Blow flies are in the Family Calliphoridae and are considered filth flies because they are a terrible nuisance to people and are thought to be disease vectors. Overall, blow flies have a bad reputation because of their less than socially approved eating habits.

Are blow flies harmful?

Are blow flies dangerous? Yes, blow flies are considered to be a very dangerous species of pest to have living inside or around your home. These flies land on feces, dead animals, and other decaying organic matter causing them to carry a lot of dangerous bacteria and parasites around with them on their legs and body.

Are blow flies good for anything?

Adult Blow Flies are attracted to flowers where they feed on nectar, and because they are hairy they are very efficient pollinators. Pollination, along with the other ecological service Blow Flies perform - breaking down animal carcasses - makes them beneficial insects rather than pests.