As for the rest of its person, the head is very slenderly attached by the neck, easily turned, and not all of-one piece with the body as in the locust; the eyes are projecting and horny; the chest strong, with the legs springing freely from it instead of lying close like a wasp’s. The belly also is well fortified, and looks like a breastplate, with its broad bands and scales. Its weapons are not in the tail as with wasp and bee, but in its mouth and proboscis; with the latter, in which it is like the elephant, it forages, takes hold of things, and by means of a sucker at its tip attaches itself firmly to them. This proboscis is also supplied’ with a projecting tooth, with which the fly makes a puncture, and so drinks blood. It does drink milk, but also likes blood, which it gets without hurting its prey much. Of its six legs, four only are for walking, and the front pair serves for hands; you may see it standing on four legs and holding up a morsel in these hands, which it consumes in very human fashion.

It does not come into being in its ultimate shape, but starts as a worm in the dead body of man or animal; then it gradually develops legs, puts forth wings and becomes a flying instead of a creeping thing, which generates in turn and produces a little worm, one day to be a fly. Living with man, sharing his food. and his table, it tastes everything except his oil, to drink which is death to it. In any case it soon perishes, having but a short span of life allotted to it, but while it lives it loves the light, and is active only under its influence; at night it rests, neither flying nor buzzing, but retiring and keeping quiet.