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Ants, says Mr. Wallace, without one touch of satire, ‘force themselves upon the attention of everyone who visits the tropics.’ They do, indeed, and that most pungently; if by no other method, at least by the simple and effectual one of stinging. The majority of ants in every nest are of course neuters, or workers, that is to say, strictly speaking, undeveloped females, incapable of laying eggs. But they still retain the ovipositor, which is converted into a sting, and supplied with a poisonous liquid to eject afterwards into the wound. So admirably adapted to its purpose is this beautiful provision of nature, that some tropical ants can sting with such violence as to make your leg swell and confine you for some days to your room; while cases have even been known in which the person attacked has fainted with pain, or had a serious attack of fever in consequence. It is not every kind of ant, however, that can sting; a great many can only bite with their little hard horny jaws, and then eject a drop of formic poison afterwards into the hole caused by the bite. The distinction is a delicate physiological one, not much appreciated by the victims of either mode of attack. The perfect females can also sting, but not, of course, the males, who are poor, wretched, useless creatures, only good as husbands for the community, and dying off as soon as they have performed their part in the world–another beautiful provision, which saves the workers the trouble of killing them off, as bees do with drones after the marriage flight of the queen bee.

The blind driver-ants of West Africa are among the very few species that render any service to man, and that, of course, only incidentally. Unlike most other members of their class, the driver-ants have no settled place of residence; they are vagabonds and wanderers upon the face of the earth, formican tramps, blind beggars, who lead a gipsy existence, and keep perpetually upon the move, smelling their way cautiously from one camping-place to another. They march by night, or on cloudy days, like wise tropical strategists, and never expose themselves to the heat of the day in broad sunshine, as though they were no better than the mere numbered British Tommy Atkins at Coomassie or in the Soudan. They move in vast armies across country, driving everything before them as they go; for they belong to the stinging division, and are very voracious in their personal habits. Not only do they eat up the insects in their line of march, but they fall even upon larger creatures and upon big snakes, which they attack first in the eyes, the most vulnerable portion. When they reach a negro village the inhabitants turn out en masse, and run away, exactly as if the visitors were English explorers or brave Marines, bent upon retaliating for the theft of a knife by nobly burning down King Tom’s town or King Jumbo’s capital. Then the negroes wait in the jungle till the little black army has passed on, after clearing out the huts by the way of everything eatable. When they return they find their calabashes and saucepans licked clean, but they also find every rat, mouse, lizard, cockroach, gecko, and beetle completely cleared out from the whole village. Most of them have cut and run at the first approach of the drivers; of the remainder, a few blanched and neatly-picked skeletons alone remain to tell the tale.

As I wish to be considered a veracious historian, I will not retail the further strange stories that still find their way into books of natural history about the manners and habits of these blind marauders. They cross rivers, the West African gossips declare, by a number of devoted individuals flinging themselves first into the water as a living bridge, like so many six-legged Marcus Curtiuses, while over their drowning bodies the heedless remainder march in safety to the other side. If the story is not true, it is at least well invented; for the ant-commonwealth everywhere carries to the extremest pitch the old Roman doctrine of the absolute subjection of the individual to the State. So exactly is this the case that in some species there are a few large, overgrown, lazy ants in each nest, which do no work themselves, but accompany the workers on their expeditions; and the sole use of these idle mouths seems to be to attract the attention of birds and other enemies, and so distract it from the useful workers, the mainstay of the entire community. It is almost as though an army, marching against a tribe of cannibals, were to place itself in the centre of a hollow square formed of all the fattest people in the country, whose fine condition and fitness for killing might immediately engross the attention of the hungry enemy. Ants, in fact, have, for the most part, already reached the goal set before us as a delightful one by most current schools of socialist philosophers, in which the individual is absolutely sacrificed in every way to the needs of the community.