Carolina Wild Muscadine Juice

Mosquitoes Deliver Human Botfly

In Uncategorized on February 5, 2011 at 10:31 am
Photograph of a female adult human bot fly (D....

Image via Wikipedia

The human botflyDermatobia hominis, (Greek δέρμα, skin + βίος, life, and Latin hominis, of a human) is the only species of botfly that attacks humans (in addition to a wide range of other animals, including other primates[1]). It is also known as the torsalo or American warble fly,[1] even though the warble fly is in the genus Hypodermaand not Dermatobia and is a parasite on cattle and deer instead of humans.

Dermatobia fly eggs have been shown to be vectored by over 40 species of mosquitoes and muscoid flies, as well as one species of tick;[2] the female captures the mosquito and attaches its eggs to the body of it, then releases it. Either the eggs hatch while the mosquito is feeding and the larvae use the mosquito bite area as the entry point, or the eggs simply drop off the muscoid fly when it lands on the skin. The larvae develop inside the subcutaneous layers, and after approximately eight weeks, they drop out to pupate for at least a week, typically in the soil. The adults are small gray flies resembling a blowfly.

This species is native to the Americas from Mexico to northern Argentina and Chile,[1] though it is not abundant enough (nor harmful enough) to ever attain true pest status. Since the fly larvae can survive the entire eight-week development only if the wound does not become infected, it is rare for patients to experience infections unless they kill the larva without removing it completely. It is even possible that the fly larva may itself produce antibiotic secretions that help prevent infection while it is feeding. More:

 

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