﻿24 
  Mr. 
  Cameron 
  on 
  

  

  than 
  the 
  length 
  of 
  the 
  third 
  antcnnal 
  joint 
  and 
  by 
  fully 
  its 
  

   length 
  from 
  each 
  other 
  ; 
  eyes 
  a 
  little 
  converging 
  towards 
  

   the 
  clypeus. 
  Flagellum 
  rufous 
  beneath, 
  fuscous 
  above 
  ; 
  

   the 
  third 
  and 
  fourth 
  joints 
  sub-equal. 
  Clypeus 
  flat, 
  the 
  apex 
  

   a 
  little 
  projecting 
  and 
  armed 
  with 
  four 
  stout, 
  blunt 
  

   teeth. 
  Pronotum 
  rounded 
  at 
  the 
  sides 
  and 
  with 
  an 
  oblique 
  

   slope 
  in 
  front. 
  Mesopleural 
  furrow 
  indistinct. 
  Trigonal 
  

   area 
  smooth, 
  impunctate, 
  shining 
  ; 
  the 
  central 
  furrow- 
  

   narrow, 
  metapleura^ 
  at 
  base 
  strongly 
  striolated 
  ; 
  black 
  

   above 
  ; 
  the 
  rest 
  reddish, 
  the 
  extreme 
  apex 
  of 
  the 
  median 
  

   segment 
  being 
  also 
  reddish. 
  Petiole 
  rufous, 
  broader 
  than 
  

   long; 
  the 
  base 
  oblique. 
  Pygidial 
  area 
  reticulated 
  ; 
  narrowed 
  

   almost 
  to 
  a 
  point 
  at 
  the 
  base 
  ; 
  the 
  apex 
  transverse. 
  Incision 
  

   in 
  hypopygium 
  not 
  reaching 
  to 
  the 
  middle, 
  longer 
  than 
  

   broad, 
  rounded 
  at 
  the 
  base. 
  The 
  basal 
  ventral 
  segment 
  is 
  

   entirely 
  rufous 
  ; 
  the 
  others 
  are 
  broadly 
  rufous 
  in 
  the 
  middle. 
  

   Wings 
  almost 
  hyaline, 
  the 
  apex 
  infuscated 
  ; 
  the 
  second 
  

   cubital 
  cellule 
  arched, 
  receiving 
  the 
  petiole 
  almost 
  in 
  the 
  

   middle 
  ; 
  the 
  recurrent 
  nervure 
  received 
  a 
  little 
  before 
  the 
  

   middle 
  of 
  the 
  cellule. 
  Legs 
  rufous 
  in 
  front, 
  more 
  or 
  less 
  

   whitish-yellow 
  beneath 
  ; 
  the 
  hind 
  tibiae 
  fuscous 
  behind, 
  the 
  

   hind 
  tarsi 
  for 
  the 
  greater 
  part 
  fuscous. 
  Length 
  6 
  — 
  7 
  mm. 
  

  

  The 
  $1 
  is 
  smaller 
  and 
  similarly 
  colored, 
  but 
  with 
  the 
  

   yellow 
  marks 
  more 
  reduced 
  ; 
  the 
  cl}'peus 
  slightly 
  convex 
  ; 
  

   the 
  apex 
  transverse, 
  except 
  that 
  a 
  short, 
  not 
  very 
  distinct 
  

   tooth 
  projects 
  in 
  the 
  middle. 
  The 
  femora 
  are 
  broadly 
  

   lined 
  with 
  black 
  laterally 
  and 
  above, 
  especially 
  the 
  anterior 
  

   four. 
  

  

  A 
  well-marked 
  species. 
  

  

  >^CERCERIS 
  PENTADONTA. 
  (PI. 
  X., 
  f 
  13, 
  rt',^.) 
  

  

  Eyes 
  almost 
  parallel. 
  Ocelli 
  in 
  a 
  triangle, 
  the 
  hinder 
  

   separated 
  from 
  the 
  eyes 
  by 
  nearly 
  the 
  length 
  of 
  the 
  second 
  

   and 
  third 
  antennal 
  joints 
  united, 
  and 
  from 
  each 
  other 
  by 
  less 
  

   than 
  the 
  length 
  of 
  the 
  third. 
  Lobe 
  of 
  clypeus 
  obliquely 
  

  

  