Chigger range 

There should be a section on which areas of the world are plagued by chiggers and which aren't.  I know here in the U.S., they are prevalent in the hot and humid parts of the country - mostly in the south east, the south, and the midwest, and they're not present in northern areas, or the high mountains and deserts of the west.  I don't think the west coast has much of a chigger problem either...

Anyhow - quite awful animals - right up there with ticks as some of the worst!