92 



W. A. SANDS 



183 



182 



197 



Figs 178-201. Astalotermes, worker mandibles, mesenteric-proctodeal junctions showing 

 attachments of malpighian tubules and positions of malpighian knot, and views of enteric 

 valve seatings. 178-183, A. achohis; 184-189, A. brevior; 190-195, A. obstructus; 

 196-201, A. quietus. 



