fly
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"Botfly (Dermatobia hominis), whose larvae mature inside flesh. An egg-laden female botfly captures a night-flying female mosquito and glues her eggs on to it. When the mosquito is released and bites a victim, the host's body heat triggers an egg to hatch. It falls off and burrows in. The larva secures itself with two anal hooks, secreting an antibiotic into its burrow, which staves off competing bacteria and fungi. Its spiracle pokes out of the tiny hole, and a small mound forms which will grow to the size of a goose egg before the mature larva falls out. Should you be unfortunate enough to fall prey to a lava - an extremely unlikely occurrence for the average visitor - you have three cures available. One is to use the acrid white sap of the matatorsalo (bot killer), which kills the larva but leaves its corpse intact. Another is to apply a piece of soft, raw meat to the top of the airhole. As the maggot must breath, it burrows upward into the meat. A third is to apply a generous helping of Elmer's glue or cement to the hole. Cover this with a circular patch of adhesive tape; seal this tape with a final application of glue. Squeeze out the dead larva the next morning. The only other alternative is to leave it to grow to maturity, giving you an opportunity to experience the transmogrification of part of yourself into another creature. It only hurts when the maggot squirms and if you swim, presumably because you are cutting off its air supply. Don't try to pull it out because it will burst. Part of its body will remain inside and cause an infection