﻿174 
  BRUCE 
  F. 
  CUMMINGS. 
  

  

  between 
  dorsal 
  and 
  ventral 
  lips, 
  whereas 
  in 
  the 
  male 
  the 
  slit 
  is 
  directed 
  dorsally 
  

   and 
  the 
  lips 
  are 
  anterior 
  and 
  posterior. 
  

  

  Chaetotaxy, 
  Male. 
  — 
  Head 
  : 
  Anterior 
  margin 
  with 
  numerous 
  small 
  minute 
  hairs. 
  

   Dorsal 
  surface 
  with 
  many 
  scattered 
  minute 
  denticles 
  or 
  short 
  spiny 
  hairs. 
  At 
  the 
  

   anterior 
  lateral 
  angle, 
  one 
  long 
  bristle, 
  succeeded 
  from 
  behind 
  forwards 
  by 
  a 
  very 
  

   short 
  one, 
  then 
  a 
  longer 
  one 
  and 
  then 
  another 
  shorter 
  one. 
  Posterior 
  lateral 
  angle 
  

   with 
  one 
  long 
  bristle. 
  Thorax 
  : 
  Along 
  hind 
  margin 
  of 
  pronotum 
  two 
  long 
  hairs, 
  one 
  

   on 
  each 
  side. 
  Lateral 
  angles 
  of 
  metanotum 
  with 
  two 
  or 
  three 
  long 
  bristles 
  and 
  

   three 
  or 
  four 
  short 
  spines. 
  Hind 
  margin 
  of 
  metanotum 
  with 
  a 
  row 
  of 
  bristles, 
  the 
  

   two 
  outside 
  ones 
  being 
  very 
  long 
  and 
  reaching 
  to 
  the 
  fourth 
  abdominal 
  segment. 
  

   Abdomen 
  : 
  Many 
  fairly 
  long 
  hairs 
  on 
  the 
  dorsal 
  surface 
  occupying 
  the 
  median 
  area. 
  

   Pleurites 
  bare, 
  except 
  at 
  the 
  external 
  angles, 
  where 
  there 
  are 
  two 
  fairly 
  long 
  bristles, 
  

   and 
  except 
  for 
  the 
  hind 
  margin 
  of 
  the 
  last 
  pleurite, 
  which 
  has 
  a 
  row 
  of 
  three 
  or 
  four 
  

   long 
  bristles. 
  Two 
  bristles 
  on 
  the 
  dorsal 
  surface 
  of 
  the 
  last 
  segment 
  arising 
  just 
  

   over 
  the 
  base 
  of 
  each 
  parameron, 
  one 
  on 
  each 
  side. 
  On 
  the 
  ventral 
  surface 
  there 
  is 
  

   a 
  single 
  row 
  of 
  rather 
  fine 
  hairs 
  on 
  each 
  of 
  the 
  first 
  six 
  segments. 
  The 
  first 
  row 
  lies 
  

   between 
  the 
  hind 
  coxae 
  and 
  consists 
  of 
  only 
  four 
  hairs. 
  The 
  sixth 
  row 
  is 
  very 
  convex, 
  

   starting 
  on 
  each 
  side 
  on 
  segment 
  6 
  and 
  curving 
  forward 
  on 
  to 
  segment 
  5. 
  Convex 
  

   terminal 
  margin 
  of 
  last 
  segment 
  with 
  numerous 
  long 
  bristles. 
  

  

  Chaetotaxy, 
  Female. 
  — 
  Head 
  : 
  Anterior 
  lateral 
  angles 
  of 
  the 
  post-antennal 
  area 
  

   each 
  with 
  a 
  small 
  spine-like 
  hair 
  and 
  three 
  other 
  spines 
  still 
  more 
  minute. 
  Abdomen 
  : 
  

   Hind 
  margin 
  of 
  last 
  segment 
  with 
  six 
  long 
  hairs, 
  three 
  on 
  each 
  side. 
  The 
  lower 
  lip 
  

   of 
  the 
  genital 
  opening 
  with 
  the 
  sides 
  drawn 
  out 
  into 
  a 
  gonopod-like 
  form, 
  bearing 
  

   numerous 
  short 
  hairs, 
  which 
  are 
  however 
  longer 
  than 
  the 
  hairs 
  along 
  the 
  central 
  

   part 
  of 
  the 
  lip. 
  

  

  Mouth-parts 
  (fig. 
  8, 
  b). 
  — 
  Mandibles 
  : 
  As 
  usual, 
  very 
  powerful 
  and 
  densely 
  chitinous 
  ; 
  

   articulation 
  complex. 
  First 
  maxillae 
  consisting 
  of 
  a 
  single 
  pair 
  of 
  lobes, 
  one 
  on 
  

   each 
  side 
  of 
  the 
  mouth, 
  without 
  palpi. 
  As 
  in 
  Goniodes 
  tetraonis 
  (13) 
  and 
  in 
  some 
  

   others, 
  these 
  lobes 
  are 
  thin, 
  flattened 
  and 
  atrophied, 
  lying 
  inside 
  the 
  mouth. 
  In 
  

   this 
  species 
  the 
  lobes 
  are 
  bare 
  of 
  hairs, 
  setae 
  or 
  hooks. 
  Second 
  maxillae 
  : 
  On 
  the 
  

   labium 
  are 
  the 
  following 
  structures 
  : 
  — 
  (a) 
  two 
  relatively 
  large 
  columnar 
  lobes 
  with 
  

   terminal 
  spines, 
  usually 
  called 
  paraglossae 
  ; 
  (b) 
  between 
  the 
  paraglossae 
  six 
  hairs, 
  

   three 
  on 
  each 
  side, 
  the 
  two 
  outside 
  ones 
  on 
  each 
  side 
  carried 
  each 
  on 
  a 
  minute 
  promi- 
  

   nence 
  ; 
  (c) 
  at 
  the 
  base 
  of 
  each 
  paraglossa, 
  lower 
  down 
  on 
  the 
  labium, 
  a 
  minute 
  lobe, 
  

   well 
  chitinised, 
  angular, 
  bare, 
  previously 
  described 
  by 
  Shipley 
  (13) 
  in 
  G. 
  tetraonis. 
  

   The 
  paraglossae 
  perhaps 
  represent 
  the 
  labial 
  palpi 
  and 
  the 
  minute 
  lobes 
  (86, 
  OL) 
  

   the 
  outer 
  lobes. 
  Oesophageal 
  sclerite 
  : 
  The 
  anterior 
  cornu 
  short 
  and 
  concave 
  on 
  the 
  

   inner 
  margin. 
  Cushion, 
  as 
  usual 
  in 
  the 
  Goniodidae, 
  well 
  developed. 
  A 
  round 
  

   " 
  blob 
  " 
  of 
  dark 
  chitin 
  is 
  situated 
  in 
  the 
  middle 
  of 
  its 
  anterior 
  margin. 
  

  

  Male 
  Copulatory 
  Apparatus. 
  — 
  The 
  figure 
  (fig. 
  8 
  c) 
  makes 
  it 
  possible 
  to 
  dispense 
  

   with 
  a 
  great 
  deal 
  of 
  description. 
  The 
  parts 
  are 
  rather 
  complex 
  and 
  closely 
  fitting. 
  

   The 
  lateral 
  margins 
  alone 
  of 
  the 
  basal 
  plate 
  are 
  strongly 
  chitinised. 
  The 
  paramera 
  

   are 
  short 
  and 
  broad, 
  broader 
  at 
  the 
  distal 
  than 
  at 
  the 
  proximal 
  end. 
  The 
  endomera 
  

   lie 
  next 
  within 
  the 
  paramera 
  and, 
  though 
  free 
  distally, 
  are 
  fused 
  with 
  one 
  another 
  

   higher 
  up 
  ; 
  but 
  still 
  higher 
  up 
  they 
  become 
  free 
  again, 
  the 
  free 
  ends 
  being 
  conspicu- 
  

  

  