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SMITHSONIAN    MISCELLANEOUS    COLLECTIONS  VOL.    96 
external  genital  organs,  consisting  of  three  thick  lobelike  phallomeres 
with  various  accessory  prongs  (JPhm,  rPhm,  vPhm) .  The  short  tenth 
segment  presents  dorsally  a  small  triangular  tergum  (XT)  with 
lateral  condyles  on  which  articulate  the  bases  of  the  long  slender 
cerci  (Cer).  The  venter  of  the  tenth  segment  is  membranous  and 
forms  the  short  dorsal  wall  of  the  genital  chamber.  The  eleventh 
segment  is  much  reduced  ;  it  consists  principally  of  the  two  para- 
procts  (Papt),  which  are  mostly  concealed  beneath  the  tenth  tergum, 
Fig.  9. — Mantoidea :    male  and  female  genitalia  and  a  spermatophore. 
A,  Tcnodcra  sinensis  Saussure,  male,  internal  genitalia,  dorsal  view.  B, 
same,  seminal  vesicles  exposed  by  removal  of  most  of  accessory  glands.  C, 
same,  female,  ventral  view  of  ovipositor,  spermathecal  aperture,  and  opening  of 
accessory  glands.  D,  Mantis  religiosa  Linnaeus,  spermatophore  (from  specimen 
furnished  by  K.  D.  Roeder). 
AcGlds,  accessory  glands ;  Apr,  aperture  of  accessory  glands ;  Dej,  ductus 
ejaculatorius;  PhGld,  phallic  gland;  Spr,  aperture  of  spermatheca;  Tes,  testis; 
Vd,  vas  deferens;  iVI,  2VI,  3VI,  valvulae  of  ovipositor;  Vsm,  vesiculae 
seminales. 
but  the  epiproct  is  present  as  a  soft  median  lobe  projecting  from  the 
under  surface  of  the  tenth  tergum.  The  tenth  and  eleventh  abdominal 
segments  thus  have  the  same  structure  in  the  mantids  as  in  the 
blattids. 
The  internal  genitalia. — The  internal  male  reproductive  organs  of 
Tenodera  (fig.  9  A,  B)  include  a  pair  of  large  testes  (A,  Tes),  the 
vasa  deferentia  {Vd),  a  mass  of  tubular  accessory  glands  {AcGlds), 
a  pair  of  vesiculae  seminales  (B,  Vsm)  in  which  the  spermatozoa  are 
stored,  the  ejaculatory  duct  {Dej),  and  a  phallic  gland  (A,  PhGld). 
The  testes,  which  lie  laterally  in  the  fifth,  sixth,  and  seventh  abdominal 
