![Smithsonian Insider – Blood-thirsty jungle horse-flies catch big chill from Smithsonian entomologist | Smithsonian Insider Smithsonian Insider – Blood-thirsty jungle horse-flies catch big chill from Smithsonian entomologist | Smithsonian Insider](https://insider.si.edu/wp-content/uploads/2016/03/horse-fly-vouchers.png)
Smithsonian Insider – Blood-thirsty jungle horse-flies catch big chill from Smithsonian entomologist | Smithsonian Insider
![Pete Burford on Twitter: "Check out the beautiful colours of this female horse flies, eyes. Even though the bite is pretty bad, its only the females that will bite so they can Pete Burford on Twitter: "Check out the beautiful colours of this female horse flies, eyes. Even though the bite is pretty bad, its only the females that will bite so they can](https://pbs.twimg.com/media/FM64db_WUAAfC4C.jpg:large)
Pete Burford on Twitter: "Check out the beautiful colours of this female horse flies, eyes. Even though the bite is pretty bad, its only the females that will bite so they can
![Amazon.com: Farnam Nature's Defense Natural Horse Fly Spray, Liquid Concentrate, Mix with Water, 32 Ounces, One Quart : Patio, Lawn & Garden Amazon.com: Farnam Nature's Defense Natural Horse Fly Spray, Liquid Concentrate, Mix with Water, 32 Ounces, One Quart : Patio, Lawn & Garden](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61xIEaCTIFL.jpg)
Amazon.com: Farnam Nature's Defense Natural Horse Fly Spray, Liquid Concentrate, Mix with Water, 32 Ounces, One Quart : Patio, Lawn & Garden
![Horse Flies - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension Horse Flies - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension](https://extension.umaine.edu/home-and-garden-ipm/wp-content/uploads/sites/43/2010/10/HorseFly.jpg)