NO.    5      MALE  GENITALIA  OF  ORTHOPTEROID  INSECTS — SNODGRASS         1 5 
The  embiid  testis  thus  resembles  the  testis  of  the  primitive  phasmid 
Timema  (fig.  7B)  and  the  nymphal  testis  of  Blatta  orientalis  (fig. 
II  A,  B).  Grassi  and  Sandias,  and  Miikerji  describe  the  testis  of 
Embia  as  being  imperfectly  divided  into  five  consecutive  lobes ;  a 
Fig.  4. — Embioptera :    male  and  female  genitalia. 
A,  Embia  major  Imms,  internal  organs  of  male,  dorsal  view.  B,  same,  end 
of  female  abdomen,  lateral  view.  C,  same,  end  of  female  abdomen,  ventral 
view.  D,  Clothoda  nobilis  (Gerstaecker),  end  of  male  abdomen,  dorsal  view 
(from  Enderlein,  1912).  E,  same,  end  of  male  abdomen,  ventral  view  (from 
Enderlein,  1912).  F,  Embia  major,  end  of  male  abdomen,  dorsal  view  (from 
Crampton,  1918).  G,  Oligotoma  saundcrsii  Westwood,  end  of  male  abdomen, 
dorsal  view  (from  Walker,  1922).  H,  same,  end  of  male  abdomen,  ventral  view 
(from  Walker,  1922). 
a,  distal  process  of  left  half  of  tenth  abdominal  tergum;  AcGlds,  accessor} 
glands ;  b,  distal  process  of  right  half  of  tenth  tergum ;  c,  distal  process  of  ninth 
sternum ;  Ccr,  cercus ;  d,  basal  endite  of  cercus ;  e,  terminal  lobe  of  ninth  ster- 
num; Eppt,  epiproct;  Gtr,  gonotreme;  Iht,  left  hemitergite  of  tenth  segment; 
Papt,  paraproct ;  rht,  right  hemitergite  of  tenth  segment ;  Tcs,  testis ;  I'd,  vas 
deferens  ;  Vsin,  vesicula  seminalis. 
distinct  lobulation  was  not  observed  in  Embia  major,  but  the  single 
specimen  available  for  dissection  had  been  long  preserved  in  alcohol. 
Each  vas  deferens  (fig.  4  A,  Vd)  is  somewhat  enlarged  throughout 
most  of  its  length  to  form  a  long  slender  "  vesicula  seminalis  "  {Vsm), 
and  the  two  ducts  unite  posteriorly  in  a  short  ductus  ejaculatorius 
