﻿■252 
  james 
  waterston: 
  

  

  Tegulae 
  conspicuous. 
  Axillae 
  bare, 
  externally 
  rectangular. 
  Scutellum 
  with 
  a 
  

   median 
  impressed 
  triangular 
  area 
  ; 
  over 
  20 
  short 
  bristles 
  in 
  two 
  irregular 
  rows 
  

   before 
  the 
  suture 
  and 
  mainly 
  inside 
  the 
  triangle. 
  Metanotum 
  distinct, 
  ribbon-like 
  ; 
  

   the 
  posterior 
  margin 
  broadly 
  excised 
  in 
  the 
  middle, 
  with 
  4-6 
  minute 
  bristles 
  at 
  

   each 
  side. 
  Propodaeum 
  similar 
  to 
  the 
  metanotum, 
  but 
  about 
  twice 
  as 
  broad. 
  

   Spiracle 
  oval, 
  with 
  the 
  anterior 
  end 
  narrower 
  and 
  debouching 
  on 
  a 
  distinct 
  stalk 
  

   or 
  ridge, 
  so 
  that 
  the 
  whole 
  structure 
  is 
  pear-shaped 
  (fig. 
  2, 
  c) 
  ; 
  5 
  short 
  bristles- 
  

   behind 
  the 
  spiracle. 
  Mesophragma 
  long, 
  narrow 
  and 
  distinctly 
  entering 
  the 
  

   abdominal 
  cavity. 
  Prosternum 
  diamond 
  shaped, 
  slightly 
  truncate 
  anteriorly, 
  

   while 
  the 
  posterior 
  angle 
  is 
  bifid 
  and 
  free 
  from 
  the 
  thoracic 
  surface. 
  Mesosternal 
  

   area 
  anteriorly 
  concave, 
  with 
  a 
  strong 
  median 
  ridge, 
  and 
  posteriorly 
  with 
  six 
  

   minute 
  bristles 
  on 
  each 
  side. 
  

  

  Abdomen. 
  — 
  Petiole 
  very 
  broad 
  and 
  dark, 
  almost 
  coextensive 
  with 
  the 
  propodaeum. 
  

   The 
  abdomen 
  conic-ovate 
  and 
  compressed, 
  with 
  V-shaped 
  hollow 
  on 
  basal 
  segments. 
  

   First 
  tergite 
  almost 
  unchitinised 
  medianly, 
  dark 
  at 
  the 
  sides, 
  with 
  about 
  30 
  minute 
  

   bristles 
  on 
  each 
  side. 
  The 
  other 
  tergites 
  bare, 
  but 
  nearer 
  the 
  spiracle 
  are 
  one 
  or 
  two 
  

   minute 
  bristles. 
  Spiracle 
  (fig. 
  2, 
  e) 
  more 
  than 
  twice 
  as 
  long 
  as 
  broad, 
  with 
  a 
  sharp 
  

   narrow 
  indentation 
  on 
  the 
  lower 
  proximal 
  edge 
  at 
  one-fourth 
  from 
  base. 
  Sternites 
  

   with 
  the 
  chaetotaxy 
  obsolescent, 
  but 
  on 
  the 
  ploughshare-shaped 
  fifth 
  sternite 
  are 
  

   some 
  short 
  hairs 
  in 
  two 
  ventral 
  rows. 
  Stylet 
  narrow 
  ; 
  longer 
  on 
  the 
  upper 
  edge, 
  

   where 
  are 
  4 
  hairs, 
  and 
  2 
  others 
  at 
  the 
  apex. 
  The 
  ovipositor 
  is 
  from 
  three-fourths 
  to 
  

   as 
  long 
  as 
  the 
  abdomen 
  ; 
  the 
  piercing 
  part 
  slightly 
  longer 
  than 
  the 
  sheath, 
  which 
  

   is 
  black, 
  edged 
  with 
  scattered 
  bristles 
  ; 
  apex 
  of 
  saw 
  with 
  2 
  strong 
  teeth 
  (fig. 
  2, 
  i). 
  

  

  Wings 
  (fig. 
  2, 
  /, 
  g). 
  — 
  Forewing, 
  length, 
  2'5 
  mm. 
  ; 
  breadth, 
  1*1 
  mm. 
  Hyaline, 
  

   with 
  a 
  slight 
  cloud 
  below 
  the 
  upturning 
  of 
  the 
  submarginal 
  vein 
  and 
  in 
  a 
  fine 
  from 
  

   the 
  frenulum 
  to 
  the 
  base. 
  There 
  are 
  three 
  faint 
  venae 
  spuriae 
  from 
  the 
  end 
  of 
  

   the 
  radius 
  and 
  two 
  others 
  from 
  the 
  base 
  of 
  the 
  wing. 
  The 
  submarginal, 
  marginal, 
  

   postmarginal 
  and 
  radius 
  are 
  in 
  the 
  proportion 
  : 
  — 
  8 
  : 
  3 
  : 
  5 
  : 
  2. 
  Hindwing, 
  length, 
  

   1'35 
  mm. 
  ; 
  breadth, 
  "25 
  mm., 
  with 
  cilia 
  nearly 
  half 
  as 
  long 
  as 
  the 
  breadth 
  ; 
  

   remarkably 
  long 
  in 
  proportion 
  to 
  the 
  breadth, 
  with 
  rounded 
  apex. 
  Hooks 
  of 
  

   retinaculum 
  on 
  a 
  distinct 
  elevation. 
  Submarginal 
  vein 
  broad 
  basally, 
  but 
  tapering 
  

   of! 
  before 
  the 
  hooks 
  at 
  about 
  three-fourths. 
  Colour 
  clear, 
  slightly 
  clouded 
  at 
  the 
  

   end 
  of 
  the 
  single 
  vein. 
  

  

  Fore 
  legs. 
  — 
  Coxae 
  compressed, 
  2J 
  times 
  as 
  long 
  as 
  broad 
  ; 
  6-8 
  bristles 
  along 
  

   anterior 
  edge, 
  chiefly 
  on 
  anterior 
  two-thirds 
  ; 
  bare 
  externally, 
  save 
  on 
  the 
  upper 
  

   or 
  basal 
  posterior 
  third, 
  where 
  are 
  6-9 
  short 
  spines 
  ; 
  on 
  the 
  posterior 
  edge 
  and 
  

   along 
  the 
  adjacent 
  inner 
  aspect, 
  especially 
  on 
  the 
  basal 
  third, 
  are 
  numerous 
  soft 
  

   hairs 
  ; 
  on 
  the 
  inside 
  also 
  are 
  3 
  longer 
  apical 
  bristles. 
  Trochanter 
  short, 
  with 
  4-5 
  

   ventral 
  bristles. 
  Femur 
  one-third 
  longer 
  than 
  coxa, 
  narrow 
  on 
  basal 
  half, 
  then 
  

   expanded 
  ; 
  greatest 
  width 
  one-fourth 
  the 
  length 
  ; 
  on 
  the 
  outer 
  surface 
  are 
  about 
  

   a 
  dozen 
  bristles, 
  which 
  increase 
  in 
  length 
  towards 
  the 
  apex 
  ; 
  on 
  the 
  apical 
  ventral 
  

   region 
  are 
  numerous 
  scattered 
  hairs, 
  besides 
  a 
  few 
  on 
  the 
  anterior 
  edge 
  and 
  a 
  regular 
  

   row 
  (short) 
  on 
  or 
  near 
  the 
  ventral. 
  Tibia 
  one-third 
  of 
  the 
  femur 
  in 
  length 
  ; 
  

   2J 
  times 
  as 
  long 
  as 
  broad, 
  with 
  2 
  short 
  stout 
  outer 
  apical 
  spines, 
  one 
  dorsal, 
  the 
  

   other 
  ventral 
  ; 
  many 
  strong 
  scattered 
  bristles 
  on 
  the 
  outer 
  aspect 
  and 
  a 
  few 
  on 
  the 
  

   inner 
  ; 
  the 
  pre-apical 
  ventral 
  bristle 
  not 
  stoutly 
  developed. 
  Tarsus 
  nearly 
  thrice 
  

  

  