SQUASH-BUG. 



Can you distinguish three regions in the body? How many 

 legs do you find? Have these the same joints as in the grass- 

 hopper? How many joints in the tarsus? Do you find com- 

 pound eyes, ocelli, and antennae on the head? Examine the 

 lower surface of the head and find the beak. See if with needles 

 you can separate it in several needle-like parts. This can 

 only be done with great care in so small a form as the squash- 

 bug. The student, if successful, will find four needle-like 

 pieces (mandibles and maxillae) sheathed in a groove-like 

 labium. Could this beak be used for biting and chewing, or 

 for piercing and sucking? Notice the wings, drawing one of 

 each pair. In the anterior wing are the basal and distal parts 

 equally thick? How many joints in the abdomen? Where 

 are the spiracles? 



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