September 24, 2012 -- Dr. Art Evans What's Bugging You? Mason Wasps WBY-Mason-Wasps.mp3 Entomologist Dr. Art Evans discusses the discovery of a mason wasp nesting in his neighborhood with WCVE producer Steve Clarke. Photo: Mason wasp, Monobia quadridens. © 2012, A.V. Evans. Key words: Mason wasp, Monobia, carpenter bees, trap nests View the discussion thread.