On the Banks of the Amazon

by William Henry Giles Kingston

We thanked the Indians for the assistance they had given us in killing our enemy. They had come, they said, to finish the canoe, and also to inquire about Maono and Illora, whose absence had caused the tribe great alarm. They had also brought us some mandioca-flour and a supply of fruits. Farinha or flour, I should say, is produced from the same root—cassava, or manioc—as is tapioca, and is like it in appearance, only of a yellower colour, caused by the woody fibre mixed with the pure starch which forms the tapioca. There were also several cabbage-palms, always a welcome addition to our vegetables. Among the fruit were some pine-apples, which had been procured in a dry treeless district—so we understood—some miles in the interior.

Ellen begged that they would remove the body of the serpent to a distance, as she did not at all like seeing it hanging up to the tree near us. Fastening sipos to it, they accordingly dragged it away. By the following morning not a particle of it remained, it having furnished a feast to several armadillos, vultures, and other birds of prey.

The last evening of our stay had arrived. Our provision were ready for embarking, and all our goods packed up. I was awoke by hearing Domingos cry out—

“Some rats, or other creatures, have got into the hut, and are eating up the farinha.”

On striking a light, we hurried to the corner in which our provisions were stored, intending to drive out the intruders, when, instead of rats, we found a column of ants passing to and fro between the door and our baskets of food. Each of them carried a grain of a tapioca-like substance as big as itself. In vain we tried to drive them off. Though hundreds were killed, others came on in a most determined manner, as if they had resolved to rob us at all cost. At last John proposed that we should blow them up. We called out to Ellen not to be alarmed, and then spread a train of powder across the column, when we set it on fire. This seemed to stagger them, but others still came on. Not till we had performed the operation three times did they seem to discover their danger, when the first coming on turned round and warned those behind, and the whole took their departure. The next morning we traced them to a spot at a considerable distance, where we came upon a mound of earth between two or three feet high, and nearly eleven yards in circumference. This we found was the dome which protected the entrance to the abode of our visitors of the previous night. It was a wonder they had not found us out before. It was of a different colour to the surrounding ground. This was owing to its being composed of the under-soil brought up from below. We perceived a number of small holes in the sides—the commencement of galleries. We discovered, on digging into it, that each led to a broad gallery four feet in diameter. This again led down into the centre of the wonderful habitation.

“Hilloa!” cried Arthur; “here comes Birnam Wood in miniature.”

He was at some distance from us. On going up to him we found what looked like a vast number of leaves moving along over the ground. On examining them, we discovered that each was of the size and shape of a small coin, and carried by an ant. On tracing them back we found the tree at which they were at work. It was covered by vast multitudes. Each ant was working away at a leaf, cutting out a circle with its sharp scissor-like jaws. As soon as the operation was complete, it lifted it up vertically and marched away towards the mound. As one lot of labourers descended, others ascended and took their places, so that in a short time the tree was denuded of leaves. These leaves were used, we discovered, to thatch the domes of their galleries and halls to keep them dry, and protect the young broods in the nests beneath them. One body of workers was employed in bringing the leaves which they cast down on the hillock, while another placed them so as to form the roof, covering them with a layer of earth brought up in single grains with prodigious labour from the soil below. There appeared to be three different classes of workers—some employed entirely below, others acting as masons or tilers, and others entirely engaged in bringing the materials from a distance. There were, besides, soldiers armed with powerful mandibles, who accompanied the workers for defence, and walked backwards and forwards near them without doing anything. They have also a queen-ant, who dwells in the centre of their castle, and is engaged in laying the eggs, not only to furnish broods for the colony, but to send forth vast numbers of winged ants to form new ones. At the commencement of the year the workers can be seen clearing the galleries, and evidently preparing for some important event. Soon afterwards a vast number of winged males and females issue forth, the females measuring two and a quarter inches in expanse of wing, though the males are much smaller. Few of them, however, escape to enjoy existence, for they are immediately set upon by numbers of insectivorous animals and devoured. The few females who escape become the mothers of new colonies.

While digging, we came upon a snake-like creature about a foot long. Directly Duppo saw it he entreated us not to touch it, as it was fearfully poisonous, and called it the mother of the saubas. We, however, knew it to be perfectly harmless. He declared that it had a head at each end of its body. We convinced him, however, that he was wrong, by showing him the head and tail. The body was covered with small scales, the eyes were scarcely perceptible, and the mouth was like that of a lizard. He asserted that the sauba-ants are very much attached to the snake, and that, if we took it away, they would all desert the spot. In reality, the snake found a convenient hiding-place in the galleries of the ants, while, when in want of food, it could at all times make a substantial meal off them. When the ant-eater opens one of these galleries, the workers immediately run off and hide themselves, while the soldier-ants rush forth to attack the intruder, and, of course, immediately fall victims; thus preserving, by the sacrifice of their own lives, the rest of the community. The peculiar motion of the snake we found, scientifically called amphisbaenae, wriggling as it does backwards and forwards, has given rise to the idea of its having two heads. Duppo told us many other stories about it, which I have no space to mention. These ants sometimes form mounds from thirty to forty yards in circumference, and have been known to burrow even under rivers. As they attack fruit-trees, they are a great pest to the inhabitants of the settled parts of the country, and are sometimes destroyed by forcing fumes of sulphur through their galleries. Their chief use in the economy of Nature seems to be the consumption of decayed vegetable matter, as they are exclusively vegetarians.

While the Indians were getting the boat down to the water, and Ellen and her attendants, assisted by Domingos, were packing up, John, Duppo, and I took a ramble into the woods to kill some more game, as we were not likely to have anything but fish for some time to come. As we were going along, I heard the twittering of some dull-plumaged birds in the bushes, and was trying to get a shot at them, when I saw John, who was a little way ahead, jumping about in the most extraordinary manner. Duppo cried out, on seeing him, “Tauoca!” and made a sign to us to run off, himself setting the example. John followed. “I have been attacked by an army of ants,” he exclaimed. “See, here are hundreds sticking to me.” Duppo and I went to his assistance, and we found his legs covered with ants with enormous jaws, holding on so tight to the flesh that, in pulling them off, the heads of many were left sticking in the wounds they had made. We caught sight of the column which was advancing, about six deep, with thinner columns foraging on either side of the main army. Creatures of all sorts were getting out of their way with good cause, for whenever they came upon a maggot, caterpillar, or any larvae, they instantly set upon it and tore it to pieces, each ant loading itself with as much as it could carry. A little in front of them was a wasp’s nest, on a low shrub. They mounted the twigs, and, gnawing away at the papery covering, quickly got at the larvae and the newly-hatched wasps. These they carried off in spite of the efforts of the enraged parents, who kept flying about them. They were ecitons, or foraging ants, of which there are numerous species. They also came upon a bank, in their course, in which was a nest belonging to a large species of white ant. They forced their way in, attacked them, and dragged out the bodies of the slain. These were cut into three or four pieces, each of which was lifted up by an eciton and carried off.

However, a volume could be filled with accounts of the numberless ants and termites of South America, and their curious and varied habits. One species is quite blind; others tunnel as they go, or form ways to enable them to make their attacks in secret. For this purpose the little creatures will form miles of covered ways. Some build their nests of clay in trees, and others hollow out abodes under the bark. They vary, too, in size and form. Some are half an inch long; some white, others red and black; some sting furiously. The ants inhabiting trees are those which commit depredations in houses chiefly. The most annoying of the species is the fire-ant—a little creature of a shining reddish colour. They live in the sand, where they form subterranean galleries covered by a sandy dome. They enter houses, and attack eatables of all sorts. When they attack human beings they fix their jaws in the flesh, and, doubling up their tails, sting with all their might; and a very fearful sting it is. When we met with them we were obliged to smear the ropes of our hammocks with balsam of copaüba. Eatables are suspended in baskets by ropes covered with the same balsam, and the legs of chairs and footstools are also covered to prevent their climbing up and stinging those sitting on them. Villages have sometimes been deserted in consequence of the attacks of these fierce little insects. However, they are only found on the sandy banks of the river and drier parts of the country.