﻿NEW 
  SPECIES 
  OF 
  CHALCIDOIDEA 
  FROM 
  CEYLON. 
  

  

  327 
  

  

  Fore 
  wings, 
  two-and-a-half 
  times 
  as 
  long 
  as 
  broad. 
  Submarginal 
  cell 
  long 
  and 
  

   narrow 
  with 
  about 
  a 
  dozen 
  bristles. 
  Submarginal 
  vein 
  with 
  about 
  twelve 
  to 
  fourteen 
  

   bristles, 
  marginal, 
  and 
  post-marginal 
  combined, 
  with 
  about 
  the 
  same 
  number 
  of 
  

   bristles. 
  Radius 
  long, 
  club 
  distinct, 
  four 
  cells. 
  There 
  is, 
  besides 
  the 
  bare 
  basal 
  

   triangle, 
  an 
  unclothed 
  space 
  below 
  the 
  uprise 
  of 
  the 
  submarginal 
  to 
  the 
  marginal. 
  

   Submarginal 
  : 
  marginal 
  : 
  radius 
  : 
  post-marginal 
  — 
  10 
  : 
  4 
  : 
  3 
  : 
  6. 
  Length, 
  1*35 
  mm., 
  

   breadth, 
  "55 
  mm. 
  Hind 
  wings 
  : 
  length, 
  96 
  mm. 
  ; 
  breadth, 
  -16 
  mm. 
  

  

  Legs 
  : 
  all 
  coxae 
  black, 
  from 
  the 
  trochanter 
  to 
  the 
  second 
  tarsal 
  joint 
  in 
  all 
  the 
  legs 
  

   brownish 
  yellow, 
  the 
  last 
  tarsal 
  joints 
  becoming 
  progressively 
  browner. 
  

  

  Abdomen 
  : 
  short, 
  much 
  less 
  than 
  the 
  thorax, 
  triangular. 
  First 
  and 
  second 
  tergites 
  

   closely 
  associated, 
  occupying 
  about 
  one-half 
  of 
  the 
  visible 
  surface 
  ; 
  tergite 
  3 
  rather 
  

   long, 
  about 
  equal 
  to 
  2 
  ; 
  the 
  remainder 
  of 
  the 
  segments 
  are 
  telescoped. 
  

  

  Length, 
  13 
  mm. 
  ; 
  alar 
  expanse, 
  about 
  2 
  J 
  mm. 
  

  

  Fig. 
  1. 
  Trigonogastra 
  rugosa, 
  sp. 
  n. 
  ; 
  a, 
  antenna 
  of 
  ^ 
  ; 
  6, 
  antenna 
  of 
  $ 
  ; 
  c, 
  mandibles 
  of 
  $. 
  

  

  %.—Head, 
  from 
  in 
  front, 
  rounded, 
  oval, 
  wider 
  than 
  deep 
  (5 
  : 
  4), 
  frons 
  and 
  vertex 
  

   purplish, 
  rather 
  dull, 
  reticulate, 
  but 
  smooth, 
  the 
  pattern 
  not 
  being 
  raised. 
  Clypeal 
  

   edges 
  as 
  in 
  the 
  <J. 
  

  

  Antennae 
  (fig. 
  1, 
  b) 
  with 
  the 
  scape, 
  pedicel, 
  and 
  ring 
  joint, 
  flavescent, 
  the 
  pedicel 
  

   darker 
  ; 
  funicle 
  and 
  club 
  in 
  decided 
  contrast, 
  almost 
  black. 
  Scape 
  over 
  four-and-a- 
  

   half 
  times 
  as 
  long 
  as 
  broad 
  ; 
  pedicel 
  less 
  than 
  one-third 
  of 
  scape, 
  with 
  length 
  to 
  

   breadth 
  as 
  3:2. 
  The 
  first 
  four 
  funicular 
  joints 
  are 
  longer 
  than 
  broad, 
  the 
  fifth 
  

   quadrate, 
  and 
  the 
  sixth 
  broader 
  than 
  long. 
  They 
  are 
  in 
  the 
  ratio 
  10,10, 
  9,9, 
  8,8. 
  

   In 
  the 
  same 
  proportion 
  the 
  breadth 
  of 
  the 
  first 
  five 
  joints 
  is 
  8 
  and 
  that 
  of 
  the 
  sixth 
  

   a 
  little 
  over 
  9. 
  The 
  club 
  is 
  considerably 
  expanded, 
  with 
  joints 
  in 
  the 
  proportion, 
  

   5:4:5, 
  the 
  greatest 
  breadth 
  between 
  joints 
  one 
  and 
  two 
  being 
  7. 
  The 
  sensoria 
  

   are 
  numerous, 
  from 
  eight 
  on 
  the 
  first 
  funicular 
  joint, 
  to 
  twelve 
  on 
  the 
  second 
  club 
  

   joint. 
  There 
  is 
  besides 
  a 
  somewhat 
  large 
  terminal 
  sense-organ. 
  Length 
  of 
  antennae, 
  

   barely 
  *95 
  mm. 
  

  

  