﻿Hyuienoptera 
  Orientalis. 
  53 
  

  

  TACHYSPHEX. 
  

  

  Tachysphex, 
  Kohl, 
  Ber. 
  Ent. 
  Zeit. 
  XXVII., 
  166; 
  Verh. 
  

   z.-b. 
  Ges. 
  IVien, 
  1884, 
  347. 
  =Tac/iyUs 
  Auct. 
  

  

  ""^ 
  TACHYSPHEX 
  ERYTHROGASTER, 
  Sp. 
  nov. 
  

  

  Niger 
  ; 
  capite 
  et 
  tJiorace 
  dense 
  argenteo 
  pilosis, 
  basi 
  anten- 
  

   ^ariiin, 
  clypeo, 
  pedibiis 
  abdomineqite, 
  riifis, 
  alis 
  dare 
  hyalinis, 
  

   tegulis 
  pallide 
  nifis, 
  nervis 
  fiiscis. 
  ?. 
  Long. 
  13 
  mm. 
  

  

  Antennae 
  short, 
  stout 
  ; 
  the 
  third 
  joint 
  somewhat 
  shorter 
  

   than 
  the 
  fourth. 
  Head 
  finely 
  rugose, 
  but 
  the 
  rugosity 
  hid, 
  

   except 
  in 
  the 
  centre 
  of 
  vertex, 
  by 
  the 
  dense 
  pubescence 
  ; 
  

   ocellar 
  region 
  raised, 
  broadly, 
  but 
  not 
  deeply, 
  furrowed 
  in 
  the 
  

   centre 
  ; 
  eyes 
  at 
  the 
  top 
  separated 
  by 
  the 
  length 
  of 
  the 
  third 
  

   and 
  fourth 
  antenna! 
  joints 
  united. 
  Clypeus 
  with 
  an 
  oblique 
  

   slope 
  at 
  the 
  apex, 
  which 
  is 
  truncated 
  ; 
  labrum 
  with 
  an 
  

   incision 
  in 
  the 
  middle 
  ; 
  mandibles 
  red, 
  black 
  at 
  the 
  apex 
  ; 
  

   the 
  base 
  covered 
  with 
  silvery 
  pubescence. 
  Mesonotum 
  and 
  

   scutellum 
  punctured 
  ; 
  the 
  sculpture 
  of 
  the 
  rest 
  of 
  thorax 
  

   hid 
  by 
  the 
  dense 
  covering 
  of 
  hair. 
  The 
  apex 
  of 
  metanotum 
  

   furrowed, 
  perpendicular 
  ; 
  abdomen 
  longer 
  than 
  the 
  head 
  

   and 
  thorax 
  united, 
  very 
  finely 
  aciculated 
  ; 
  the 
  segments 
  at 
  

   the 
  apices 
  bearing 
  a 
  band 
  of 
  silky 
  pile 
  ; 
  pygidial 
  area 
  im- 
  

   punctate, 
  narrowing 
  to 
  a 
  point 
  from 
  the 
  middle 
  to 
  the 
  apex 
  ; 
  

   the 
  sides 
  not 
  very 
  distinctly 
  margined. 
  The 
  second 
  cubital 
  

   cellule 
  less 
  than 
  one-fourth 
  shorter 
  than 
  the 
  third, 
  and 
  of 
  

   the 
  length 
  of 
  the 
  space 
  bounded 
  by 
  the 
  recurrent 
  nervures. 
  

   Legs 
  sparsely 
  pilose, 
  the 
  spines 
  white, 
  the 
  spurs 
  red, 
  the 
  

   claws 
  blackish. 
  

  

  Hab. 
  Poona 
  ( 
  Wroughton). 
  

  

  2. 
  TACHYSPHEX 
  ARGYREA. 
  

  

  Larrada 
  Argvrea, 
  Smith, 
  Cat. 
  Hym. 
  Ins. 
  IV. 
  

   The 
  eyes 
  at 
  the 
  top 
  are 
  separated 
  by 
  fully 
  half 
  the 
  

   length 
  of 
  the 
  third 
  antennal 
  joint. 
  The 
  part 
  in 
  which 
  are 
  

  

  