Part 15
Of wild bees approximately 4500 varieties are known. It need scarcely be said that we shall not go through the list. Some day, perhaps, a profound study, and searching experiments and observations of a kind hitherto unknown, that would demand more than one lifetime, will throw a decisive light upon the history of the bee's evolution. All that we can do now is to enter this veiled region of supposition, and, discarding all positive statement, attempt to follow a tribe of hymenoptera in their progress towards a more intelligent existence, towards a little more security and comfort, lightly indicating the salient features of this ascension that is spread over many thousands of years. The tribe in question is already known to us; it is that of the "Apiens," whose essential characteristics are so distinct and well-marked that one is inclined to credit all its members with one common ancestor.*
*It is important that the terms we shall successively employ, adopting the classification of M. Emile Blanchard,-- "APIENS, APIDAE and APITAE,--should not be confounded. The tribe of the Apiens comprises all families of bees. The Apidae constitute the first of these families, and are subdivided into three groups: the Meliponae, the Apitae, and the Bombi (humble-bees). And, finally, the Apitae include all the different varieties of our domestic bees.
The disciples of Darwin, Hermann Muller among others, consider a little wild bee, the Prosopis, which is to be found all over the universe, as the actual representative of the primitive bee whence all have issued that are known to us to-day.
The unfortunate Prosopis stands more or less in the same relation to the inhabitants of our hives as the cave-dwellers to the fortunate who live in our great cities. You will probably more than once have seen her fluttering about the bushes, in a deserted corner of your garden, without realising that you were carelessly watching the venerable ancestor to whom we probably owe most of our flowers and fruits (for it is actually estimated that more than a hundred thousand varieties of plants would disappear if the bees did not visit them) and possibly even our civilisation, for in these mysteries all things intertwine. She is nimble and attractive, the variety most common in France being elegantly marked with white on a black background. But this elegance hides an inconceivable poverty. She leads a life of starvation. She is almost naked, whereas her sisters are dad in a warm and sumptuous fleece. She has not, like the Apidae, baskets to gather the pollen, nor, in their default, the tuft of the Andrenae, nor the ventral brush of the Gastrilegidae. Her tiny claws must laboriously gather the powder from the calices, which powder she needs must swallow in order to take it back to her lair. She has no implements other than her tongue, her mouth and her claws; but her tongue is too short, her legs are feeble, and her mandibles without strength. Unable to produce wax, bore holes through wood, or dig in the earth, she contrives clumsy galleries in the tender pith of dry berries; erects a few awkward cells, stores these with a little food for the offspring she never will see; and then, having accomplished this poor task of hers, that tends she knows not whither and of whose aim we are no less ignorant, she goes off and dies in a corner, as solitarily as she had lived.
We shall pass over many intermediary species, wherein we may see the gradual lengthening of the tongue, enabling more nectar to be extracted from the cups of corollas, and the dawning formation and subsequent development of the apparatus for collecting pollen,--hairs, tufts, brushes on the tibia, on the tarsus, and abdomen,--as also claws and mandibles becoming stronger, useful secretions being formed, and the genius that presides over the construction of dwellings seeking and finding extraordinary improvement in every direction. Such a study would need a whole volume. I will merely outline a chapter of it, less than a chapter, a page, which shall show how the hesitating endeavours of the will to live and be happier result in the birth, development, and affirmation of social intelligence.
We have seen the unfortunate Prosopis silently bearing her solitary little destiny in the midst of this vast universe charged with terrible forces. A certain number of her sisters, belonging to species already more skilful and better supplied with utensils, such as the well-clad Colletes, or the marvellous cutter of rose-leaves, the Megachile Centuncularis, live in an isolation no less profound; and if by chance some creature attach itself to them, and share their dwelling, it will either be an enemy, or, more often, a parasite.
For the world of bees is peopled with phantoms stranger than our own; and many a species will thus have a kind of mysterious and inactive double, exactly similar to the victim it has selected, save only that its immemorial idleness has caused it to lose one by one its implements of labour, and that it exists solely at the expense of the working type of its race.*
*The humble-bees, for instance, have the Psithyri as parasites, while the Stelites live on the Anthidia. "As regards the frequent identity of the parasite with its victim," M. J. Perez very justly remarks in his book "The Bees," "one must necessarily admit that the two genera are only different forms of the same type, and are united to each other by the closest affinity. And to naturalists who believe in the theory of evolution this relationship is not purely ideal, but real. The parasitic genus must be regarded as merely a branch of the foraging genus, having lost its foraging organs because of its adaptation to parasitic life."
Among the bees, however, which are somewhat too arbitrarily termed the "solitary Apidae," the social instinct already is smouldering, like a flame crushed beneath the overwhelming weight of matter that stifles all primitive life. And here and there, in unexpected directions, as though reconnoitring, with timid and sometimes fantastic outbursts, it will succeed in piercing the mass that oppresses it, the pyre that some day shall feed its triumph.
If in this world all things be matter, this is surely its most immaterial movement. Transition is called for from a precarious, egotistic and incomplete life to a life that shall be fraternal, a little more certain, a little more happy. The spirit must ideally unite that which in the body is actually separate; the individual must sacrifice himself for the race, and substitute for visible things the things that cannot be seen. Need we wonder that the bees do not at the first glance realise what we have not yet disentangled, we who find ourselves at the privileged spot whence instinct radiates from all sides into our consciousness? And it is curious too, almost touching, to see how the new idea gropes its way, at first, in the darkness that enfolds all things that come to life on this earth. It emerges from matter, it is still quite material. It is cold, hunger, fear, transformed into something that as yet has no shape. It crawls vaguely around great dangers, around the long nights, the approach of winter, of an equivocal sleep which almost is death....
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The Xylocopae are powerful bees which worm their nest in dry wood. Their life is solitary always. Towards the end of summer, however, some individuals of a particular species, the Xylocopa Cyanescens, may be found huddled together in a shivering group, on a stalk of asphodel, to spend the winter in common. Among the Xylocopae this tardy fraternity is exceptional, but among the Ceratinae, which are of their nearest kindred, it has become a constant habit. The idea is germinating. It halts immediately; and hitherto has not succeeded, among the Xylocopae, in passing beyond this first obscure line of love.
Among other Apiens, this groping idea assumes other forms. The Chalicodomae of the out-houses, which are building-bees, the Dasypodae and Halicti, which dig holes in the earth, unite in large colonies to construct their nests. But it is an illusory crowd composed of solitary units, that possess no mutual understanding, and do not act in common. Each one is profoundly isolated in the midst of the multitude, and builds a dwelling for itself alone, heedless of its neighbour. "They are," M. Perez remarks, "a mere congregation of individuals, brought together by similar tastes and habits, but observing scrupulously the maxim of each one for itself; in fact, a mere mob of workers, resembling the swarm of a hive only as regards their number and zeal. Such assemblies merely result from a great number of individuals inhabiting the same locality."
But when we come to the Panurgi, which are cousins of the Dasypodae, a little ray of light suddenly reveals the birth of a new sentiment in this fortuitous crowd. They collect in the same way as the others, and each one digs its own subterranean chambers; but the entrance is common to all, as also the gallery which leads from the surface of the ground to the different cells. "And thus," M. Perez adds, "as far as the work of the cells is concerned, each bee acts as though she were alone; but all make equal use of the gallery that conducts to the cells, so that the multitude profit by the labours of an individual, and are spared the time and trouble required for the construction of separate galleries. It would be interesting to discover whether this preliminary work be not executed in common, by relays of females, relieving each other in turn."
However this may be, the fraternal idea has pierced the wall that divided two worlds. It is no longer wild and unrecognisable, wrested from instinct by cold and hunger, or by the fear of death; it is prompted by active life. But it halts once more; and in this instance arrives no further. No matter, it does not lose courage; it will seek other channels. It enters the humble-bee, and, maturing there, becomes embodied in a different atmosphere, and works its first decisive miracles.
The humble-bees, the great hairy, noisy creatures that all of us know so well, so harmless for all their apparent fierceness, lead a solitary life at first. At the beginning of March the impregnated female who has survived the winter starts to construct her nest, either underground or in a bush, according to the species to which she belongs. She is alone in the world, in the midst of awakening spring. She chooses a spot, clears it, digs it and carpets it. Then she erects her somewhat shapeless waxen cells, stores these with honey and pollen, lays and hatches the eggs, tends and nourishes the larvae that spring to life, and soon is surrounded by a troop of daughters who aid her in all her labours, within the nest and without, while some of them soon begin to lay in their turn. The construction of the cells improves; the colony grows, the comfort increases. The foundress is still its soul, its principal mother, and finds herself now at the head of a kingdom which might be the model of that of our honeybee. But the model is still in the rough.
The prosperity of the humble-bees never exceeds a certain limit, their laws are ill-defined and ill-obeyed, primitive cannibalism and infanticide reappear at intervals, the architecture is shapeless and entails much waste of material; but the cardinal difference between the two cities is that the one is permanent, and the other ephemeral. For, indeed, that of the humble-bee will perish in the autumn; its three or four hundred inhabitants will die, leaving no trace of their passage or their endeavours; and but a single female will survive, who, the next spring, in the same solitude and poverty as her mother before her, will recommence the same useless work. The idea, however, has now grown aware of its strength. Among the humble-bees it goes no further than we have stated, but, faithful to its habits and pursuing its usual routine, it will immediately undergo a sort of unwearying metempsychosis, and re-incarnate itself, trembling with its last triumph, rendered all-powerful now and nearly perfect, in another group, the last but one of the race, that which immediately precedes our domestic bee wherein it attains its crown; the group of the Meliponitae, which comprises the tropical Meliponae and Trigonae.
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Here the organisation is as complete as in our hives. There is an unique mother, there are sterile workers and males. Certain details even seem better devised. The males, for instance, are not wholly idle; they secrete wax. The entrance to the hive is more carefully guarded; it has a door that can be closed when nights are cold, and when these are warm a kind of curtain will admit the air.
But the republic is less strong, general life less assured, prosperity more limited, than with our bees; and wherever these are introduced, the Meliponitae tend to disappear before them. In both races the fraternal idea has undergone equal and magnificent development, save in one point alone, wherein it achieves no further advance among the Meliponitae than among the limited offspring of the humble-bees. In the mechanical organisation of distributed labour, in the precise economy of effort; briefly, in the architecture of the city, they display manifest inferiority. As to this I need only refer to what I said in section 42 of this book, while adding that, whereas in the hives of our Apitae all the cells are equally available for the rearing of the brood and the storage of provisions, and endure as long as the city itself, they serve only one of these purposes among the Meliponitae, and the cells employed as cradles for the nymphs are destroyed after these have been hatched.*
*It is not certain that the principle of unique royalty, or maternity, is strictly observed among the Meliponitae. Blanchard remarks very justly, that as they possess no sting and are consequently less readily able than the mothers of our own bees to kill each other, several queens will probably live together in the same hive. But certainty on this point has hitherto been unattainable owing to the great resemblance that exists between queens and workers, as also to the impossibility of rearing the Meliponitae in our climate.
It is in our domestic bees, therefore, that the idea, of whose movements we have given a cursory and incomplete picture, attains its most perfect form. Are these movements definitely, and for all time, arrested in each one of these species, and does the connecting-line exist in our imagination alone? Let us not be too eager to establish a system in this ill-explored region. Let our conclusions be only provisional, and preferentially such as convey the utmost hope, for, were a choice forced upon us, occasional gleams would appear to declare that the inferences we are most desirous to draw will prove to be truest. Besides, let us not forget that our ignorance still is profound. We are only learning to open our eyes. A thousand experiments that could be made have as yet not even been tried. If the Prosopes, for instance, were imprisoned, and forced to cohabit with their kind, would they, in course of time, overstep the iron barrier of total solitude, and be satisfied to live the common life of the Dasypodae, or to put forth the fraternal effort of the Panurgi? And if we imposed abnormal conditions upon the Panurgi, would these, in their turn, progress from a general corridor to general cells? If the mothers of the humble-bees were compelled to hibernate together, would they arrive at a mutual understanding, a mutual division of labour? Have combs of foundation-wax been offered to the Meliponitae? Would they accept them, would they make use of them, would they conform their habits to this unwonted architecture? Questions, these, that we put to Very tiny creatures; and yet they contain the great word of our greatest secrets. We cannot answer them, for our experience dates but from yesterday. Starting with Reaumur, about a hundred and fifty years have elapsed since the habits of wild bees first received attention. Reaumur was acquainted with only a few of them; we have since then observed a few more; but hundreds, thousands perhaps, have hitherto been noticed only by hasty and ignorant travellers. The habits of those that are known to us have undergone no change since the author of the "Memoirs" published his valuable work; and the humble-bees, all powdered with gold, and vibrant as the sun's delectable murmur, that in the year 1730 gorged themselves with honey in the gardens of Charenton, were absolutely identical with those that to-morrow, when April returns, will be humming in the woods of Vincennes, but a few yards away. From Reaumur's day to our own, however, is but as the twinkling of an eye; and many lives of men, placed end to end, form but a second in the history of Nature's thought.
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Although the idea that our eyes have followed attains its supreme expression in our domestic bees, it must not be inferred therefrom that the hive reveals no faults. There is one masterpiece, the hexagonal cell, that touches absolute perfection,--a perfection that all the geniuses in the world, were they to meet in conclave, could in no way enhance. No living creature, not even man, has achieved, in the centre of his sphere, what the bee has achieved in her own; and were some one from another world to descend and ask of the earth the most perfect creation of the logic of life, we should needs have to offer the humble comb of honey.
But the level of this perfection is not maintained throughout. We have already dealt with a few faults and shortcomings, evident sometimes and sometimes mysterious, such as the ruinous superabundance and idleness of the males, parthenogenesis, the perils of the nuptial flight, excessive swarming, the absence of pity, and the almost monstrous sacrifice of the individual to society. To these must be added a strange inclination to store enormous masses of pollen, far in excess of their needs; for the pollen, soon turning rancid, and hardening, encumbers the surface of the comb; and further, the long sterile interregnum between the date of the first swarm and the impregnation of the second queen, etc., etc.
Of these faults the gravest, the only one which in our climates is invariably fatal, is the repeated swarming. But here we must bear in mind that the natural selection of the domestic bee has for thousands of years been thwarted by man. From the Egyptian of the time of Pharaoh to the peasant of our own day, the bee-keeper has always acted in opposition to the desires and advantages of the race. The most prosperous hives are those which throw only one swarm after the beginning of summer. They have fulfilled their maternal duties, assured the maintenance of the stock and the necessary renewal of queens; they have guaranteed the future of the swarm, which, being precocious and ample in numbers, has time to erect solid and well-stored dwellings before the arrival of autumn. If left to themselves, it is clear that these hives and their offshoots would have been the only ones to survive the rigours of winter, which would almost invariably have destroyed colonies animated by different instincts; and the law of restricted swarming would therefore by slow degrees have established itself in our northern races. But it is precisely these prudent, opulent, acclimatised hives that man has always destroyed in order to possess himself of their treasure. He has permitted only--he does so to this day in ordinary practice--the feeblest colonies to survive; degenerate stock, secondary or tertiary swarms, which have just barely sufficient food to subsist through the winter, or whose miserable store he will supplement perhaps with a few droppings of honey. The result is, probably, that the race has grown feebler, that the tendency to excessive swarming has been hereditarily developed, and that to-day almost all our bees, particularly the black ones, swarm too often. For some years now the new methods of "movable" apiculture have gone some way towards correcting this dangerous habit; and when we reflect how rapidly artificial selection acts on most of our domestic animals, such as oxen, dogs, pigeons, sheep and horses, it is permissible to believe that we shall before long have a race of bees that will entirely renounce natural swarming and devote all their activity to the collection of honey and pollen.
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But for the other faults: might not an intelligence that possessed a clearer consciousness of the aim of common life emancipate itself from them? Much might be said concerning these faults, which emanate now from what is unknown to us in the hive, now from swarming and its resultant errors, for which we are partly to blame. But let every man judge for himself, and, having seen what has gone before, let him grant or deny intelligence to the bees, as he may think proper. I am not eager to defend them. It seems to me that in many circumstances they give proof of understanding, but my curiosity would not be less were all that they do done blindly. It is interesting to watch a brain possessed of extraordinary resources within itself wherewith it may combat cold and hunger, death, time, space, and solitude, all the enemies of matter that is springing to life; but should a creature succeed in maintaining its little profound and complicated existence without overstepping the boundaries of instinct, without doing anything but what is ordinary, that would be very interesting too, and very extraordinary. Restore the ordinary and the marvellous to their veritable place in the bosom of nature, and their values shift; one equals the other. We find that their names are usurped; and that it is not they, but the things we cannot understand or explain that should arrest our attention, refresh our activity, and give a new and juster form to our thoughts and feelings and words. There is wisdom in attaching oneself to nought beside.
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