CHAPTER XXVII. (2)

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THE ANT-LION.

Ants are disagreeable insects in any country, but especially so in warm tropical climates. Their ugly appearance, their destructive habits, but, above all, the pain of their sting, or rather bite—for ants do not sting as wasps, but bite with the jaws, and then infuse poison into the wound—all these render them very unpopular creatures. A superficial thinker would suppose that such troublesome insects could be of no use, and would question the propriety of Nature in having created them.

But when we give the subject a little attention, we find that they were not created in vain. Were it not for these busy creatures, what would become of the vast quantities of decomposing substances found in some countries? What would be done with the decaying vegetation and the dead animal matter? Why, in many places, were it not consumed by these insects, and reorganised into new forms of life, it would produce pestilence and death; and surely these are far more disagreeable things than ants.

Of ants there are many different kinds; but the greatest number of species belong to warm countries, where, indeed, they are most useful. Some of these species are so curious in their habits, that whole volumes have been written about them, and naturalists have spent a life-time in their study and observation. Their social and domestic economy is of the most singular character, more so than that of the bees; and I am afraid here to give a single trait of their lives, lest I should be led on to talk too much about them. I need only mention the wonderful nests or hills which some species build—those great cones of twenty feet in height, and so strong that wild bulls run up their sides and stand upon their tops without doing them the least injury!

Others make their houses of cylindrical form, rising several feet from the surface. Others, again, prefer nesting in the trees, where they construct large cellular masses of many shapes, suspending them from the highest branches; while many species make their waxen dwellings in hollow trunks, or beneath the surface of the earth. There is not a species, however, whose habits, fully observed and described, would not strike you with astonishment. Indeed, it is difficult to believe all that is related about these insects by naturalists who have made them their study. One can hardly understand how such little creatures can be gifted with so much intelligence, or instinct, as some choose to call it.

Man is not the only enemy of the ants. If he were so, it is to be feared that these small insignificant creatures would soon make the earth too hot for him. So prolific are they, that if left to themselves our whole planet would, in a short period, become a gigantic ants' nest!

Nature has wisely provided against the over increase of the ant family. No living thing has a greater variety of enemies than they. In all the divisions of animated nature there are ant-destroyers—ant-eaters! To begin with the mammalia, man himself feeds upon them—for there are tribes of Indians in South America, the principal part of whose food consists of dried termites, which they bake into a kind of “paste!” There are quadrupeds that live exclusively on them, as the ant-bear, already described, and the pangolins, or scaly ant-eaters of the Eastern continent. There are birds, too, of many sorts that devour the ants; and there are even some who make them exclusively their food, as the genus Myothera, or “ant-catchers.” Many kinds of reptiles, both snakes and lizards, are ant-eaters; and, what is strangest of all, there are insects that prey upon them!

No wonder, then, with such a variety of enemies that the ants are kept within proper limits, and are not allowed to overrun the earth.

The observations just made are very similar to those that were addressed by DoÑa Isidora to the little Leona, one day when they were left alone. The others had gone about their usual occupation of bark-cutting, and these, of course, remained at home to take care of the house and cook the dinner. That was already hanging over a fire outside the house: for in these hot countries it is often more convenient to do the cooking out-of-doors.

DoÑa Isidora, busy with some sewing, was seated under the shadow of the banana-trees, and the pretty little Leona was playing near her. Leona had been abusing the ants, partly on account of their having so frightened Leon, and partly because one of the red species had bitten herself the day before; and it was for this reason that her mother had entered into such explanations regarding these creatures, with a view of exculpating them from the bitter accusations urged against them by Leona. Talking about ants very naturally led them to cast their eyes to the ground to see if any of the creatures were near; and sure enough there were several of the red ones wandering about. Just then the eyes of DoÑa Isidora rested upon a very different insect, and she drew the attention of her daughter to it.

It was an insect of considerable size, being full an inch in length, with an elongated oval body, and a small flat head. From the head protruded two great horny jaws, that bore some resemblance to a pair of calliper compasses. Its legs were short and very unfitted for motion. Indeed they were not of much use for that purpose, as it could make very little way on them, but crawled only sidewards, or backwards, with great apparent difficulty. The creature was of a greyish or sand colour; and in the sand, where it was seated, it might not have been observed at all had not the lady's eyes been directed upon the very spot. But DoÑa Isidora, who was a very good entomologist, recognised it; and, knowing that it was a very curious insect, on this account called the attention of her daughter to it.

“What is it, mamma?” inquired the little Leona, bending forward to examine it.

“The ant-lion.”

“The ant-lion! Why, mamma, it is an insect! How then can it be called lion?”

“It is a name given it,” replied the lady, “on account of its fierce habits, which, in that respect, assimilate it to its powerful namesake,—the king of the beasts; and, indeed, this little creature has more strength and ferocity in proportion to its size than even the lion himself.”

“But why the ant-lion, mamma?”

“Because it preys principally on ants. I have said there are insect ant-eaters. This is one of them.”

“But how can such a slow creature as that get hold of them? Why, the ants could crawl out of its way in a moment!”

“That is true. Nevertheless it manages to capture as many as it requires. Remember 'the race is not always to the swift.' It is by stratagem it succeeds in taking its prey—a very singular stratagem too. If you will sit back and not frighten it, I have no doubt it will soon give you an opportunity of seeing how it manages the matter.”

Leona took a seat by the side of her mother. They were both at just such a distance from the ant-lion that they could observe every movement it made; but for a considerable time it remained quiet; no doubt, because they had alarmed it. In the interval DoÑa Isidora imparted to her daughter some further information about its natural history.

“The ant-lion,” said she, “is not an insect in its perfect state, but only the larva of one. The perfect insect is a very different creature, having wings and longer legs. It is one of the neuropterous tribe, or those with nerved wings. The wings of this species rest against each other, forming a covering over its body, like the roof upon a house. They are most beautifully reticulated like the finest lace-work, and variegated with dark spots, that give the insect a very elegant appearance. Its habits are quite different to those which it follows when a larva, or in that state when it is the ant-lion. It flies but little during the day, and is usually found quietly sitting amongst the leaves of plants, and seems to be one of the most pacific and harmless of insects. How very different with the larva—the very reverse—See!”

DoÑa Isidora pointed to the ant-lion that was just then beginning to bestir itself, and both sat silent regarding it attentively.

First, then, the little creature going backwards, and working with its callipers, traced a circle on the surface of the sand. This circle was between two and three inches in diameter. Having completed it, it now commenced to clear out all the sand within the circle. To accomplish this, it was seen to scrape up the sand with one of its fore-feet, and shovel a quantity of it upon its flat head; then, giving a sudden jerk of the neck, it pitched the sand several inches outside the traced circumference.

This operation it repeated so often, and so adroitly, that in a very short time a round pit began to show itself in the surface of the ground. Whenever it encountered a stone, this was raised between its callipers and pitched out beyond the ring. Sometimes stones occurred that were too large to be thrown out in this way. These it managed to get upon its back, and, then crawling cautiously up the sides of the pit, it tumbled them upon the edge and rolled them away. Had it met with a stone so large as to render this impossible, it would have left the place, and chosen another spot of ground. Fortunately this was not the case, and they had an opportunity of watching the labour to its conclusion.

For nearly an hour they sat watching it—of course not neglecting their other affairs—and, at the end of that time, the ant-lion had jerked out so much sand, that a little funnel-shaped pit was formed nearly as deep as it was wide. This was its trap, and it was now finished and ready for action.

Having made all its arrangements, it had nothing more to do than remain at the bottom of the pit, and wait patiently until some unfortunate ant should chance to come that way and fall in; and where these insects were constantly wandering over the ground, such an accident would, sooner or later, be certain to take place.

Lest the ant should peep into the pit, discover its hideous form below, and then retreat, this ant-lion had actually the cunning to bury its body in the sand, leaving only a small portion of its head to be seen.

Both DoÑa Isidora and the little Leona remained watching with increased interest. They were very anxious to witness the result. They were not kept long in suspense. I have already stated that many ants were crawling about. There were dozens of them “quatering” the ground in every direction in search of their own prey; and they left not an inch of it unsearched. At last one was seen to approach the trap of the ant-lion. Curiosity brings it to the very edge of that terrible pit-fall. It protrudes its head and part of its body over the brink—it is not such a terrible gulf to look into—if it should slip down, it could easily crawl out again.

Ha! it little knows the enemy that is ambushed there. It perceives something singular—an odd something—perhaps it might be something good to eat. It is half resolved to slide down and make a closer examination of this something. It is balancing on the brink, and would, no doubt, have gone down voluntarily, but that is no longer left to its own choice. The mysterious object at the bottom of the funnel suddenly springs up and shows itself—it is the ant-lion in all its hideous proportions; and before the little ant can draw itself away, the other has flung around it a shower of sand that brings it rolling down the side of the pit. Then the sharp callipers are closed upon the victim—all the moisture in his body is sucked out—and his remains, now a dry and shapeless mass, are rested for a moment upon the head of the destroyer, and then jerked far outside the pit!

The ant-lion now dresses his trap, and, again burying himself in the sand, awaits another victim.


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