The most important of these are bots and other larv or maggots of various flies (Diptera).
Many other species of animals are infested with their own particular species of bots.
bots, Botts, botz, n. the larv of the botfly found in the flesh and in the intestines of animals.
One of Orson Pratt's horses is very sick, supposed to be the bots.
In the paper (quoted below) Murie appends a list of all the animals in which bots have been found.
Hopes list records five cases of bots of strus hominus, one of .
Small intestines—these latter contained about a dozen bots, which were nearly free, but had pierced to the muscular coat.
Fig. 46, taken from a drawing in Raumur's Memoirs, represents the bots of which we speak.
They proved to be bots, formed by a fly that is the special torment of the deer in summer.
The country people are well aware of the nature and cause of these bots.
in Internet sense, c.2000, short for robot. Its modern use has curious affinities with earlier uses, e.g. "parasitical worm or maggot" (1520s), of unknown origin; and Australian-New Zealand slang "worthless, troublesome person" (World War I-era). The method of minting new slang by clipping the heads off words does not seem to be old or widespread in English. Examples (za from pizza, zels from pretzels, rents from parents) are American English student or teen slang and seem to date back no further than late 1960s.
The parasitic larva of a botfly.
bots A disease of mammals, especially cattle and horses, caused by infestation of the stomach or intestines with botfly larvae.