OR, MANUAL OF THR APIARY. 



33 



as the word " insect " comes from the Latin, and means to 

 cut in, and in no other Arthropod does the ring--structure ap- 

 pear so marked upon merely a superficial examination. More 

 than this, the true insects when fully developed have, unlike all 

 other Arthropods, three well-marked divisions of the body, 

 Fig. 1. 



Respiratory Apparatus of Bee, magnified— After Ihmcan. 



a Head, h Thorax, c Abdomen, d Antennae, e Compound Eyes, f Air-sacs 

 qy' g'' Legs,/' Tracheae. ' 



(Fig. 1), namely : the head (Fig-. 1, a), which contains the an- 

 tennae (Fig-. 1, rf), the horn-like appendages common to all 

 insects; eyes (Fig. 1, e), and mouth organs ; the thorax (Fig. 

 1, b), which bears the legs (Fig. 1, g), and wings, when they 

 are present ; and lastly, the abdomen (Fig. 1, c), which, though 



