OR, MANUAI, OF THB APIARY. 



483 



a silken tube (Fig. 262), which they have power to spin. They 

 remain in this tunnel of silk during- all their growth, enlarg- 

 ing- it as they eat. The noise, as they eat, can be heard 

 plainly by holding the comb to the ear. As they tunnel 



Fig. 262. 



Fig. 263. 



Tunnel of Bee-Moth Larva. — Original. 



Tunnel in Comb. — OT'igittal. 



among the larvae in brood-combs, the larvae are destroyed, and 

 will be removed from the hives. Thus, the presence of dead 

 larvae in front of the hive is often a sign of the presence of 

 insects in the hive. By looking closely, the presence of these 



Fig, 264. 



'm$^&m. 



LarvcE of Bee-Moth.— OrigiTial. 



larvae may be known by this robe of glistening silk, as it 

 extends in branching outlines (Fig. 263) along the surface of 

 the comb. A more speedy detection, even, than the defa.ced 

 comb, comes from the particles of comb, intermingled with 



