﻿4 
  Mr. 
  G. 
  T. 
  Baker's 
  notes 
  on 
  the 
  genitalia 
  

  

  figured 
  at 
  1 
  c, 
  magnified 
  about 
  23| 
  diameters, 
  so 
  that 
  its 
  

   curious 
  structure 
  can 
  thus 
  be 
  easily 
  seen. 
  

  

  The 
  ovarian 
  sack 
  is 
  also 
  present 
  and 
  well-developed, 
  

   with 
  nothing 
  unusual 
  about 
  it. 
  

  

  At 
  fig. 
  1 
  A 
  the 
  left 
  abnormal 
  ? 
  clasp 
  is 
  shown 
  magnified 
  

   about 
  47 
  diameters 
  (in 
  fig. 
  1 
  it 
  is 
  numbered 
  b) 
  ; 
  it 
  is 
  

   fixed 
  on 
  to 
  the 
  valve 
  near 
  the 
  centre, 
  and 
  is 
  somewhat 
  

   globose 
  in 
  shape, 
  being 
  attached 
  to 
  the 
  valve 
  by 
  a 
  

   pyramidal 
  neck, 
  probably 
  the 
  other 
  hanging 
  pendant, 
  

   aheady 
  mentioned. 
  Similarly 
  magnified 
  at 
  fig. 
  1b 
  is 
  the 
  

   right 
  equally 
  curious 
  2 
  clasp 
  (in 
  fig. 
  1 
  numbered 
  bl) 
  ; 
  

   it 
  is 
  shown 
  afiixed 
  to 
  the 
  arm-like 
  pendant, 
  so 
  that 
  the 
  

   structure 
  of 
  both 
  the 
  aborted 
  clasp 
  and 
  the 
  pendant 
  is 
  

   readily 
  seen. 
  The 
  2 
  clasp 
  appears 
  to 
  be 
  sufficiently 
  

   large 
  to 
  form 
  almost 
  the 
  two 
  ordinary 
  clasps 
  of 
  this 
  sex. 
  

  

  In 
  my 
  figure 
  (No. 
  2) 
  of 
  the 
  typical 
  genitalia 
  of 
  3" 
  

   " 
  V. 
  Gaa," 
  I 
  have 
  only 
  drawn 
  the 
  one 
  valve 
  for 
  the 
  sake 
  

   of 
  clearness, 
  and 
  the 
  one 
  arm 
  of 
  the 
  tegumen 
  and 
  the 
  

   intromittent 
  organ 
  are 
  shown 
  dotted 
  for 
  the 
  same 
  reason. 
  

  

  The 
  valve 
  (fig. 
  2 
  a) 
  is 
  similar 
  to 
  that 
  already 
  described, 
  

   but 
  the 
  inner 
  curved 
  extremity 
  is 
  more 
  curved 
  down- 
  

   wards, 
  and 
  the 
  apex 
  is 
  longer 
  and 
  not 
  curved 
  quite 
  so 
  

   sharply 
  as 
  in 
  the 
  gynandromorphous 
  insect, 
  and 
  the 
  upper 
  

   margin 
  is 
  j)roduced 
  upwards 
  at 
  about 
  two-thirds 
  from 
  its 
  

   apex 
  into 
  a 
  sort 
  of 
  knob, 
  from 
  which 
  hangs 
  the 
  arm-like 
  

   pendant 
  (fig. 
  2 
  b), 
  which 
  is 
  likewise 
  similar 
  to 
  that 
  just 
  

   described, 
  onlj'- 
  instead 
  of 
  having 
  an 
  elbow-jointed 
  attach- 
  

   ment, 
  it 
  simply 
  hangs 
  from 
  the 
  margin 
  of 
  the 
  clasp. 
  

  

  The 
  tegumen 
  (fig. 
  2d) 
  is 
  a 
  well-developed 
  hood 
  of 
  a 
  

   saddle-like 
  shape, 
  elongated 
  posteriorly 
  downwards, 
  and 
  

   developed 
  considerably 
  more 
  behind 
  than 
  before. 
  

  

  Dr. 
  White 
  describes 
  the 
  tegumen 
  as 
  forming 
  " 
  a 
  

   chitinous 
  ring 
  more 
  or 
  less 
  round 
  the 
  ventral 
  arc." 
  This 
  

   ring 
  forms 
  more 
  correctly 
  two 
  arms 
  (fig. 
  2 
  dl), 
  each 
  fixed 
  

   in 
  the 
  saccus, 
  and 
  being 
  capable 
  of 
  motion 
  fore 
  and 
  aft, 
  

   and 
  also, 
  to 
  a 
  certain 
  extent, 
  of 
  lateral 
  movement. 
  

  

  The 
  uncus 
  (fig. 
  2f) 
  forms 
  the 
  extremity 
  of 
  the 
  tegu- 
  

   men, 
  and 
  in 
  v. 
  Gcea 
  is 
  somewhat 
  the 
  shape 
  of 
  a 
  chough's 
  

   bill, 
  but 
  broader 
  at 
  the 
  tip 
  in 
  proportion, 
  the 
  apex 
  of 
  

   which 
  lies 
  between 
  the 
  upper 
  margins 
  of 
  the 
  two 
  valves. 
  

   It 
  is 
  probabl}^ 
  capable 
  of 
  independent 
  motion 
  in 
  a 
  vertical 
  

   direction, 
  but 
  I 
  think 
  is 
  most 
  likely 
  incapable 
  of 
  further 
  

   movement 
  apart 
  from 
  the 
  tegumen, 
  to 
  which 
  it 
  is 
  jointed. 
  

  

  The 
  saccus 
  (fig. 
  2<?), 
  whereto 
  the 
  joints 
  of 
  both 
  valves 
  

  

  