306 



EMBRYOLOGY OF INSECTS AND MYRIAPODS 



Fig. 254. — Brachyrhinus. 



Section of stomodaeum {stom). 



(myct) Mycetocytes. 



sub.ser stom 



Fig. 255. — Brachyrhinus. Sagittal section of advanced stage, {am) Amnion, (myct) 

 Mycetocytes. {nc) Nerve cord, (ser) Serosa, (stom) Stomodaeum. {sub. ser) Subserosa. 

 The open space between embryo and subserosa is unnatural. It is caused by shrinkage. 



