Looks like the flight range can vary between 100s of feet and as much as 40 miles or more http://www.mosquito.org/faq#far http://www.mosquito.org/faq#far They

Looks like the flight range can vary between 100s of feet and as much as 40 miles or more http://www.mosquito.org/faq#far http://www.mosquito.org/faq#far They would have to only take a blood meal from a single host and you'd have to be able to correlate the data - but maybe?