327 
conspicuous  blunted  tooth-like  process.  2nd  pair  with  the  movable 
finger  externally  convex,  and  bearing  a  distinct,  small,  nodular  di- 
stal segment;  on  the  inner  surface  the  proximal  half  gives  rise  to  a 
membranous  tooth-like  lamina  which  corresponds  with  a  similar  lamina 
on  the  inner  surface  of  the  immovable  dactylus,  immovable  dactylus 
smaller,  slightly  shorter  and  externally  less  convex  than  the  movable 
dactylus. 
9  —  Anal  tergite  like  that  of  male;  apical  antennal  segment  slightly 
smaller. 
Vulva  composed  of  two  segments,  whereof  the  proximal  is  smal- 
ler, quadrate,  with  the  middle  of  its  distal  edge  cleft  by  the  short 
generative  aperture;  the  distal  segment,  or  cap,  is  larger,  polished 
and  closely  adherent  to  the  external  and  distal  surfaces  of  the  proxi- 
mal segment;  its  inner  margin  is  nearly  straight,  its  inner  angle 
produced  and  rounded,  is  distal  surface  oblique  and  slightly  concave, 
and  its  external  surface  exceedingly  convex. 
Length  from  less  than  30  to  a  little  over  50  mm.  In  the  drawings 
of  Dr.  Kaesoh's  specimens,  the  movable  dactylus  on  both  pairs  of 
forceps  is  represented  as  composed  of  but  one  segment;  and  the  cap 
of  the  vulva  is  made  to  appear  as  if  composed  of  two  segments. 
Mr.  Butler  was  apparently  ignorant  when  he  described  Z.  barbata 
of  the  existence  of  Dr.  Karsch's  paper.  The  specimens  upon  which 
this  species  was  established  differ  only  in  colour  from  the  specimens 
of  Z.  banksiana.  Nevertheless  it  was  not  with  this  species  that  they 
were  compared  but  with  Z.  laevissima  —  a  species  with  which  her- 
cules has  but  little  affinity. 
The  British  Museum  has  specimens  of  this  species  from  Sumatra 
(Carl  Book  and  H.  0.  Forbes)  and  from  Padang  on  the  W.  coast  of 
the  Island.  In  the  Berlin  Museum,  according  to  Dr.  Karsoh,  in  ad- 
dition to  specimens  from  Sumatra  there  is  one  or  more  (?)  stated  to 
be  from  Ceylon.  I  however  doubt  this  locality. 
27.  Sphaeropœus  gladiator  sp.  n.  Pl.  XIX,  fig.  11  — 11c. 
Sumatra:  Paningahan.  One  specimen. 
Colour.  Hinder  half  of  tergites  black,  anterior  half  together  with 
head,  and  nuchal  plate  ochraceous;  antennae  and  legs  still  paler. 
Body  thickly  punctured;  closely  and  shortly  hirsute. 
Head-plate  coarsely  punctured  ;  hairy ,  especially  on  the  labral  region , 
