But the thoughts suggested by the brief observation of the disturbed ant’s nest hardly end thus. We may very naturally proceed to inquire into the regular organization and constitution of the ant colony, and also, as far as fact and theory may together lead, into the analogies—if analogies there be—which exist between the social instincts of ants and the ways of the higher animals, man included.
[Illustration: FIG. 1. 1, Winged termite; 2, wingless termite; 3, soldier; 4, worker; 5, female swollen with eggs.]
The common ants and their neighbors belong to the order of insects known as the Hymenoptera, a group represented by other insects of “social” habits, such as bees, wasps, and hornets. The termites, or white ants of the tropics, are the only “ants” foreign to this order of insects, the white ants being near relations of the dragonflies, may-flies, etc. The family history of the latter, as told by Mr. Bates, may serve to introduce us agreeably to ant society at large. The nests of the termites may attain a height of five feet, and present the appearance of conical hillocks, formed of earth particles “worked,” says Mr. Bates, “with a material as hard as stone.” In the neighborhood of the nests, narrow covered galleries or underground ways are everywhere to be seen, these latter being the passages along which the materials used for building the nests are conveyed. The termites are small soft-bodied animals of a pale color, but resemble the common or true ants in that they live in colonies, composed, like those of bees, of three chief grades of individuals. These grades are known as males, females, and blind “neuters,” the latter forming at once the largest bulk of the population, and including in their numbers the true “working classes” of this curious community. In the common ants, the “neuters” are regarded as being Undeveloped female insects. These neuters exhibit in the termites a further division into ordinary “workers” (Figs. 1, 4), which perform the multifarious duties connected with the ordinary life of the colony, and “soldiers” (3), which perfectly exemplify the laws of military organization in higher life, in that they have no part in the common labor, but devote themselves entirely to the defence of the colony and to the