While you might associate these bloodsucking insects with places such as horse farms, they can irritate a variety of animals and also humans with painful bites that may lead to allergic reactions. Because they’re active during daytime, intrusions from horseflies can make outdoor activities more difficult.How To Identify:
• ½” to 1 ¼” long
• Black or gray bodies with green eyes
• Attracted to movement, shiny surfaces, carbon dioxide, and warmth
• May be attracted to swimming pools due to the shine from the water and the movement of people