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.