﻿20 
  Mr. 
  Cameron 
  on 
  

  

  except 
  the 
  apical 
  half 
  of 
  the 
  posterior 
  femora 
  and 
  tibise. 
  

   The 
  scape 
  is 
  yellow; 
  the 
  flagellum 
  fulvous 
  beneath; 
  the 
  

   third 
  and 
  fourth 
  joints 
  are 
  sub-equal. 
  

  

  The 
  $ 
  is 
  similarly 
  coloured, 
  except 
  that 
  the 
  mesopleurse 
  

   want 
  the 
  yellow 
  mark 
  and 
  the 
  scutellum 
  is 
  entirely 
  yellow. 
  

   Length 
  7 
  — 
  10 
  mm. 
  

  

  XlERCERIS 
  Wroughtoni, 
  sp. 
  uov. 
  (PI. 
  X. 
  f. 
  9, 
  a, 
  b). 
  

  

  Black, 
  shining, 
  thorax, 
  and 
  head 
  punctured, 
  the 
  abdomen 
  

   impunctate, 
  smooth 
  ; 
  the 
  clypeus, 
  the 
  cheeks 
  to 
  above 
  the 
  

   base 
  of 
  the 
  antennce, 
  the 
  antennal 
  ridge, 
  the 
  scape 
  beneath, 
  

   a 
  large 
  broad 
  line 
  behind 
  the 
  eyes, 
  a 
  line 
  on 
  the 
  pronotum, 
  

   scutellum, 
  metanotum, 
  two 
  small 
  marks 
  on 
  the 
  middle 
  of 
  

   the 
  median 
  segment, 
  the 
  petiole, 
  except 
  a 
  broad 
  stripe 
  down 
  

   the 
  centre, 
  the 
  base 
  of 
  the 
  second 
  and 
  third 
  segments 
  all 
  

   round, 
  the 
  edge 
  of 
  the 
  fourth, 
  and 
  a 
  large 
  mark 
  in 
  its 
  centre, 
  

   a 
  similar 
  mark 
  on 
  the 
  fifth 
  ; 
  and 
  the 
  basal 
  three 
  ventral 
  

   segments, 
  for 
  the 
  greater 
  part, 
  clear 
  yellow 
  ; 
  the 
  flagellum 
  

   beneath 
  and 
  a 
  large 
  mark 
  on 
  either 
  side 
  of 
  the 
  median 
  

   segment 
  rufo-fulvous; 
  legs 
  fulvous, 
  the 
  anterior 
  four 
  in 
  front 
  

   and 
  the 
  hinder 
  femora 
  in 
  part, 
  pale 
  yellow. 
  Wings 
  fuscous, 
  

   the 
  apex 
  much 
  darker, 
  the 
  stigma 
  fulvous. 
  Antennae 
  

   with 
  the 
  third 
  joint 
  about 
  one 
  quarter 
  longer 
  than 
  the 
  

   fourth. 
  Cl}'peus 
  flat, 
  the 
  apex 
  black, 
  roundly 
  and 
  broadly 
  

   incised 
  ; 
  its 
  sides 
  and 
  the 
  cheeks 
  bearing 
  a 
  silvery 
  pube- 
  

   scence. 
  Ocelli 
  forming 
  almost 
  a 
  triangle, 
  the 
  posterior 
  

   separated 
  from 
  the 
  eyes 
  by 
  more 
  than 
  the 
  length 
  of 
  the 
  

   third 
  antennal 
  joint 
  ; 
  and 
  by 
  about 
  its 
  length 
  from 
  each 
  

   other. 
  The 
  pubescence 
  on 
  the 
  head 
  is 
  longish 
  and 
  pale 
  ; 
  

   the 
  punctuation 
  moderately 
  strong, 
  and 
  all 
  the 
  punctures 
  

   deeply 
  separated. 
  Thorax 
  moderately 
  strongly 
  punctured, 
  

   covered 
  with 
  a 
  pale 
  pubescence 
  ; 
  the 
  pronotum 
  above 
  saddle- 
  

   shaped 
  ; 
  the 
  transverse 
  furrow 
  in 
  the 
  mesopleura 
  wide, 
  

   deep 
  and 
  complete 
  ; 
  scutellum 
  sparsely 
  punctured 
  ; 
  trigonal 
  

   area 
  smooth, 
  impunctate, 
  furrowed 
  down 
  the 
  middle 
  ; 
  meta- 
  

  

  