrous 
  and 
  shining, 
  it 
  has 
  a 
  distinct 
  

  

  pattern 
  formed 
  by 
  narrow 
  apical 
  bands 
  or 
  lateral 
  streaks 
  

   of 
  dense 
  pale 
  hairs 
  on 
  the 
  intermediate 
  segments. 
  

  

  87. 
  (88) 
  Anterior 
  area 
  of 
  propodeum 
  well 
  exposed 
  on 
  its 
  dorsal 
  

  

  face 
  (owing 
  to 
  the 
  paucity 
  of 
  hairs 
  surrounding 
  it) 
  

   rather 
  strongly 
  and 
  evenly 
  rugose 
  all 
  over, 
  the 
  rugosities 
  

   dense 
  and 
  sinuous 
  or 
  reticulate 
  ; 
  2nd 
  segment 
  practically 
  

   glabrous 
  and 
  distinctly 
  rugulose 
  under 
  a 
  strong 
  lens 
  

   (excepting 
  generally 
  the 
  apical 
  impression) 
  and 
  Math 
  

   very 
  few 
  and 
  feeble 
  punctures 
  proxima. 
  

  

  88. 
  (87) 
  View 
  of 
  propodeal 
  area 
  often 
  interfered 
  with 
  by 
  dense 
  

  

  hairs 
  about 
  it; 
  in 
  many 
  the 
  first 
  two 
  segments 
  of 
  the 
  

   abdomen 
  are 
  conspicuously 
  hairy, 
  in 
  others 
  the 
  2nd 
  

   segment 
  is 
  not 
  distinctly 
  rugulose 
  or 
  the 
  sculpture 
  of 
  

   the 
  propodeal 
  area 
  is 
  quite 
  different. 
  

  

  89. 
  (95) 
  Basal 
  abdominal 
  segment 
  poUshed; 
  5th 
  antennal 
  joint 
  

  

  very 
  short 
  (viewed 
  from 
  in 
  front 
  or 
  beneath) 
  transverse 
  

   or 
  subtransverse. 
  

   (The 
  intermediate 
  abdominal 
  segments 
  always 
  have 
  narrow 
  

   apical 
  bands 
  or 
  lateral 
  streaks 
  of 
  white 
  or 
  almost 
  white 
  

   hairs, 
  forming 
  a 
  pattern.) 
  

  

  90. 
  (91) 
  First 
  two 
  segments 
  of 
  abdomen 
  with 
  a 
  general 
  (but 
  thin) 
  

  

  clothing 
  of 
  longish 
  pale 
  hairs 
  sericea. 
  

  

  (Second 
  segment 
  with 
  the 
  punctures 
  nearly 
  effaced, 
  these 
  

   being 
  remote 
  and 
  extremely 
  minute.) 
  

  

  91. 
  (90) 
  First 
  two 
  segments 
  without 
  a 
  general 
  clothing 
  of 
  long 
  

  

  hairs. 
  

  

  92. 
  (93) 
  Thorax 
  well 
  clothed 
  with 
  yellowish 
  brown 
  or 
  fulvescent 
  

  

  hairs; 
  the 
  view 
  of 
  the 
  anterior 
  area 
  of 
  the 
  propodeum 
  

  

  interfered 
  with 
  by 
  the 
  surrounding 
  hairs. 
  . 
  argentata. 
  

  

  (Floccus 
  large, 
  perfectly 
  developed 
  on 
  the 
  whole 
  trochanter). 
  

  

  93. 
  (92) 
  Thorax 
  sparsely 
  hairy 
  above, 
  the 
  dorsal 
  surface 
  of 
  the 
  

  

  propodeum 
  well 
  exposed, 
  bearing 
  only 
  scanty 
  pubes- 
  

   cence; 
  floccus 
  either 
  small 
  or 
  imperfectly 
  formed. 
  

  

  94. 
  (94a) 
  Scutellum 
  densely 
  punctate 
  round 
  the 
  margins 
  at 
  least 
  

  

  and 
  generally 
  shining 
  on 
  the 
  disc; 
  scopa 
  with 
  many 
  

   fuscous 
  hairs, 
  white 
  or 
  silvery 
  beneath. 
  . 
  . 
  coitana. 
  

   94a. 
  (94) 
  Scutellum 
  flatter, 
  rugulose 
  over 
  its 
  whole 
  surface 
  and 
  

   very 
  sparsely 
  punctured; 
  scopa 
  almost 
  white 
  through- 
  

   out 
  nitidiuscula. 
  

  

  