What attracts horseflys?

Summer heat.

Magnets attract iron but not paper because paper has no magnetism.

Horse flies are attracted to damp, humid areas (swamp land) or near rivers or streams. Insecticides don't seem to bother them, but I did some research and came up with a trap for them. Although it's...

Horseflies are called horseflies because the Tabanidae family( a fly family ) is commonly called horseflies!!!!!!!!!!!! :D

Because of gravity.Every thing pulls on everything else, but gravity is rather weak, so we only really notice it when we're talking about really big things like planets.The Earth pulls on the Moon,...