We all know what happens if you search "botfly" on YouTube. This, however, is a much more rounded and interesting video about the botfly life cycle from Piotr Naskrecki, an entomologist who, having been infected serendipitously, decided to allow the parasite to complete the stage he was hosting, in the interests of scientific filmmaking. [more inside]
Ms. Serrao wanted to remove the wriggling, chewing larva as soon as possible, but she also realized that the botfly in her head presented a unique opportunity for a nature photographer. As a result, she videotaped herself and the efforts by her surprisingly stoic husband, Greg Hiemenz, to remove the worm-like creature. A Vacation Bug That Keeps Biting. With, of course, video.
Bot flies are large, stout bodied, hairy flies that resemble bumblebees. But how they reproduce is what makes them interesting: 1) An egg-laden female botfly captures a night-flying female mosquito and glues her eggs on to it. 2) When the mosquito is released and bites a victim, the host's body heat triggers an egg to hatch. 3) It falls off and burrows in. Even more interesting is that sometimes, this happens on humans! [YouTube/NSFSqueamish] And on humans sometimes, this happens in the most inconvenient [pdf] of places.
Man pulls botfly larva from his own stomach. Previously, from head. From eye (Snopes, w/pictures). Wikipedia.