The pale yellow ones with black spots are apparently the "Asian Strain" and are the most vicious-- to me it feels like a "sweat bee" sting. Swat one and it makes a nasty beetlejuice smell and can stain clothing

I don't bother vacuuming until they stop coming

I read on the net a green house in a brushy or wooded area is their favorite place to Winter over-- next time ill choose white!