Welcome to the UW-Madison Medical Entomology Lab (MEL) Mosquito site! This site is intended to be a resource about mosquitoes in Wisconsin, the diseases they may be carrying, and science-based information on methods to keep them from biting you.

2018 update:  Big decline between June 4 and June 11 captures.  With the rain and flooding, expect to see higher floodwater mosquitoes over the next 10 days.

Watch for the daytime biter Aedes albopictus, first detected in Wisconsin last year (see below-white line on thorax is a good clue).  If you catch one, get in touch as we are tracking the ways these may be introduced into Wisconsin.