Heat, moisture, odors from soaps and sweat, colors, and shapes also attract biters. The answer, unfortunately, is that they'd still get you. Sadly, altitude, topography, the weather, and countless other factors all combine to influence bug populations and their locations. It's very hard to predict. You can avoid the big bite by learning the bugs' preferences.
Most biters prefer hot and humid weather, yet dislike direct sunlight.
Therefore attacks tend to be more persistent when summer storms are threatening or it's cloudy. As the temperature drops, winds pick up, and it begins to rain, the biters take cover and disappear-at least temporarily. Mosquitoes also require stagnant or nearly stagnant water to breed, and they thrive on the wet-dry cycle. That's when you want to avoid places where water, including snow and meltwater, collects in depressions. Watch the weather, talk to the locals, and develop a taste for snow camping.