THE KEPKODUCTIVE SYSTEM. 



133 



Pen AcGI 



VJLW YIDS IXS 



ji-iQ 58. A, reproductive organs of drone, dorsal view, natural position ; B, inner surface 



of dorsal wall of bulb of penis (E, PenB), showing gelatinous tbiclsening (ss) ; C, 

 group of spermatozoa and intermixed granules ; D, terminal segments of male abdomen, 

 showing the seventh tergum (VIIT) removed from its sternum (¥IIS) and the penis 

 (Pen) partly protruded ; B, lateral view o£ penis as invaginated within abdomen, and 

 ejaculatory duct (EjD). 



