OR, MANUAL OF THE APIARY. 



33 



as the word " insect " comes from the L,atin, 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. 



Expiratory Apparatm of Bee, magnified — After Jhmean. 



a Head, 6 Thorax, c Abdomen, d Antennae, e Compound Eyes, f Air-sacs, 

 q g^ g" Legs,/' TraoheBe. 



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

 tenna (Fig. 1, d), 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 



