﻿of 
  undescribcd 
  Chinese 
  Hymenoptera. 
  39 
  

  

  which 
  is 
  divided 
  by 
  a 
  central 
  cliannel, 
  has 
  on 
  each 
  side 
  an 
  indis- 
  

   tinct 
  ferruginous 
  spot, 
  the 
  tegulee 
  have 
  a 
  stain 
  of 
  the 
  same 
  colour 
  

   outwardly, 
  and 
  the 
  wings 
  rufo-fuscous, 
  with 
  a 
  darker 
  colouring 
  

   towards 
  their 
  base 
  ; 
  the 
  legs 
  are 
  rufo-piceous 
  at 
  their 
  joints, 
  and 
  

   also 
  the 
  front 
  of 
  the 
  anterior 
  tibiae. 
  The 
  basal 
  and 
  apical 
  margins 
  

   of 
  the 
  first 
  segment 
  of 
  the 
  abdomen 
  have 
  a 
  broad 
  continuous 
  

   yellow 
  band 
  ; 
  a 
  similar 
  band 
  on 
  the 
  apical 
  margin 
  of 
  the 
  second 
  

   segment, 
  and 
  another 
  towards 
  its 
  base 
  which 
  becomes 
  pointed 
  at 
  

   the 
  sides 
  of 
  the 
  abdomen 
  ; 
  the 
  third, 
  fourth 
  and 
  fifth 
  segments 
  

   have 
  yellow 
  bands 
  on 
  their 
  apical 
  margins, 
  and 
  the 
  sixth 
  is 
  entirely 
  

   yellow; 
  beneath, 
  the 
  second 
  and 
  following 
  segments 
  are 
  margined 
  

   with 
  yellow, 
  the 
  bands 
  increasing 
  laterally 
  in 
  width 
  ; 
  above, 
  the 
  

   abdomen 
  is 
  beautifully 
  aciculated, 
  and 
  the 
  entire 
  insect 
  has 
  a 
  

   changeable 
  sericeous 
  reflection. 
  

  

  Length 
  1 
  in. 
  9 
  lines. 
  

  

  Worker. 
  — 
  Differs 
  from 
  the 
  female 
  in 
  the 
  following 
  particulars 
  : 
  

   a 
  ferruginous 
  spot 
  on 
  the 
  shoulders, 
  the 
  post-scutellum 
  tinged 
  

   with 
  the 
  same 
  colour. 
  

  

  Length 
  1 
  in. 
  3 
  lin. 
  

  

  Hab. 
  Tein-tung, 
  near 
  Ning-po-foo, 
  amongst 
  the 
  mountains. 
  

  

  This 
  is 
  one 
  of 
  the 
  finest 
  species 
  of 
  the 
  genus 
  yet 
  discovered. 
  

   Mr. 
  Fortune 
  informed 
  me 
  that 
  this 
  insect 
  constructs 
  large 
  globular 
  

   nests 
  in 
  the 
  topmost 
  branches 
  of 
  trees, 
  and 
  is 
  very 
  abundant. 
  

  

  Vespa 
  ducalis. 
  

  

  Female. 
  — 
  Ochraceous 
  ; 
  the 
  head 
  large, 
  the 
  cheeks 
  broadly 
  

   dilated, 
  the 
  clypeus 
  and 
  mandibles 
  rugose, 
  the 
  teeth 
  of 
  the 
  latter, 
  

   the 
  region 
  of 
  the 
  stemmata, 
  a 
  line 
  on 
  the 
  scape 
  behind, 
  and 
  a 
  deep 
  

   depression 
  above 
  their 
  base, 
  black 
  ; 
  the 
  prothorax, 
  mesothorax, 
  

   and 
  anterior 
  margin 
  of 
  the 
  scutellum, 
  black 
  ; 
  the 
  tegulae 
  black, 
  

   their 
  outer 
  margins 
  yellow; 
  wings 
  slightly 
  fuscous 
  near 
  their 
  

   base 
  ; 
  the 
  metathorax 
  below 
  the 
  post-scutellum, 
  the 
  thorax 
  be- 
  

   neath, 
  and 
  the 
  femora, 
  black 
  ; 
  the 
  apex 
  of 
  the 
  coxse, 
  trochanters 
  

   and 
  femora, 
  the 
  tibiae 
  and 
  tarsi, 
  of 
  a 
  reddish 
  yellow; 
  the 
  first 
  and 
  

   second 
  segments 
  of 
  the 
  abdomen 
  entirely 
  ochraceous, 
  having 
  above 
  

   a 
  central, 
  transverse, 
  black 
  band, 
  that 
  on 
  the 
  second 
  segment 
  more 
  

   or 
  less 
  interrupted, 
  the 
  rest 
  of 
  the 
  segments 
  totally 
  black. 
  

  

  Length 
  1 
  inch 
  6 
  lines. 
  

  

  Worker. 
  — 
  Head 
  as 
  in 
  the 
  female, 
  but 
  of 
  a 
  redder 
  hue 
  ; 
  the 
  an- 
  

   terior 
  portion 
  of 
  the 
  prothorax, 
  the 
  outer 
  margins 
  of 
  the 
  tegulag, 
  

   the 
  scutellum 
  and 
  post-scutellum, 
  tibiae 
  and 
  tarsi, 
  of 
  a 
  reddish 
  

  

  