The clapping of the hands and the tinkling of brass afford bees great delight, and it is by these means that they are brought together; a strong proof, in fact, that they are possessed of the sense of hearing. When their work is completed, their offspring brought forth, and all their duties fulfilled, they still have certain formal exercises to perform, ranging abroad throughout the country, and soaring aloft in the air, wheeling round and round as they fly, and then, when the hour for taking their food has come, returning home. The extreme period of their life, supposing that they escape accident and the attacks of their enemies, is only seven years; a hive, it is said, never lasts more than ten.[76] There are some persons, who think that, when dead, if they are preserved in the house throughout the winter, and then exposed to the warmth of the spring sun, and kept hot all day in the ashes of fig-tree wood, they will come to life again. CHAP. 23.—METHODS OF RENEWING THE SWARM. These persons say also, that if the swarm is entirely lost, it may be replaced by the aid of the belly[77] of an ox newly killed, covered over with dung. Virgil also says[78] that this may be done with the body of a young bull, in the same way that the carcase of the horse produces wasps and hornets, and that of the ass beetles, Nature herself effecting these changes of one substance into another. But in all these last, sexual intercourse is to be perceived as well, though the characteristics of the offspring are pretty much the same as those of the bee. CHAP. 24. (21.)—WASPS AND HORNETS: ANIMALS WHICH APPROPRIATE WHAT BELONGS TO OTHERS. Wasps build their nests of mud in lofty places,[79] and make wax therein: hornets, on the other hand, build in holes or under ground. With these two kinds the cells are also hexagonal, but, in other respects, though made of the bark of trees, they strongly resemble the substance of a spider’s web. Their young also are found at irregular intervals, and are of unshapely appearance; while one is able to fly, another is still a mere pupa, and a third only in the maggot state. It is in the autumn, too, and not in the spring, that all their young are produced; and they grow during the full moon more particularly. The wasp which is known as the ichneumon,[80] a smaller kind than the others, kills one kind of spider in particular, known as the phalangium; after which it carries the body to its nest, covers it over with a sort of gluey substance, and then sits and hatches from it its young.[81] In addition to this, they are all of them carnivorous, while on the other hand bees will touch no animal substance whatever. Wasps more particularly pursue the larger flies, and after catching them cut off the head and carry away the remaining portion of the body.