Vancouver seems to have alot less mosquitos than other areas where I've lived (southern Ontario). However I didn't know this until we moved here.
Mosquitoes are attracted to me...I'm often amazed how seldom mosquitoes bite my partner during the hikes we've done in mosquitoey areas. The type of bike touring rides that I don't enjoy a whole lot..is camping in a mosquitoey area after a long hot, loaded ride.
When travelling in Europe, I discovered some older places just don't have window screens.. so without ..thinking we stayed in a pension in Brugges, Belgium right by a canal (a city known for its medieval canals) for several days. I had the bed sheets nearly over my head..at night because of the critters flying in.
And in Lucerne, Switzerland in our hotel, there were these huge friggin' mosquitos cruising all night in room. I sweated under my sheets..
And in Florence, Italy I had to get my pharmacist sister and translator over to a pharmacy to buy ointment to bring down my swelling and itching. This drove me nuts...I missed the Uffuzi Galleries..for the art..