﻿186 
  JAMES 
  WATERSTON. 
  

  

  Mid 
  legs 
  : 
  length, 
  0-84 
  mm. 
  ; 
  coxa 
  (6 
  : 
  5) 
  with 
  3 
  bristles 
  posteriori}' 
  on 
  apex. 
  

   Trochanter 
  slender, 
  as 
  long 
  as 
  coxa 
  or 
  three-sevenths 
  of 
  the 
  femur 
  (5:1). 
  The 
  latter 
  

   much 
  shorter 
  (2 
  : 
  3) 
  than 
  the 
  tibia 
  (12 
  : 
  1), 
  with 
  about 
  10 
  short 
  bristles 
  along 
  the 
  

   dorsal 
  edge, 
  7-8 
  and 
  an 
  apical 
  spine 
  in 
  a 
  subdorsal 
  posterior 
  row 
  and 
  5 
  in 
  an 
  antero- 
  

   median 
  row 
  ; 
  the 
  apical 
  ventral 
  bristle 
  is 
  rather 
  weak. 
  The 
  tibia 
  has 
  7-8 
  widely 
  

   spaced 
  spines 
  dorsally, 
  2 
  at 
  the 
  base 
  being 
  stronger 
  ; 
  8-9, 
  minute, 
  anteriorly 
  (one 
  

   row) 
  and 
  about 
  18 
  in 
  all, 
  stronger, 
  posteriorly, 
  arranged 
  in 
  two 
  rows 
  from 
  the 
  middle 
  

   to 
  apex 
  but 
  in 
  a 
  single 
  row 
  on 
  basal 
  half 
  ; 
  7-8 
  ventral 
  spines 
  on 
  apical 
  half, 
  apical 
  

   spine 
  only 
  one-third 
  of 
  the 
  1st 
  tarsal 
  joint. 
  The 
  tarsal 
  joints 
  bear 
  on 
  the 
  plantar 
  

   surface 
  a 
  double 
  row 
  of 
  thin 
  hyaline 
  spines, 
  and 
  there 
  are 
  besides 
  the 
  following 
  lateral 
  

   spines, 
  one 
  apical 
  on 
  1st 
  and 
  2nd 
  joints, 
  and 
  one 
  beyond 
  half 
  on 
  the 
  first 
  joint. 
  

  

  Hind 
  legs: 
  length, 
  0-95 
  mm."; 
  coxa 
  (2:1) 
  pear-shaped, 
  as 
  long 
  as 
  the 
  femur 
  

   (11 
  : 
  5), 
  externally 
  bare, 
  and 
  with 
  2 
  spinose 
  bristles 
  at 
  apex 
  and 
  2 
  more 
  (minute) 
  

   near 
  base 
  on 
  inner 
  surface. 
  The 
  femur 
  bears 
  a 
  dorsal 
  row 
  of 
  bristles 
  (10), 
  and 
  on 
  upper 
  

   anterior 
  surface 
  two 
  more 
  rows 
  of 
  6-7 
  each. 
  The 
  last 
  unit 
  (distal) 
  of 
  all 
  these 
  is 
  a 
  

   spine, 
  so 
  that 
  anteriorly 
  at 
  apex 
  the 
  femur 
  has 
  an 
  oblique 
  row 
  of 
  3 
  spines 
  ; 
  there 
  

   is 
  besides, 
  anteriorly, 
  a 
  moderately 
  long 
  bristle 
  near 
  base, 
  above 
  ventral 
  edge 
  ; 
  the 
  

   distal 
  spine, 
  long 
  and 
  stout, 
  is 
  placed 
  well 
  before 
  the 
  apex 
  ; 
  posteriorly 
  the 
  femur 
  

   bears 
  8-10 
  bristles 
  in 
  two 
  rows. 
  Tibia 
  (10 
  : 
  1) 
  rather 
  more 
  than 
  half 
  as 
  long 
  again 
  as 
  

   the 
  femur 
  ; 
  its 
  dorsal 
  edge 
  denticulate, 
  with 
  about 
  a 
  dozen 
  short 
  spines, 
  of 
  which 
  one 
  or 
  

   two 
  at 
  the 
  base 
  are 
  stronger 
  ; 
  on 
  ventral 
  edge 
  (on 
  apical 
  half) 
  8-9 
  spines, 
  on 
  the 
  

   anterior 
  surface 
  about 
  12 
  bristles 
  and 
  one 
  or 
  two 
  fewer 
  posteriorly 
  ; 
  apical 
  surface 
  

   posteriorly 
  much 
  roughened, 
  comb 
  of 
  5-6 
  spines 
  ; 
  the 
  apical 
  spine 
  equal 
  in 
  length 
  

   to 
  that 
  of 
  mid 
  tibia, 
  only 
  stouter. 
  Tarsus 
  similar 
  to 
  that 
  of 
  mid 
  leg 
  ; 
  proportions 
  

   of 
  tarsal 
  joints 
  : 
  foreleg, 
  26 
  : 
  27 
  : 
  26 
  ; 
  mid 
  leg, 
  45 
  : 
  33 
  : 
  25 
  ; 
  hind 
  leg, 
  45 
  : 
  33 
  : 
  27. 
  

  

  Abdomen 
  conic 
  ovate, 
  longer 
  than 
  head 
  and 
  thorax 
  together. 
  The 
  7th 
  (9th) 
  

   segment 
  from 
  above 
  triangular. 
  Ovipositor 
  very 
  shortly 
  extruded. 
  The 
  segments 
  

   (from 
  above) 
  subequal. 
  Tergites 
  peculiarly 
  constructed, 
  a 
  basal 
  band 
  of 
  variable 
  

   width 
  being 
  chitinised 
  and 
  emitting 
  thin 
  sub-parallel 
  chitinous 
  ribs 
  to 
  the 
  hind 
  edge. 
  

   Between 
  the 
  ribs 
  the 
  tergite 
  is 
  exceedingly 
  thin, 
  this 
  membranous 
  area 
  being 
  traversed 
  

   in 
  turn 
  by 
  extremely 
  delicate 
  chitinous 
  rays 
  or 
  wrinkles. 
  The 
  1st 
  (3rd) 
  tergite 
  (fig. 
  2) 
  

   has 
  50-60 
  of 
  these 
  major 
  ribs 
  and 
  at 
  each 
  side 
  a 
  group 
  of 
  raised 
  cells. 
  

  

  Chaetotaxy. 
  Each 
  tergite 
  has 
  1 
  bristle 
  at 
  the 
  side, 
  accompanied 
  in 
  the 
  case 
  of 
  

   tergite 
  1 
  by 
  a 
  second 
  much 
  smaller. 
  In 
  the 
  middle 
  tergites 
  1-4 
  are 
  bare, 
  while 
  tergites 
  

   2-6 
  have 
  2 
  bristles 
  (1, 
  1) 
  about 
  the 
  mid 
  line 
  ; 
  tergite 
  7 
  has 
  10 
  bristles 
  (5, 
  5). 
  The 
  first 
  

   sternite 
  is 
  bare 
  ; 
  2-4 
  bear 
  2 
  bristles 
  (1, 
  1), 
  median 
  in 
  position. 
  The 
  last 
  sternite 
  bears 
  

   6 
  bristles 
  in 
  all, 
  2 
  at 
  each 
  side 
  and 
  2 
  below 
  the 
  ovipositor. 
  The 
  sting 
  is. 
  relatively 
  

   stout, 
  with 
  6 
  teeth 
  at 
  apex. 
  

  

  Length, 
  about 
  0-9 
  mm. 
  ; 
  expanse, 
  1-8 
  mm. 
  

  

  Type 
  2 
  in 
  the 
  British 
  Museum 
  ; 
  one 
  of 
  2 
  2$ 
  bred 
  from 
  ova 
  of 
  Promecotheca 
  reichei, 
  

   a 
  Hispid 
  beetle 
  injurious 
  to 
  the 
  foliage 
  of 
  coconut 
  (Cocos 
  nucifera) 
  Cicia, 
  Fiji, 
  

   7.xii.l921 
  (H. 
  W. 
  Simmonds, 
  No. 
  809), 
  and 
  received 
  from 
  the 
  Imperial 
  Bureau 
  

   of 
  Entomology. 
  

  

  Chaetostricha 
  cratitia, 
  sp. 
  n., 
  is 
  closely 
  allied 
  to 
  C. 
  schlickii, 
  Kryger 
  (I.e. 
  p. 
  307, 
  

   1918), 
  from 
  Dyrehaven, 
  Denmark 
  (host 
  unknown). 
  In 
  the 
  Danish 
  species 
  the 
  scape 
  

   and 
  pedicel 
  are 
  subequal, 
  and 
  the 
  funicular 
  joint 
  a 
  little 
  less 
  than 
  half 
  the 
  club, 
  

   which 
  again 
  is 
  shorter 
  than 
  the 
  pedicel, 
  ring 
  joint 
  and 
  funicular 
  joint 
  combined. 
  

  

  Genus 
  Encyrtus, 
  Dalm. 
  

   Encyrtus 
  cotterelli, 
  sp. 
  n. 
  

  

  2. 
  — 
  Head, 
  legs 
  entirely 
  (except 
  empodia 
  and 
  last 
  joint 
  of 
  hind 
  tarsus), 
  prothorax, 
  

   mesoscutum, 
  axillae, 
  mesosternopleurae, 
  and 
  propodeon 
  (except 
  on 
  mid-third 
  

   dorsally) 
  clear 
  cinnamon 
  (a 
  little 
  paler 
  on 
  legs) 
  ; 
  scutellum, 
  metanotum, 
  middle 
  of 
  

   propodeon 
  and 
  abdomen 
  dark 
  brown 
  with 
  metallic 
  reflections, 
  which 
  on 
  the 
  abdomen 
  

  

  