Greenflies are Beneficial to Humans
Langau is a type of insect that can spread the disease, because of the way food and its nature that often fly to a dirty place such as in crush, waste and so forth.
However, Greenflies Apparently Helpful for Humans - The green fly, also known as the green bottle fly, is one of a kind of fly belonging to the family Calliphoridae. and the genus Lucilia. The characteristic of this fly is to have a green bottle body color. These flies are found in most parts of the world, especially the Western Hemisphere, California USA and Australia. Body size 10-14 mm, slightly larger than the house fly, and has a shiny green color with black body lines. The most famous species of this fly include Lucilia sericata (or Phaenicia sericata, depending on the area of its habitat), as well as other species such as Lucilia caesar, Lucilia cuprina, Lucilia coeruleiviridis, and Lucilia illustris. Although known as a source of disease because its behavior always perched in a dirty place, green flies turned out to have benefits for humans.