260 TRANSFORMATIONS OF INSECTS. 
small, some are slightly larger, and a few are of considerable 
size, and are usually at the ends of the combs. The smallest 
are for the larve of workers, the next size will be filled by those 
of males, and the largest cells will contain queens or fertile 
females. 
As soon as the cells are finished the queen or fertile female 
of the colony, or swarm, runs over the surface of the combs and 
lays an egg in each cavity, and she is attended by a host of 
workers, who take care that only one egg is dropped into each 
cell. Should two fall in, one is pulled out and destroyed. When 
the laying is finished the work of the queen is at an end, and she 
does not concern herself in any way about the future larvee, or 
the attentions of the workers to them. 
The larve are hatched in three days, and the workers im- 
mediately begin to take charge of them. It is possible that 
the oldest workers (those that cannot build or carry honey 
so well as others) are particularly the nurses, and they feed the 
larve, as in the case of other Wymenoptera. The larve grow 
rapidly, and make a silken cocoon for themselves before under- 
going metamorphosis. The cocoon, as usual, shuts up the cell. 
The larve resemble those of other nest-making //ymenoptera, 
but they are less developed and weaker, for they cannot seize their 
own nourishment when it is brought to them, and they have to 
be fed from the mouth of the nurse. 
There are two theories concerning the origin of the female and 
worker bees. One very doubtful one is as follows; and the other 
can be best understood by referring to Von Siebold’s researches 
on Polistes gallica, already mentioned. 
The bees produce fertile or sterile females (workers), accord- 
ing to their will, and probably the feeding of the larvee has much 
to do with the development into egg-bearing or sterile insects. 
Now and then it happens that the larve of workers (sterile bees), 
which are located in cells near that of a fertile female larva (a 
future queen) receive, more or less accidentally, some of the 
particular nourishment intended for their important neighbour. 
The small quantity of royal food alters the condition of the de- 
velopment of the reproductive organs in the workers, and they 
become more or less’able to lay. When a hive has lost its | 
