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SMITHSONIAN    MISCELLANEOUS    COLLECTIONS  VOL.    96 
tion,  and  the  cuticula  is  removed,  the  organ  exposed  within  (F)  is  so 
distinctly  of  the  imaginal  type  of  structure  (fig.  36  C)  that  there  is 
no  question  of  the  identity  of  the  parts. 
Gryllotalpidac. — The  abdomen  of  Gryllotalpa  has  a  simple,  rounded 
posterior  end    (fig.  38  A).    The  ninth  segment  is  short  above  and 
VIIIT  KT  XT 
PhGld 
Fig.  38. — Tettigonioidea-Gryllotalpidae :  external  male  genitalia  of  Gryllo- 
talpa and  Scaptcriscus. 
A,  Gryllotalpa  he.radactyla  Perty,  end  of  abdomen,  lateral  view.  B,  same, 
phallus  and  associated  internal  structures,  dorsal  view.  C,  same,  sclerites  in 
dorsal  wall  of  phallic  cavity,  ventral  view.  D,  Scaptcriscus  vicimis  Scudder, 
dorsal  wall  of  phallic  cavity,  and  terminus  of  phallic  gland,  dorsal  view.  _E,  same, 
distal  process  of  dorsal  wall  of  phallic  cavity,  and  terminus  of  phallic  gland, 
lateral  view.  F,  same,  distal  process  of  phallic  cavity,  and  supporting  sclerite, 
ventral  view.  G,  same,  proximal  processes  of  dorsal  wall  of  phallic  cavity, 
ventral  view. 
cc,  distal  process  of  dorsal  wall  of  phallic  cavity ;  Ccr,  cercus ;  d,  mass  of  small 
accessory  glands  (see  fig.  39  A)  ;  dd,  sclerite  in  dorsal  wall  of  phallic  cavity; 
cc,  proximal  processes  in  dorsal  wall  of  phallic  cavity;  cjv,  vesicle  of  ejacula- 
tory  duct:  ff.  supporting  sclerites  of  proximal  processes  (cc)  ;  Papt,  paraproct ; 
PhGld,  phallic  gland;  u,  fold  of  wall  of  phallic  cavity;  vl,  ventral  lobe  of  phal- 
lus ;  x-x,  cut  edge  of  anterior  wall  of  genital  chamber. 
below,  the  sternum  (IXS)  not  being  enlarged  as  a  subgenital  plate. 
The  lateral  angles  of  the  small  tenth  tergum  (XT)  extend  above  the 
bases  of  the  long,  tapering  cerci.  The  epiproct  is  free  from  the  tenth 
tergum,  and  together  with  the  paraprocts  forms  a  small  conical 
proctiger. 
The  male  genital  organ  of   Gryllotalpa  hexadactyla  is  ordinarily 
concealed  above  the  ninth  abdominal  sternum,  and  has  a  very  simple 
