This angry people, so well armed and so courageous, we may readily imagine, are not always at peace with their neighbours; causes of dissension may arise, to light the flame of war between the inhabitants of nests not far distant from each other. To these little bustling creatures, a square foot of earth is a territory worth contending for; their droves of aphides being equally valuable with the flocks and herds that cover our plains; and the body of a fly or a beetle, or a cargo of straws and bits of stick, an acquisition as important as the treasures of a Lima fleet to our seamen. Their wars are usually between nests of different species; sometimes, however, those of the same, when so near as to interfere with and incommode each other, have their battles; and with respect to ants of one species, Myrmica rubra, combats occasionally take place, contrary to the general habits of the tribe of ants, between those of the same nest.
The wars of the red ant (M. rubra) are usually between a small number of the citizens; and the object, according to Gould, is to get rid of a useless member of the community, (it does not argue much in favour of their humanity, that it is all one if it be by sickness that this member is disabled,) rather than any real civil contest. The red colonies, (says this author,) are the only ones I could ever observe to feed upon their own species. You may frequently discern a party of from five or six to twenty, surrounding one of their own kind, or even fraternity, and pulling it to pieces. The ant they attack is generally feeble, and of a languid complexion, occasioned perhaps by some accident or other.—Gould, 104.
“I once saw one of these ants dragged out of the nest by another, without its head; it was still alive, and could crawl about. A lively imagination might have fancied that this poor ant was a criminal, condemned by a court of justice to suffer the extreme sentence of the law. It was more probably, however, a champion that had been decapitated in an unequal combat, unless we admit Gould’s idea, and suppose it to have suffered because it was an unprofitable member of the community.[14] At another time I found three individuals that were fighting with great fury, chained together by their mandibles; one of these had lost two of the legs of one side, yet it appeared to walk well, and was as eager to attack and seize its opponents, as if it was unhurt. This did not look like languor or sickness.”
The wars of ants that are not of the same species take place usually between those that differ in size; and the great endeavouring to oppress the small, are nevertheless often outnumbered by them, and defeated. Their battles have long been celebrated; and the dates of them, as if they were events of the first importance, have been formally recorded. Æneas Sylvius, after giving a very circumstantial account of one contested with much obstinacy by a great and small species, on the trunk of a pear-tree, gravely states, “This action was fought in the pontificate of Eugenius the Fourth, in the presence of Nicholas Pistoriensis, an eminent lawyer, who related the whole history of the battle with the greatest fidelity!” A similar engagement between great and small ants is recorded by Olaus Magnus, in which the small ones being victorious, are said to have buried the bodies of their own soldiers, but left those of their giant enemies a prey to the birds. This event happened previous to the expulsion of the tyrant Christian the Second from Sweden.—Mouffet, Theatr. Ins. 242.
M. P. Huber is the only modern author that appears to have been witness to these combats. He tells us, that when the great attack the small, they seek to take them by surprise, (probably to avoid their fastening themselves to their legs,) and, seizing them by the upper part of the body, they strangle them with their mandibles; but when the small have time to foresee the attack, they give notice to their companions, who rush in crowds to their succour. Sometimes, however, after suffering a signal defeat, the smaller species are obliged to shift their quarters, and to seek an establishment more out of the way of danger. In order to cover their march, many small bodies are then posted at a little distance from the nest. As soon as the large ants approach the camp, the foremost sentinels instantly fly at them with the greatest rage; a violent struggle ensues, multitudes of their friends come to their assistance, and, though no match for their enemies singly, by dint of numbers they prevail, and the giant is either slain or led captive to the hostile camp. The species whose proceedings M. Huber observed, were F. herculanea, L. and F. sanguinea, Latr.; neither of which have yet been discovered in Britain.—Huber, 160.
The White Ants, or Termites.—The majority of these animals are natives of tropical countries, though two species are indigenous to Europe; one of which, thought to have been imported, is come so near to us as Bourdeaux. Their society consists of five different descriptions of individuals: workers or larvæ, nymphs or pupæ, neuters or soldiers, males, and females.
1. The workers or larvæ, answering to the hymenopterous neuters, are the most numerous, and, at the same time, most active part of the community; upon whom devolves the office of erecting and repairing the buildings, collecting provision, attending upon the female, conveying the eggs, when laid, to the nurseries, and feeding the young larvæ till they are old enough to take care of themselves. They are distinguished from the soldiers by their diminutive size, by their round heads, and shorter mandibles.
2. The nymphs, or pupæ, differ in nothing from the larvæ, and probably are equally active, except that they have rudiments of wings, or rather wings folded up in cases.
3. The neuters are much less numerous than the workers, bearing the proportion of one to one hundred, and exceeding them greatly in bulk. They are also distinguishable by their long and large heads, armed with very long tubulate mandibles. Their office is that of sentinels; and when the nest is attacked, to them is committed the task of defending it. These neuters seem to be a kind of abortive females, and there is nothing analogous to them in any other department of entomology.
4 and 5. Males and females, or the insects arrived at a state of perfection, and capable of continuing the species. There is only one of each in every separate society; they are exempted from all participation in the labours and employments occupying the rest of the community, that they may be wholly devoted to the furnishing of a constant accession to the population of the colony. Though at their first disclosure from the pupæ they have four wings, like the female ants, they soon cast them; but they may then be distinguished from the blind larvæ, pupæ, and neuters, by their large and prominent eyes.