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the  preceding  species  S.  hercules.  But  from  this  it  differs  wholly  in 
the  form  of  its  first  and  last  dorsal  plates  and  in  the  hairiness  and 
punctuation,  not  to  mention  the  granules,  with  which  the  tergites 
are  adorned.  In  its  long  and  strong  mandibular  tooth  and  in  the 
powerful  claws  of  its  first  two  pairs  of  legs,  it,  so  far  as  I  know, 
stands  quite  alone  in  the  family.  This  armature  would  seem  to  indi- 
cate some  peculiarity  in  the  nature  of  its  food  or  habitat,  but  until 
it  is  known  whether  the  female  presents  the  same  features  or  whether 
they  are  characteristic  of  the  male  sex,  it  seems  idle  to  speculate  on 
the  point. 
Zephronia, 
28.  Zephronia  nigriceps  sp.  n.  Pl.  XX,  figs.  2— 2\ 
?Syn.  Sphaeropœus  insignis  (Brandt),  Karsch  Arch.  f.  Naturg. 
1881,  pl.  II,  fig.  11,  D,  d,  d,  —  ?Sph.  insignis  Brandt. 
Java:  Buitenzorg.  A  large  number  of  examples. 
Colour  (in  alcohol)  of  a  dull  ochre  brown  ;  anterior  half  of  tergites 
with  greenish  tint;  head,  nuchal  plate,  anterior  border  of  1st  dorsal 
plate  and  hinder  edge  of  the  rest  of  the  tergites  blackish. 
Ç,  Head-plate  punctured  throughout  although  more  sparsely  above 
thau  below;  furnished  with  longish  hairs  below;  its  upper  margin 
shallowly  excavated  in  the  middle  line. 
Antennae  of  moderate  length ,  apical  segment  clavate. 
Nuchal-plate  somewhat  deeply  but  irregularly  punctured  through- 
out, its  anterior  border  lightly  sinuate;  a  conspicuous  sulcus,  defined 
below  by  a  fine  ridge,  crosses  the  plate  in  its  anterior  half,  running 
from  angle  to  angle,  not  closely  in  contact  with  the  anterior  border 
and  in  the  middle  not  following  its  sinuation. 
2nd  dorsal  plate  with  upturned  anterior  edge;  the  raised  part  of 
the  tergite,  which  is  coarsely  and  closely  punctured,  with  a  vertical, 
smooth,  anterior  border;  the  middle  of  this  vertical  border  is  marked 
by  a  strong  keel  which  runs  over  the  summit  of  the  plate  from  side 
to  side;  laterally  this  keel  is  connected  with  the  upper  surface  by 
about  half  a  dozen  oblique  ridges;  lamina  of  the  plate  very  large, 
rising  somewhat  suddenly,  though  not  abruptly,  high  up  opposite  the 
eye ,  the  edge  evenly  rounded ,  but  considerably  thicker  near  the  an- 
terior point  of  origin  of  the  lamiua  than  elsewhere. 
Tergites,  following  the  first,  shortly  hairy  in  parts,  closely  and  thickly 
