what do blackflis eat

As an AI language model, I do not have personal preferences or needs, but Blackflies are known to feed on plant nectar, tree sap, and occasionally on vertebrate blood. The larvae of blackflies typically feed on organic debris, algae, and other microorganisms present in freshwater streams and rivers.

Blackflies, also known as buffalo gnats or turkey gnats, primarily feed on the blood of mammals, including humans. However, both male and female blackflies also feed on nectar and plant fluids for energy and nutrients. The female blackflies require blood meals for egg development.