6 INVERTEBRATE ZOOLOGY 
Exercise 2. Draw an outline on the same scale of the ven- 
tral aspect of your beetle, tracing carefully the sutures 
between the segments. Number the thoracic and abdomi- 
nal segments. 
Exercise 3. Remove a mesothoracic leg and draw an outline 
of it on the scale of 5. Label the segments. 
Exercise 4. Remove a wing and draw an outline of it on a scale 
of 5, tracing in the veins. 
Save your specimen in formalin or alcohol for future use. 
