Last year I thought most insects were our friends--they drink the sap water and dry the wood out faster. This year they turned on me and produced bites that itched like h__l and needed attention by prescription creams. Most of the bites were at the ankles. The bugs went right through my jeans and thick socks, ignoring all sprays, including deet. Your mud daubers are in the same league as the crawlers that got me. They both make mosquitoes look like child's play.