the.com/botfly

nature's worst houseguest, it grows up rent-free inside your skin.

means A botfly is a stout, hairy fly whose larvae develop as parasites inside the flesh of mammals — including, occasionally, humans.

from The 'bot' here is the real star: 'bot' (also spelled 'bott') is an old word, recorded since the 1500s, for the maggot or larva of these flies, especially the ones found in horses and cattle. Its deeper roots are murky — possibly from a Gaelic or Celtic source, possibly imitative — but it long named the worm before it named the fly. 'Fly' is the plain old Germanic word for a flying insect, a cousin of 'flee' and 'flutter,' from the simple sense of something that flies. So a botfly is, quite literally, the fly that comes from the bot.

egg delivery
glues eggs to mosquitoes, hijacking them as couriers
living tenant
larva breathes through a hole in your flesh
removal trick
suffocate with bacon or glue to evict it
lifespan
adults can't even eat, surviving days to mate
global reach
human botflies thrive across Central and South America
for instance

dermatobia hominis — parasitic botfly found in central and south america that lays eggs on mosquitoes, infecting humans

cordylobia anthropophaga — tumbu fly endemic to sub-saharan africa that burrows into skin causing boils

gasterophilus intestinalis — horse botfly whose larvae infect equines worldwide, historically common in pre-antibiotic human cases

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