FEEDING AND BREATHING 



41 



Fig 14— Magnified Diagram of the Tracheal System in a young 

 Termite, d, dorsal, sp, spiracular, and v, ventral longitudmal trunks ; 

 c, commissure ; vs, visceral branches ; a, antennal branch, i, 2, 3 (on 

 left side), air-tubes of legs, i, ii, thoracic spiracles ; 1-8 M right side) 

 abdominal spiracles. Adapted from C. Fuller, Ann. Natal Mus. iv, 1919. 



