Leishmaniasis
A Phlebotomus papatasi sand fly that transmits one type of leishmaniasis, next to an image of Leishmania sp. promastigotes from culture. This is the stage of the parasite that occurs inside the mid-gut of the sand fly.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"CDC%20-%20Leishmaniasis."
http://www.cdc.gov/parasites/leishmaniasis/index.html
Centers%20for%20Disease%20Control%20and%20Prevention
Public domain.