﻿44 
  JAMES 
  WATERSTOX. 
  

  

  ' 
  This 
  species 
  is 
  markedly 
  different 
  from 
  Encyrtus 
  triozae, 
  Andre\ 
  bred 
  by 
  M. 
  

   Ed. 
  Andre 
  from 
  Trioza 
  centranthi, 
  Vallot, 
  and 
  described 
  in 
  Ann. 
  Soc. 
  Ent. 
  France, 
  

   1878, 
  p. 
  84 
  ; 
  but 
  belongs 
  to 
  the 
  same 
  group 
  of 
  the 
  genus 
  Encyrtus 
  as 
  E. 
  strobili 
  (L.), 
  

   to 
  which 
  it 
  is 
  quite 
  closely 
  related. 
  E. 
  strobili, 
  however, 
  preys 
  upon 
  certain 
  gall- 
  

   making 
  Cecidomyids, 
  as 
  Cec. 
  rosaria 
  and 
  C. 
  salicina. 
  

  

  " 
  A 
  single 
  Encyrtus 
  issued 
  from 
  a 
  single 
  Trioza 
  in 
  every 
  case, 
  making 
  its 
  way 
  

   through 
  the 
  dorsum 
  of 
  the 
  abdomen 
  of 
  its 
  host. 
  [Dept. 
  Agr. 
  and 
  C.V.R. 
  Coll.]." 
  

  

  Type 
  in 
  the 
  United 
  States 
  National 
  Museum. 
  

  

  Psyllaephagus 
  metallicus, 
  Gir. 
  

  

  Aratus 
  metallicus, 
  Girault. 
  (I 
  cannot 
  trace 
  this 
  species 
  under 
  Aratus.) 
  

  

  Psyllaephagus 
  metallicus. 
  Girault, 
  Mem. 
  Queens 
  Mus.. 
  iv, 
  p. 
  119, 
  4.vi.l915. 
  

  

  # 
  Australia 
  : 
  Oueensland, 
  Brisbane: 
  bred 
  out 
  of 
  Eucalyptus, 
  5.viii.l911, 
  

   gall 
  no. 
  15 
  (H. 
  Hacker). 
  

  

  Type 
  $ 
  in 
  the 
  Brisbane 
  Museum. 
  

  

  Psyllaephagus 
  femoralis, 
  Bor. 
  

  

  P.femoralis, 
  Borelli, 
  Bull. 
  Soc. 
  Entom. 
  Ital., 
  li, 
  p. 
  32, 
  1919 
  (published 
  25.vii.1920). 
  

  

  Italy: 
  near 
  Bologna; 
  from 
  galls 
  of 
  Trioza 
  alacris, 
  Flor., 
  on 
  Laurus 
  nobilis, 
  L. 
  

  

  P. 
  femoralis 
  oviposits 
  in 
  both 
  larvae 
  and 
  pupae 
  of 
  its 
  host 
  and 
  is 
  an 
  internal 
  

   feeder. 
  

  

  Psyllaephagus 
  cellulatus, 
  sp. 
  nov. 
  

  

  cj, 
  $. 
  A 
  metallic 
  green 
  species 
  with 
  pale 
  anterior 
  legs 
  and 
  a 
  conspicuous 
  incom- 
  

   plete 
  sub-basal 
  band 
  on 
  the 
  hind 
  tibiae. 
  

  

  $. 
  Vertex 
  of 
  head 
  and 
  thoracic 
  notum 
  dark 
  metallic 
  green, 
  with 
  aeneous 
  reflections. 
  

   Frons 
  of 
  a 
  rich 
  dull 
  metallic 
  violet, 
  with 
  the 
  dark 
  green 
  colour 
  reappearing 
  between 
  

   the 
  toruli 
  and 
  continuing 
  towards 
  the 
  mouth-edge, 
  which 
  is 
  aeneous 
  green. 
  Sterno- 
  

   pleurae 
  more 
  aeneous 
  than 
  the 
  notal 
  surface. 
  Tegulae 
  pale, 
  infuscated 
  on 
  apical 
  

   third. 
  Abdomen 
  purplish 
  black 
  and 
  at 
  most 
  submetallic. 
  Wings 
  hyaline. 
  Mentum 
  

   and 
  stipes 
  blackish-brown. 
  All 
  the 
  palpi, 
  galea, 
  lacinia 
  and 
  ligula 
  conspicuously 
  

   pale. 
  Antenna, 
  bulla, 
  scape 
  (except 
  narrowly 
  at 
  apex) 
  and 
  pedicel 
  dorsally, 
  blackish 
  

   brown 
  ; 
  apex 
  of 
  scape 
  and 
  sometimes 
  pedicel 
  ventrally 
  towards 
  its 
  apex, 
  a 
  little 
  

   paler 
  ; 
  the 
  remainder 
  of 
  the 
  antenna 
  pale, 
  the 
  funicular 
  segments 
  more 
  or 
  less 
  

   faintly 
  infuscated 
  but 
  always 
  sharply 
  contrasted 
  with 
  the 
  scape. 
  Legs 
  with 
  all 
  

   the 
  coxae 
  like 
  the 
  thorax 
  and 
  submetallic 
  ; 
  fore 
  and 
  mid 
  legs 
  entirely 
  pale, 
  the 
  fore 
  

   femora 
  at 
  most 
  faintly 
  infuscated 
  on 
  proximal 
  half 
  ; 
  hind 
  trochanters 
  and 
  extreme 
  

   base 
  of 
  femora 
  pale 
  : 
  thereafter 
  the 
  femora 
  black 
  or 
  blackish-brown, 
  with 
  the 
  apical 
  

   sixth 
  pale; 
  base 
  of 
  tibia 
  pale 
  to 
  about 
  the 
  length 
  of 
  the 
  corresponding 
  apical 
  

   area 
  of 
  the 
  femora, 
  followed 
  by 
  a 
  broad 
  dark 
  spot 
  (most 
  distinct 
  dorsally), 
  which 
  

   forms 
  a 
  nearly 
  complete 
  band 
  extending 
  to 
  over 
  one-third 
  from 
  the 
  base 
  ; 
  remainder 
  

   of 
  tibia 
  and 
  tarsus 
  pale. 
  (In 
  none 
  of 
  the 
  tarsi 
  is 
  the 
  last 
  joint 
  very 
  appreciably 
  

   darker 
  than 
  the 
  others, 
  but 
  the 
  specimens 
  have 
  all 
  been 
  in 
  spirit.) 
  

  

  cj. 
  The 
  green 
  of 
  head 
  and 
  thorax 
  is 
  more 
  emerald. 
  Frons 
  concolorous 
  with 
  

   vertex. 
  Bulla 
  and 
  scape 
  very 
  pale, 
  paler 
  than 
  funicle. 
  only 
  the 
  pedicel 
  is 
  definitely 
  

   blackish-brown 
  on 
  the 
  proximal 
  two-thirds, 
  its 
  apex 
  (transversely) 
  being 
  pale. 
  In 
  

   the 
  hind 
  femur 
  the 
  apical 
  third 
  is 
  pale, 
  and 
  the 
  sub-basal 
  band 
  is 
  less 
  extensi\e. 
  

   being 
  reduced 
  to 
  a 
  spot 
  on 
  the 
  dorsal 
  edge. 
  

  

  $. 
  Head 
  nearly 
  one-fourth 
  wider 
  than 
  deep. 
  Toruli 
  (2:1) 
  mainly 
  below 
  the 
  

   base 
  line 
  of 
  the 
  eyes, 
  relatively 
  as 
  far 
  apart 
  as 
  in 
  the 
  £. 
  but 
  only 
  about 
  two-thirds 
  

   their 
  length 
  from 
  the 
  mouth-edge. 
  Antenna 
  (tig. 
  1. 
  e), 
  length 
  0-6 
  mm, 
  ; 
  12 
  (11)- 
  

   jointed 
  ; 
  scape 
  (9 
  : 
  2) 
  thrice 
  as 
  long 
  as 
  and 
  of 
  the 
  same 
  breadth 
  as 
  the 
  pedicel 
  

  

  