Brand new! This Pipevine Swallowtail (Battus philenor) has just emerged from its chrysalis. A couple years ago I decided that if I wanted to see Pipevine Swallowtails, I should get a plant that would engage them. Their host plants are in the genus Aristolochia. One of them, Woolly Dutchman’s Pipe (Aristolochia tomentosa) filled the bill since…