﻿Hyinenoptera 
  Orientalis. 
  51 
  

  

  8. 
  Tachytes 
  nitidulus. 
  

  

  Crabro 
  nitidulus, 
  Fabricius, 
  Ent. 
  Syst. 
  II., 
  294, 
  6 
  ; 
  Syst. 
  

  

  Piez. 
  309, 
  7. 
  

   Tachytes 
  nitidulus, 
  Smith, 
  Cat. 
  Hyni. 
  Ins. 
  IV., 
  298 
  ; 
  

  

  Dahlbom, 
  Hyvi. 
  Ent. 
  I., 
  470. 
  

   Tachytes 
  trigonalis, 
  Saussure, 
  Hyni. 
  Novara 
  Reise, 
  72. 
  

   Common, 
  Barrackpore 
  {Rothney), 
  Java. 
  

  

  9. 
  Tachytes 
  tarsatus. 
  

  

  Tachytes 
  tarsatus, 
  Smith, 
  Cat. 
  Hym. 
  Ins. 
  296. 
  

  

  A 
  specimen 
  from 
  Barrackpore, 
  and 
  another 
  from 
  Tir- 
  

   hoot, 
  are 
  probably 
  referrable 
  to 
  this 
  species. 
  The 
  antennae 
  

   are 
  covered 
  with 
  a 
  pale 
  microscopic 
  down 
  ; 
  the 
  third 
  joint 
  

   is 
  a 
  little 
  longer 
  than 
  the 
  fourth, 
  and 
  three 
  times 
  the 
  length 
  

   of 
  the 
  second. 
  Eyes 
  at 
  the 
  top 
  separated 
  by 
  the 
  length 
  of 
  

   the 
  third 
  antennal 
  joint. 
  Vertex 
  and 
  front 
  almost 
  shining, 
  

   finely 
  rugosely 
  punctured. 
  Clypeus 
  punctured, 
  the 
  apex 
  

   depressed, 
  broadly 
  rounded, 
  entire. 
  Thorax 
  closely 
  punc- 
  

   tured 
  all 
  over 
  ; 
  the 
  median 
  segment 
  transversely 
  punctured, 
  

   the 
  apex 
  transversely 
  striated, 
  deeply 
  furrowed 
  down 
  the 
  

   centre. 
  Abdomen 
  aciculated, 
  punctured 
  closely 
  and 
  finely 
  

   towards 
  the 
  apex. 
  Pygidial 
  area 
  elongated, 
  sharply 
  pointed 
  

   at 
  the 
  apex. 
  Ventral 
  surface 
  shining, 
  sparsely 
  haired, 
  

   aciculated, 
  the 
  apical 
  segments 
  punctured 
  laterally. 
  Wings 
  

   yellowish 
  hyaline, 
  the 
  nervures 
  yellowish 
  testaceous 
  ; 
  the 
  

   second 
  cubital 
  cellule 
  one-fourth 
  longer 
  than 
  the 
  second 
  ; 
  

   the 
  first 
  recurrent 
  nervure 
  is 
  received 
  about 
  the 
  length 
  of 
  

   the 
  top 
  of 
  the 
  second 
  cubital 
  cellule 
  from 
  the 
  recurrent 
  

   nervure 
  ; 
  the 
  second 
  about 
  the 
  same 
  distance 
  beyond 
  it, 
  

   and 
  before 
  the 
  middle 
  of 
  the 
  cellule. 
  The 
  tarsi 
  are 
  only 
  

   red 
  at 
  the 
  apex. 
  

  

  T.fervidus, 
  Sm., 
  is 
  the 
  only 
  other 
  known 
  Indian 
  species 
  

   with 
  red 
  abdomen, 
  but 
  it 
  has 
  the 
  legs 
  reddish. 
  

  

  Hab. 
  Tirhoot 
  {Rothney\ 
  

  

  