- 63 PERIPLANETA. 



122. Mouth Parts. With the aid of a needle remove the mouth parts separately 

 and draw them, showing : (a) mandibles ; (b) first maxillae and maxillary palps ; (c) second 

 maxillae, joined together to form labium, with labial palps. 



Examine the demonstration specimen of the month parts. 



123. Egg Case. Draw an egg-case, snowing the partitions separating the eixteeti 

 eggs. 



